From 9a4602a943aee72277e0df16d9a0826ef6eff862 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 11:05:26 +0200
Subject: [PATCH 001/166] Add HAVE_ACCESS

---
 .../libbuild2/autoconf/checks/HAVE_ACCESS.h   | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h
new file mode 100644
index 00000000..153bdf9b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h
@@ -0,0 +1,20 @@
+// HAVE_ACCESS : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_ACCESS
+
+/*  Since glibc 2.1, BSD 4.3, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(2, 0) \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    ((defined(__sun) && defined(__SVR4))
+#  define HAVE_ACCESS 1
+#endif

From 3837d8ca5cc442ba74a838dd2f9eb25cc38bc560 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 11:05:36 +0200
Subject: [PATCH 002/166] Add HAVE_ALTIVEC

---
 .../checks/instructions/HAVE_ALTIVEC.c        | 21 +++++++++++++++++++
 .../checks/instructions/buildfile             | 16 ++++++++++++++
 .../checks/instructions/config.h.in           |  1 +
 .../libbuild2/autoconf/checks/HAVE_ALTIVEC.h  |  9 ++++++++
 4 files changed, 47 insertions(+)
 create mode 100644 libbuild2-autoconf-tests/checks/instructions/HAVE_ALTIVEC.c
 create mode 100644 libbuild2-autoconf-tests/checks/instructions/buildfile
 create mode 100644 libbuild2-autoconf-tests/checks/instructions/config.h.in
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ALTIVEC.h

diff --git a/libbuild2-autoconf-tests/checks/instructions/HAVE_ALTIVEC.c b/libbuild2-autoconf-tests/checks/instructions/HAVE_ALTIVEC.c
new file mode 100644
index 00000000..761451dc
--- /dev/null
+++ b/libbuild2-autoconf-tests/checks/instructions/HAVE_ALTIVEC.c
@@ -0,0 +1,21 @@
+/* Verify existence of instruction set
+ * https://github.com/gcc-mirror/gcc/blob/9bbad3685131ec95d970f81bf75f9556d4d92742/gcc/config/rs6000/altivec.h#L33-L35
+ */
+
+#include "config.h"
+
+#ifdef HAVE_ALTIVEC
+#  include <altivec.h>
+#endif
+
+int
+main ()
+{
+#ifdef HAVE_ALTIVEC
+  vector signed int v1 = (vector signed int) { 0 };
+  vector signed int v2 = (vector signed int) { 1 };
+  v1 = vec_add(v1, v2);
+#endif
+
+  return 0;
+}
diff --git a/libbuild2-autoconf-tests/checks/instructions/buildfile b/libbuild2-autoconf-tests/checks/instructions/buildfile
new file mode 100644
index 00000000..102b2e2e
--- /dev/null
+++ b/libbuild2-autoconf-tests/checks/instructions/buildfile
@@ -0,0 +1,16 @@
+
+for t : c{*}
+{
+  exe{$name($t)}: $t h{config}
+}
+
+h{config}: in{config}
+
+c.poptions += "-I$out_base"
+
+if ($c.target.system != 'win32-msvc')
+{
+  c.libs += -pthread
+  c.poptions += -DTEST_PTHREAD
+}
+
diff --git a/libbuild2-autoconf-tests/checks/instructions/config.h.in b/libbuild2-autoconf-tests/checks/instructions/config.h.in
new file mode 100644
index 00000000..1a6fe098
--- /dev/null
+++ b/libbuild2-autoconf-tests/checks/instructions/config.h.in
@@ -0,0 +1 @@
+#undef HAVE_ALTIVEC
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ALTIVEC.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ALTIVEC.h
new file mode 100644
index 00000000..76ca909a
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ALTIVEC.h
@@ -0,0 +1,9 @@
+// HAVE_ALTIVEC
+
+#undef HAVE_ALTIVEC
+
+/* PowerPC (POWER1 and later) + compiler flag
+ */
+#if defined(__VEC__) || defined(__ALTIVEC__)
+#  define HAVE_ALTIVEC 1
+#endif

From c06b2d12eacad49020527ea6d0002b173f3a4b4d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 11:05:50 +0200
Subject: [PATCH 003/166] Add HAVE__ALIGNED_MALLOC

---
 .../libbuild2/autoconf/checks/HAVE__ALIGNED_MALLOC.h   | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE__ALIGNED_MALLOC.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE__ALIGNED_MALLOC.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE__ALIGNED_MALLOC.h
new file mode 100644
index 00000000..e9d9183a
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE__ALIGNED_MALLOC.h
@@ -0,0 +1,10 @@
+// HAVE__ALIGNED_MALLOC
+
+#undef HAVE__ALIGNED_MALLOC
+
+/* Windows
+ */
+#if defined(_WIN32)
+#  define HAVE__ALIGNED_MALLOC 1
+#endif
+

From 105ebcc2aad4b88b949a46e413b530408c643af6 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 12:41:44 +0200
Subject: [PATCH 004/166] Add HAVE_ATAN2F

---
 .../libbuild2/autoconf/checks/HAVE_ATAN2F.h       | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h
new file mode 100644
index 00000000..c916f850
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h
@@ -0,0 +1,15 @@
+// HAVE_ATAN2F : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_ATAN2F
+
+/* Since ANSI C89/ISO C99, OpenBSD 2.6
+ */
+#if (!defined(BUILD2_AUTOCONF_MACOS) && !defined(__NetBSD__) && !defined(__sun)) && \
+    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 1) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(6, 0)
+#  define HAVE_ATAN2F 1
+#endif
+

From 67200128ed7d893830211980df17dec762d1abd4 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 13:22:00 +0200
Subject: [PATCH 005/166] Add HAVE_ATAN2

---
 .../libbuild2/autoconf/checks/HAVE_ATAN2.h        | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h
new file mode 100644
index 00000000..c79608e2
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h
@@ -0,0 +1,15 @@
+// HAVE_ATAN2 : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_ATAN2
+
+/* Since ANSI C89/ISO C99, OpenBSD 2.6
+ */
+#if (!defined(BUILD2_AUTOCONF_MACOS) && !defined(__NetBSD__) && !defined(__sun)) && \
+    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(6, 0)
+#  define HAVE_ATAN2 1
+#endif
+

From 11f05c5ca651d994b652d55cedbe1d12edf3b789 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 14:24:42 +0200
Subject: [PATCH 006/166] Add HAVE_BCRYPT

---
 .../libbuild2/autoconf/checks/HAVE_BCRYPT.h           | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_BCRYPT.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_BCRYPT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_BCRYPT.h
new file mode 100644
index 00000000..f31f286b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_BCRYPT.h
@@ -0,0 +1,11 @@
+// HAVE_BCRYPT : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_BCRYPT
+
+/* Since Version 3 AT&T UNIX, 4.3BSD (OpenBSD), Linux/glibc (no version info)
+ */
+#if defined(__OpenBSD__) || \
+    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(2, 0)
+#  define HAVE_BCRYPT 1
+#endif

From 26d6316f9b0c183852c8785c63ec27ca89c0a026 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 14:52:45 +0200
Subject: [PATCH 007/166] Add HAVE_CBRT

---
 .../libbuild2/autoconf/checks/HAVE_CBRT.h          | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
new file mode 100644
index 00000000..3f498992
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
@@ -0,0 +1,14 @@
+// HAVE_CBRT : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_CBRT
+
+/* Since C99, POSIX.1-2001, 4.3BSD, OpenBSD 2.1, FreeBSD 2.0, glibc 2.19, Windows
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    defined(_WIN32)
+#  define HAVE_CBRT 1
+#endif
+

From 41436a0c61cc7516ba74b4625917d0a9c9cafe15 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 14:59:59 +0200
Subject: [PATCH 008/166] Add HAVE_CBRTF

---
 .../libbuild2/autoconf/checks/HAVE_CBRTF.h        | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
new file mode 100644
index 00000000..f22dd709
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
@@ -0,0 +1,15 @@
+// HAVE_CBRTF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_CBRTF
+
+/* Since C99, POSIX.1-2001, 4.3BSD, OpenBSD 2.1, FreeBSD 2.0, glibc 2.19, Windows
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    defined(_WIN32)
+#  define HAVE_CBRTF 1
+#endif
+
+

From a6d2ca30cb747e6afe8c7c071d9a010fe17d9295 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 15:06:43 +0200
Subject: [PATCH 009/166] Define HAVE_CBRT and HAVE_CBRTF for mingw

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h  | 3 ++-
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h | 7 ++++---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
index 3f498992..5630e104 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
@@ -8,7 +8,8 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 0)  || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
-    defined(_WIN32)
+    defined(_WIN32) || \
+    defined(__MINGW32__)
 #  define HAVE_CBRT 1
 #endif
 
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
index f22dd709..abce72f2 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
@@ -4,11 +4,12 @@
 
 /* Since C99, POSIX.1-2001, 4.3BSD, OpenBSD 2.1, FreeBSD 2.0, glibc 2.19, Windows
  */
-#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)     || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 0)  || \
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 0) || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
-    defined(_WIN32)
+    defined(_WIN32) || \
+    defined(__MINGW32__)
 #  define HAVE_CBRTF 1
 #endif
 

From 76c04859c90cd423ef957180b95b5fdde4bb3c07 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 15:18:19 +0200
Subject: [PATCH 010/166] Add HAVE_CLOSESOCKET

---
 .../libbuild2/autoconf/checks/HAVE_CLOSESOCKET.h       | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CLOSESOCKET.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CLOSESOCKET.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CLOSESOCKET.h
new file mode 100644
index 00000000..8e7cf863
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CLOSESOCKET.h
@@ -0,0 +1,10 @@
+// HAVE_CLOSESOCKET
+
+#undef HAVE_CLOSESOCKET
+
+/* Windows, Mingw
+ */
+#if defined(_WIN32) || \
+    defined(__MINGW32__)
+#  define HAVE_CLOSESOCKET 1
+#endif

From 90700bb2099306c0b847f869c81da517049d430c Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 15:21:06 +0200
Subject: [PATCH 011/166] Add HAVE_COMMANDLINETOARGVW

---
 .../autoconf/checks/HAVE_COMMANDLINETOARGVW.h          | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COMMANDLINETOARGVW.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COMMANDLINETOARGVW.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COMMANDLINETOARGVW.h
new file mode 100644
index 00000000..3c518c99
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COMMANDLINETOARGVW.h
@@ -0,0 +1,10 @@
+// HAVE_COMMANDLINETOARGVW
+
+#undef HAVE_COMMANDLINETOARGVW
+
+/* Windows, Mingw
+ */
+#if defined(_WIN32) || \
+    defined(__MINGW32__)
+#  define HAVE_COMMANDLINETOARGVW 1
+#endif

From f338630b6a125a0b7a9703efccc3d9c757530016 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 15:26:07 +0200
Subject: [PATCH 012/166] Fix typo in HAVE_ACCESS

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h
index 153bdf9b..0aef0686 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h
@@ -13,8 +13,8 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
-    BUILD2_AUTOCONF_MINGW_PREREQ(2, 0) \
+    BUILD2_AUTOCONF_MINGW_PREREQ(2, 0) || \
     defined(BUILD2_AUTOCONF_MACOS) || \
-    ((defined(__sun) && defined(__SVR4))
+    (defined(__sun) && defined(__SVR4))
 #  define HAVE_ACCESS 1
 #endif

From 0010432d301f13702e8c6973826b64f6caa07891 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 18:30:37 +0200
Subject: [PATCH 013/166] Define HAVE_ATAN* for solaris.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h  | 3 ++-
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h
index c79608e2..dcd95b96 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h
@@ -9,7 +9,8 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
-    BUILD2_AUTOCONF_MINGW_PREREQ(6, 0)
+    BUILD2_AUTOCONF_MINGW_PREREQ(6, 0) || \
+    (defined(__sun) && defined(__SVR4))
 #  define HAVE_ATAN2 1
 #endif
 
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h
index c916f850..4001aae7 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h
@@ -9,7 +9,8 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 1) || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
-    BUILD2_AUTOCONF_MINGW_PREREQ(6, 0)
+    BUILD2_AUTOCONF_MINGW_PREREQ(6, 0) || \
+    (defined(__sun) && defined(__SVR4))
 #  define HAVE_ATAN2F 1
 #endif
 

From 8eaaf5c7dca3ca55a6a62d94931b0a5648cb996e Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 18:31:07 +0200
Subject: [PATCH 014/166] Define HAVE_CBRT* for solaris.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h  | 6 ++++--
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
index 5630e104..0a9bbf9a 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
@@ -2,14 +2,16 @@
 
 #undef HAVE_CBRT
 
-/* Since C99, POSIX.1-2001, 4.3BSD, OpenBSD 2.1, FreeBSD 2.0, glibc 2.19, Windows
+/* Since C99, POSIX.1-2001, 4.3BSD,
+ * OpenBSD 2.1, FreeBSD 2.0, glibc 2.19, Windows, Solaris
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)     || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 0)  || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
     defined(_WIN32) || \
-    defined(__MINGW32__)
+    defined(__MINGW32__) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_CBRT 1
 #endif
 
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
index abce72f2..ef43b196 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
@@ -2,14 +2,16 @@
 
 #undef HAVE_CBRTF
 
-/* Since C99, POSIX.1-2001, 4.3BSD, OpenBSD 2.1, FreeBSD 2.0, glibc 2.19, Windows
+/* Since C99, POSIX.1-2001, 4.3BSD,
+ * OpenBSD 2.1, FreeBSD 2.0, glibc 2.19, Windows, Solaris
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19) || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 0) || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
     defined(_WIN32) || \
-    defined(__MINGW32__)
+    defined(__MINGW32__) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_CBRTF 1
 #endif
 

From 3e69b09e7925cb9ea5262c7bbca19d51d791e6e3 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 18:31:32 +0200
Subject: [PATCH 015/166] Add HAVE_COPYSIGN

---
 .../libbuild2/autoconf/checks/HAVE_COPYSIGN.h | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h
new file mode 100644
index 00000000..fc29f94b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h
@@ -0,0 +1,21 @@
+// HAVE_COPYSIGN : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_COPYSIGN
+
+/*  Since glibc 2.19, BSD 4.3, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(_WIN32) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    (defined(__sun) && defined(__SVR4))
+#  define HAVE_COPYSIGN 1
+#endif

From 1b3a6b972caeba3a873d87cb87b3e814f6d34a43 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 18:39:56 +0200
Subject: [PATCH 016/166] Add HAVE_COPYSIGNF & HAVE_COPYSIGNL

---
 .../autoconf/checks/HAVE_COPYSIGNF.h          | 21 +++++++++++++++++++
 .../autoconf/checks/HAVE_COPYSIGNL.h          | 21 +++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h
new file mode 100644
index 00000000..b4f11952
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h
@@ -0,0 +1,21 @@
+// HAVE_COPYSIGNF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_COPYSIGNF
+
+/*  Since glibc 2.19, BSD 4.3, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(_WIN32) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    (defined(__sun) && defined(__SVR4))
+#  define HAVE_COPYSIGNF 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h
new file mode 100644
index 00000000..d0db2e63
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h
@@ -0,0 +1,21 @@
+// HAVE_COPYSIGNL : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_COPYSIGNL
+
+/*  Since glibc 2.19, BSD 4.3, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(_WIN32) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    (defined(__sun) && defined(__SVR4))
+#  define HAVE_COPYSIGNL 1
+#endif

From 06c4ccfb271057ee567046aa4a5abc1237fed8de Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 18:49:08 +0200
Subject: [PATCH 017/166] Update sun/solaris checks.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h  | 4 ++--
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h | 2 +-
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h
index fc29f94b..a73704d1 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h
@@ -6,7 +6,7 @@
 
 #undef HAVE_COPYSIGN
 
-/*  Since glibc 2.19, BSD 4.3, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
  *  POSIX.1, SVr4
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
@@ -16,6 +16,6 @@
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
     defined(_WIN32) || \
     defined(BUILD2_AUTOCONF_MACOS) || \
-    (defined(__sun) && defined(__SVR4))
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_COPYSIGN 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h
index b4f11952..0324b90f 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h
@@ -16,6 +16,6 @@
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
     defined(_WIN32) || \
     defined(BUILD2_AUTOCONF_MACOS) || \
-    (defined(__sun) && defined(__SVR4))
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_COPYSIGNF 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h
index d0db2e63..7bfc65ee 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h
@@ -6,7 +6,7 @@
 
 #undef HAVE_COPYSIGNL
 
-/*  Since glibc 2.19, BSD 4.3, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
  *  POSIX.1, SVr4
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
@@ -16,6 +16,6 @@
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
     defined(_WIN32) || \
     defined(BUILD2_AUTOCONF_MACOS) || \
-    (defined(__sun) && defined(__SVR4))
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_COPYSIGNL 1
 #endif

From 4bb26f74d0343822d3527cc5f9c3245978a639a1 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 18:51:16 +0200
Subject: [PATCH 018/166] Add HAVE_COS, HAVE_COSF & HAVE_COSL

---
 .../libbuild2/autoconf/checks/HAVE_COS.h      | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_COSF.h     | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_COSL.h     | 21 +++++++++++++++++++
 3 files changed, 63 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSF.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSL.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h
new file mode 100644
index 00000000..4a9d2db0
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h
@@ -0,0 +1,21 @@
+// HAVE_COS : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_COS
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS 10.10, Mingw-w64 2.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 10)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_COS 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSF.h
new file mode 100644
index 00000000..00602c38
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSF.h
@@ -0,0 +1,21 @@
+// HAVE_COSF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_COSF
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS 10.10, Mingw-w64 2.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 10)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_COSF 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSL.h
new file mode 100644
index 00000000..61305576
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSL.h
@@ -0,0 +1,21 @@
+// HAVE_COSL : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_COSL
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS 10.10, Mingw-w64 2.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 10)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_COSL 1
+#endif

From 65909b3ec3fc0c37cec91f1a12757c9c69bacf20 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 19:13:40 +0200
Subject: [PATCH 019/166] Add HAVE_DEV_IC_BT8XX_H

---
 .../libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h  | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h
new file mode 100644
index 00000000..c58372d6
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h
@@ -0,0 +1,12 @@
+// HAVE_DEV_IC_BT8XX_H : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_DEV_IC_BT8XX_H
+
+/* OpenBSD 2.3, FreeBSD 2.2, glibc 2.19, Windows, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 2) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199805) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5)
+#  define HAVE_DEV_IC_BT8XX_H 1
+#endif

From f6c259fbc7a149c67c7d7b88f4e72cd86ff6bea2 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 19:20:46 +0200
Subject: [PATCH 020/166] Add HAVE_DIRECT_H.h

---
 .../libbuild2/autoconf/checks/HAVE_DIRECT_H.h          | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DIRECT_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DIRECT_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DIRECT_H.h
new file mode 100644
index 00000000..64aef418
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DIRECT_H.h
@@ -0,0 +1,10 @@
+// HAVE_DIRECT_H
+
+#undef HAVE_DIRECT_H
+
+/* Windows, Mingw
+ */
+#if defined(_WIN32) || \
+    defined(__MINGW32__)
+#  define HAVE_DIRECT_H 1
+#endif

From 2f7ad17a2f9851e257aadbaf0d7f98a51fdab9d7 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 19:49:50 +0200
Subject: [PATCH 021/166] Fix typo in with OpenBSD year

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h  | 2 +-
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h | 4 ++--
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h | 2 +-
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h       | 2 +-
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSF.h      | 2 +-
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSL.h      | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h
index a73704d1..a0c373ef 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGN.h
@@ -11,7 +11,7 @@
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
-    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
     defined(_WIN32) || \
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h
index 0324b90f..94106e21 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNF.h
@@ -6,12 +6,12 @@
 
 #undef HAVE_COPYSIGNF
 
-/*  Since glibc 2.19, BSD 4.3, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
  *  POSIX.1, SVr4
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
-    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
     defined(_WIN32) || \
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h
index 7bfc65ee..d7dda8ca 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COPYSIGNL.h
@@ -11,7 +11,7 @@
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
-    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
     defined(_WIN32) || \
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h
index 4a9d2db0..bb4781a0 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h
@@ -11,7 +11,7 @@
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 10)    || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
-    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSF.h
index 00602c38..67a1e20f 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSF.h
@@ -11,7 +11,7 @@
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 10)    || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
-    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSL.h
index 61305576..bcbe823e 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSL.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COSL.h
@@ -11,7 +11,7 @@
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 10)    || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
-    BUILD2_AUTOCONF_OPENBSD_PREREQ(199518) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \

From 04c226f234e259c2776622c5082c616bc3595db0 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 19:50:07 +0200
Subject: [PATCH 022/166] Add HAVE_DIRENT_H

---
 .../libbuild2/autoconf/checks/HAVE_DIRENT_H.h | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DIRENT_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DIRENT_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DIRENT_H.h
new file mode 100644
index 00000000..63ea11c7
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DIRENT_H.h
@@ -0,0 +1,20 @@
+// HAVE_DIRENT_H : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_DIRENT_H
+
+/*  Since
+ * 4.2BSD, FreeBSD 2.2, OpenBSD 2.2, NetBSD 6.0, MacOS 10.10, Mingw-w64 2.0
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 10)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199712) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(6, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_DIRENT_H 1
+#endif

From b9b9eb6473216f11a23478c31a605671c1c14e5a Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 19:52:55 +0200
Subject: [PATCH 023/166] Add HAVE_DOS_PATHS

---
 .../libbuild2/autoconf/checks/HAVE_DOS_PATHS.h           | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DOS_PATHS.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DOS_PATHS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DOS_PATHS.h
new file mode 100644
index 00000000..8f79da7c
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DOS_PATHS.h
@@ -0,0 +1,9 @@
+// HAVE_DOS_PATHS
+
+#undef HAVE_DOS_PATHS
+
+/* Windows
+ */
+#if defined(_WIN32)
+#  define HAVE_DOS_PATHS 1
+#endif

From 0a132b16eb774c2f1bfc7e4adccec3c2600cce8a Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 19:59:30 +0200
Subject: [PATCH 024/166] Add HAVE_DXGIDEBUG_H

---
 .../libbuild2/autoconf/checks/HAVE_DXGIDEBUG_H.h       | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DXGIDEBUG_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DXGIDEBUG_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DXGIDEBUG_H.h
new file mode 100644
index 00000000..bddb4d40
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DXGIDEBUG_H.h
@@ -0,0 +1,10 @@
+// HAVE_DXGIDEBUG_H
+
+#undef HAVE_DXGIDEBUG_H
+
+/* Windows, Mingw
+ */
+#if defined(_WIN32) || \
+    defined(__MINGW32__)
+#  define HAVE_DXGIDEBUG_H 1
+#endif

From 1e1a92766bb365ffadb01244dc8ca0588d895735 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 20:01:11 +0200
Subject: [PATCH 025/166] Add HAVE_DXVA_H

---
 .../libbuild2/autoconf/checks/HAVE_DXVA_H.h            | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DXVA_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DXVA_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DXVA_H.h
new file mode 100644
index 00000000..554a73fa
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DXVA_H.h
@@ -0,0 +1,10 @@
+// HAVE_DXVA_H
+
+#undef HAVE_DXVA_H
+
+/* Windows, Mingw
+ */
+#if defined(_WIN32) || \
+    defined(__MINGW32__)
+#  define HAVE_DXVA_H 1
+#endif

From 26d3c69e4c3b40a352dc3af0b7edc07c0962aab6 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 20:13:18 +0200
Subject: [PATCH 026/166] Add HAVE_ERF

---
 .../libbuild2/autoconf/checks/HAVE_ERF.h         | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ERF.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ERF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ERF.h
new file mode 100644
index 00000000..1d572657
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ERF.h
@@ -0,0 +1,16 @@
+// HAVE_ERF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_ERF
+
+/* Since C99, POSIX.1-2001, 4.3BSD,
+ * OpenBSD 2.1, FreeBSD 1.0, NetBSD 1.3, glibc 2.19, Windows, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_ERF 1
+#endif

From fa3e16b9f6589ecd7f5e749d5c47da3e4b274380 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 20:23:35 +0200
Subject: [PATCH 027/166] Add HAVE_WINDOWS_H

---
 .../libbuild2/autoconf/checks/HAVE_WINDOWS_H.h         | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINDOWS_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINDOWS_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINDOWS_H.h
new file mode 100644
index 00000000..3bf3c7ae
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINDOWS_H.h
@@ -0,0 +1,10 @@
+// HAVE_WINDOWS_H
+
+#undef HAVE_WINDOWS_H
+
+/* Windows, Mingw
+ */
+#if defined(_WIN32) || \
+    defined(__MINGW32__)
+#  define HAVE_WINDOWS_H 1
+#endif

From 2e1d0ce23864e6e2421fd85357f7e819cf9c58d3 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 20:26:04 +0200
Subject: [PATCH 028/166] Add HAVE_WINSOCK2_H

---
 .../libbuild2/autoconf/checks/HAVE_WINSOCK2_H.h        | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINSOCK2_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINSOCK2_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINSOCK2_H.h
new file mode 100644
index 00000000..390b87fd
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINSOCK2_H.h
@@ -0,0 +1,10 @@
+// HAVE_WINSOCK2_H
+
+#undef HAVE_WINSOCK2_H
+
+/* Windows, Mingw
+ */
+#if defined(_WIN32) || \
+    defined(__MINGW32__)
+#  define HAVE_WINSOCK2_H 1
+#endif

From 0aa4903f4e400f0bbda1218e3f1b885ed8962baa Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 20:38:28 +0200
Subject: [PATCH 029/166] Add HAVE_GETHRTIME

---
 .../libbuild2/autoconf/checks/HAVE_GETHRTIME.h           | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETHRTIME.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETHRTIME.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETHRTIME.h
new file mode 100644
index 00000000..a7ae0066
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETHRTIME.h
@@ -0,0 +1,9 @@
+// HAVE_GETHRTIME
+
+#undef HAVE_GETHRTIME
+
+/* Solaris
+ */
+#if ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_GETHRTIME 1
+#endif

From a5662ab30e8e7fec7a493199e7d7c0268a74a40a Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 20:46:34 +0200
Subject: [PATCH 030/166] Add HAVE_GETRUSAGE.h

---
 .../libbuild2/autoconf/checks/HAVE_GETRUSAGE.h    | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETRUSAGE.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETRUSAGE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETRUSAGE.h
new file mode 100644
index 00000000..1cd2334b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETRUSAGE.h
@@ -0,0 +1,15 @@
+// HAVE_GETRUSAGE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_GETRUSAGE
+
+/* Since POSIX.1-2001, SVr4, 4.3BSD,
+ * OpenBSD 2.1, FreeBSD 1.0, NetBSD 1.3, glibc 2.33, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 33)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_GETRUSAGE 1
+#endif

From d29e704e3cb61359b84644cad361eafd29d694dc Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 20:52:43 +0200
Subject: [PATCH 031/166] Add HAVE_GLOB

---
 .../libbuild2/autoconf/checks/HAVE_GLOB.h         | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GLOB.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GLOB.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GLOB.h
new file mode 100644
index 00000000..a1c4411b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GLOB.h
@@ -0,0 +1,15 @@
+// HAVE_GLOB : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_GLOB
+
+/* Since POSIX.2,
+ * OpenBSD 2.1, FreeBSD 1.0, NetBSD 1.3, glibc 2.0, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_GLOB 1
+#endif

From 25207018f5d2c697af767b0fbd9b91f48cf1d4e6 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 21:02:58 +0200
Subject: [PATCH 032/166] Add HAVE_GMTIME_R

---
 .../libbuild2/autoconf/checks/HAVE_GMTIME_R.h      | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h
new file mode 100644
index 00000000..72c69fda
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h
@@ -0,0 +1,14 @@
+// HAVE_GMTIME_R : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_GMTIME_R
+
+/* Since POSIX.2,
+ * OpenBSD 2.1, FreeBSD 1.0, NetBSD 1.3, glibc 2.0, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_GMTIME_R 1
+#endif

From 35f4af9e27a56bb61899011c77d226bddcf65887 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 21:40:57 +0200
Subject: [PATCH 033/166] Add HAVE_ISINF|FINITE|NORMAL|NAN

---
 .../libbuild2/autoconf/checks/HAVE_ISFINITE.h | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_ISINF.h    | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_ISNAN.h    | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_ISNORMAL.h | 21 +++++++++++++++++++
 4 files changed, 84 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISFINITE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISINF.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISNAN.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISNORMAL.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISFINITE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISFINITE.h
new file mode 100644
index 00000000..839975b4
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISFINITE.h
@@ -0,0 +1,21 @@
+// HAVE_ISFINITE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_ISFINITE
+
+/* Since Linux/glibc 2.0, FreeBSD 5.1, OpenBSD 4.4, NetBSD 1.3, Mac OS, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 1)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200910) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3)    || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)    || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0)     || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)                        || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_ISFINITE 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISINF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISINF.h
new file mode 100644
index 00000000..fee12281
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISINF.h
@@ -0,0 +1,21 @@
+// HAVE_ISINF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_ISINF
+
+/* Since Linux/glibc 2.0, FreeBSD 5.1, OpenBSD 4.4, NetBSD 1.3, Mac OS, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 1)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200910) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3)    || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)    || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0)     || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)                        || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_ISINF 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISNAN.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISNAN.h
new file mode 100644
index 00000000..b32e909f
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISNAN.h
@@ -0,0 +1,21 @@
+// HAVE_ISNAN : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_ISNAN
+
+/* Since Linux/glibc 2.0, FreeBSD 5.1, OpenBSD 4.4, NetBSD 1.3, Mac OS, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 1)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200910) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3)    || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)    || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0)     || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)                        || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_ISNAN 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISNORMAL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISNORMAL.h
new file mode 100644
index 00000000..570661ea
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISNORMAL.h
@@ -0,0 +1,21 @@
+// HAVE_ISNORMAL : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_ISNORMAL
+
+/* Since Linux/glibc 2.0, FreeBSD 5.1, OpenBSD 4.4, NetBSD 1.3, Mac OS, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 1)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200910) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3)    || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)    || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0)     || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)                        || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_ISNORMAL 1
+#endif

From 4e1857411c0622067b79d6515aa47a54486c6703 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 22:51:45 +0200
Subject: [PATCH 034/166] Add HAVE_LSX & HAVE_LASX

---
 .../libbuild2/autoconf/checks/HAVE_LASX.h          | 14 ++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_LSX.h           | 10 ++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LASX.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSX.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LASX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LASX.h
new file mode 100644
index 00000000..bbfe30f4
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LASX.h
@@ -0,0 +1,14 @@
+// HAVE_LASX
+
+#undef HAVE_LASX
+
+/* GCC, Clang: -mlasx (https://gcc.gnu.org/onlinedocs/gcc/LoongArch-Options.html)
+ * Supported on LoongArch (https://github.com/loongson/la-toolchain-conventions?tab=readme-ov-file#cc-preprocessor-built-in-macro-definitions)
+ */
+#ifdef __loongarch_asx
+#  define HAVE_LASX 1
+// LASX implies LSX
+#  ifndef HAVE_LSX
+#    define HAVE_LSX 1
+#  endif
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSX.h
new file mode 100644
index 00000000..1d696142
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSX.h
@@ -0,0 +1,10 @@
+// HAVE_LSX
+
+#undef HAVE_LSX
+
+/* GCC, Clang: -mlsx (https://gcc.gnu.org/onlinedocs/gcc/LoongArch-Options.html)
+ * Supported on LoongArch (https://github.com/loongson/la-toolchain-conventions?tab=readme-ov-file#cc-preprocessor-built-in-macro-definitions)
+ */
+#ifdef __loongarch_sx
+#  define HAVE_LSX 1
+#endif

From 2b932e565e2765f3c3bc4d58ffe852227df3ca1d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 23:33:34 +0200
Subject: [PATCH 035/166] Add HAVE_INET_ATON

---
 .../libbuild2/autoconf/checks/HAVE_INET_ATON.h   | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INET_ATON.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INET_ATON.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INET_ATON.h
new file mode 100644
index 00000000..aee1dd8d
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INET_ATON.h
@@ -0,0 +1,16 @@
+// HAVE_INET_ATON : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_INET_ATON
+/* Since BSD 4.2 (1983)
+ */
+#if defined(__linux__)   || \
+    defined(__FreeBSD__) || \
+    defined(__OpenBSD__) || \
+    defined(__NetBSD__)  || \
+    defined(BUILD2_AUTOCONF_MACOS)
+#  define HAVE_INET_ATON 1
+#endif

From e0a367e5e9dbd9337570bffec09d76065041dc57 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 23:45:27 +0200
Subject: [PATCH 036/166] Add HAVE_GETOPT

---
 .../libbuild2/autoconf/checks/HAVE_GETOPT.h        | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETOPT.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETOPT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETOPT.h
new file mode 100644
index 00000000..d7b07a1a
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETOPT.h
@@ -0,0 +1,14 @@
+// HAVE_GETOPT : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_GETOPT
+
+/* Since POSIX.2, 4.3BSD
+ * OpenBSD 2.1, FreeBSD 1.0, NetBSD 1.3, glibc 2.0, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_GETOPT 1
+#endif

From b72c7d5cd7be5690f6154e1b49cacc6705b0ad9d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 23:55:33 +0200
Subject: [PATCH 037/166] Fix typo in HAVE_COS

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h
index bb4781a0..410c1d10 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_COS.h
@@ -9,7 +9,7 @@
 /*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS 10.10, Mingw-w64 2.0
  *  POSIX.1, SVr4
  */
-#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 10)    || \
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \

From 0ddedadf20e429889142b3c87426db9394b8dabe Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 22 Aug 2024 23:59:41 +0200
Subject: [PATCH 038/166] Add HAVE_HYPOT, HAVE_HYPOTF & HAVE_CABS

---
 .../libbuild2/autoconf/checks/HAVE_CABS.h     | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_HYPOT.h    | 20 ++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_HYPOTF.h   | 20 ++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CABS.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOT.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOTF.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CABS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CABS.h
new file mode 100644
index 00000000..7fdab08f
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CABS.h
@@ -0,0 +1,21 @@
+// HAVE_CABS : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_CABS
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_CABS 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOT.h
new file mode 100644
index 00000000..edb7cd8a
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOT.h
@@ -0,0 +1,20 @@
+// HAVE_HYPOT : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_HYPOT
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_HYPOT 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOTF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOTF.h
new file mode 100644
index 00000000..3ad52dc1
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOTF.h
@@ -0,0 +1,20 @@
+// HAVE_HYPOTF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_HYPOTF
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_HYPOTF 1
+#endif

From 867d71a9b8e6ff368054b99f31fae5acd30d06d2 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 23 Aug 2024 00:11:15 +0200
Subject: [PATCH 039/166] Add HAVE_LOG2[F] & HAVE_LOG10[F]

---
 .../libbuild2/autoconf/checks/HAVE_LOG10.h    | 19 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_LOG10F.h   | 19 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_LOG2.h     | 19 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_LOG2F.h    | 19 +++++++++++++++++++
 4 files changed, 76 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10F.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2F.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10.h
new file mode 100644
index 00000000..888854db
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10.h
@@ -0,0 +1,19 @@
+// HAVE_LOG10 : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LOG10
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS)
+#  define HAVE_LOG10 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10F.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10F.h
new file mode 100644
index 00000000..0145f58d
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10F.h
@@ -0,0 +1,19 @@
+// HAVE_LOG10F : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LOG10F
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS)
+#  define HAVE_LOG10F 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2.h
new file mode 100644
index 00000000..4f0d02d1
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2.h
@@ -0,0 +1,19 @@
+// HAVE_LOG2 : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LOG2
+
+/*  Since glibc 2.1, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 2.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS)
+#  define HAVE_LOG2 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2F.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2F.h
new file mode 100644
index 00000000..9c1698b5
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2F.h
@@ -0,0 +1,19 @@
+// HAVE_LOG2F : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LOG2F
+
+/*  Since glibc 2.1, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS)
+#  define HAVE_LOG2F 1
+#endif

From 009d3c5105c93749470c2f99946356a657846fe0 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 23 Aug 2024 01:15:19 +0200
Subject: [PATCH 040/166] Add HAVE_POW[FL]

---
 .../libbuild2/autoconf/checks/HAVE_POW.h      | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_POWF.h     | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_POWL.h     | 21 +++++++++++++++++++
 3 files changed, 63 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POW.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POWF.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POWL.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POW.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POW.h
new file mode 100644
index 00000000..cd6fbdfb
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POW.h
@@ -0,0 +1,21 @@
+// HAVE_POW : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_POW
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_POW 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POWF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POWF.h
new file mode 100644
index 00000000..44951127
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POWF.h
@@ -0,0 +1,21 @@
+// HAVE_POWF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_POWF
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_POWF 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POWL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POWL.h
new file mode 100644
index 00000000..bfb73134
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POWL.h
@@ -0,0 +1,21 @@
+// HAVE_POWL : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_POWL
+
+/*  Since glibc 2.19, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_POWL 1
+#endif

From 10d0a0b78ede12b0f2f9a2ca48cfd1ef68876951 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 23 Aug 2024 01:18:54 +0200
Subject: [PATCH 041/166] Add HAVE_ROUND[FL]

---
 .../libbuild2/autoconf/checks/HAVE_ROUND.h    | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_ROUNDF.h   | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_ROUNDL.h   | 21 +++++++++++++++++++
 3 files changed, 63 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUND.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUNDF.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUNDL.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUND.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUND.h
new file mode 100644
index 00000000..9a47d004
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUND.h
@@ -0,0 +1,21 @@
+// HAVE_ROUND : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_ROUND
+
+/*  Since glibc 2.1, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_ROUND 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUNDF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUNDF.h
new file mode 100644
index 00000000..88949be2
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUNDF.h
@@ -0,0 +1,21 @@
+// HAVE_ROUNDF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_ROUNDF
+
+/*  Since glibc 2.1, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_ROUNDF 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUNDL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUNDL.h
new file mode 100644
index 00000000..962fa08a
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ROUNDL.h
@@ -0,0 +1,21 @@
+// HAVE_ROUNDL : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_ROUNDL
+
+/*  Since glibc 2.1, 4.3BSD, FreeBSD 1.0, OpenBSD 2.0, NetBSD 1.0, MacOS, Mingw-w64 1.0
+ *  POSIX.1, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_ROUNDL 1
+#endif

From 861fba850d0f27165be275b0be3fc608e39ee28a Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 11:17:20 +0200
Subject: [PATCH 042/166] Add HAVE_ARMV8

---
 .../libbuild2/autoconf/checks/HAVE_ARMV8.h          | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARMV8.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARMV8.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARMV8.h
new file mode 100644
index 00000000..47cf30ce
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARMV8.h
@@ -0,0 +1,13 @@
+// HAVE_ARMV8
+
+#undef HAVE_ARMV8
+
+/* Based on:
+ * https://developer.arm.com/documentation/dui0774/g/chr1383660321827
+ * https://developer.arm.com/documentation/101028/0012/5--Feature-test-macros
+ */
+#if defined(__ARM_ARCH)
+#  if __ARM_ARCH == 8
+#    define HAVE_ARMV8 1
+#  endif
+#endif

From d37571a30c44294871895ef40a01d48f29009038 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 14:39:12 +0200
Subject: [PATCH 043/166] Add HAVE_AS_ARCHEXT_DOTPROD HAVE_AS_ARCHEXT_I8MM
 HAVE_AS_ARCH_DIRECTIVE HAVE_AS_DN_DIRECTIVE HAVE_AS_FPU_DIRECTIVE
 HAVE_AS_FUNC_DIRECTIVE

---
 .../autoconf/checks/HAVE_AS_ARCHEXT_DOTPROD.h       | 10 ++++++++++
 .../autoconf/checks/HAVE_AS_ARCHEXT_I8MM.h          | 13 +++++++++++++
 .../autoconf/checks/HAVE_AS_ARCH_DIRECTIVE.h        | 10 ++++++++++
 .../autoconf/checks/HAVE_AS_DN_DIRECTIVE.h          | 11 +++++++++++
 .../autoconf/checks/HAVE_AS_FPU_DIRECTIVE.h         | 13 +++++++++++++
 .../autoconf/checks/HAVE_AS_FUNC_DIRECTIVE.h        | 10 ++++++++++
 6 files changed, 67 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCHEXT_DOTPROD.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCHEXT_I8MM.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCH_DIRECTIVE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_DN_DIRECTIVE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FPU_DIRECTIVE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FUNC_DIRECTIVE.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCHEXT_DOTPROD.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCHEXT_DOTPROD.h
new file mode 100644
index 00000000..e4bfa79e
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCHEXT_DOTPROD.h
@@ -0,0 +1,10 @@
+// HAVE_AS_ARCHEXT_DOTPROD
+
+#undef HAVE_AS_ARCHEXT_DOTPROD
+
+/* Assembly feature.
+ * Available in Cortex-A75, Cortex-A55, and Neoverse N1 and later.
+ */
+#if defined(__ARM_FEATURE_DOTPROD)
+#  define HAVE_AS_ARCHEXT_DOTPROD 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCHEXT_I8MM.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCHEXT_I8MM.h
new file mode 100644
index 00000000..b59c4832
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCHEXT_I8MM.h
@@ -0,0 +1,13 @@
+// HAVE_AS_ARCHEXT_I8MM
+
+#undef HAVE_AS_ARCHEXT_I8MM
+
+/* Assembly feature.
+ * Available in ARMV8 and later.
+ * See: https://developer.arm.com/documentation/101754/0622/armclang-Reference/Other-Compiler-specific-Features/Supported-architecture-features/Matrix-Multiplication-extension?lang=en
+ */
+#if defined(__ARM_ARCH)
+#  if __ARM_ARCH >= 8
+#    define HAVE_AS_ARCHEXT_I8MM 1
+#  endif
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCH_DIRECTIVE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCH_DIRECTIVE.h
new file mode 100644
index 00000000..325e7596
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_ARCH_DIRECTIVE.h
@@ -0,0 +1,10 @@
+// HAVE_AS_ARCH_DIRECTIVE
+
+#undef HAVE_AS_ARCH_DIRECTIVE
+
+/* Assembly directive '.arch'
+ * AFAICS this exists on ARM since very old versions.
+ */
+#if defined(__ARM_ARCH)
+#  define HAVE_AS_ARCH_DIRECTIVE 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_DN_DIRECTIVE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_DN_DIRECTIVE.h
new file mode 100644
index 00000000..4bdf2e31
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_DN_DIRECTIVE.h
@@ -0,0 +1,11 @@
+// HAVE_AS_DN_DIRECTIVE
+
+#undef HAVE_AS_DN_DIRECTIVE
+
+/* Assembly feature.
+ * Available in ARMV8 and later.
+ * See: https://sourceware.org/binutils/docs/as/ARM-Directives.html
+ */
+#if defined(__ARM_NEON) || defined(__ARM_NEON__)
+#  define HAVE_AS_DN_DIRECTIVE 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FPU_DIRECTIVE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FPU_DIRECTIVE.h
new file mode 100644
index 00000000..8ce2d5e3
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FPU_DIRECTIVE.h
@@ -0,0 +1,13 @@
+// HAVE_AS_FPU_DIRECTIVE
+
+#undef HAVE_AS_FPU_DIRECTIVE
+
+/* Assembly feature.
+ * Available in ARMV8 and later.
+ * See: https://sourceware.org/binutils/docs/as/ARM-Directives.html
+ */
+#if defined(__ARM_ARCH)
+#  if __ARM_ARCH >= 8
+#    define HAVE_AS_FPU_DIRECTIVE 1
+#  endif
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FUNC_DIRECTIVE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FUNC_DIRECTIVE.h
new file mode 100644
index 00000000..2ba1a1c2
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FUNC_DIRECTIVE.h
@@ -0,0 +1,10 @@
+// HAVE_AS_FUNC_DIRECTIVE
+
+#undef HAVE_AS_FUNC_DIRECTIVE
+
+/* Assembly directive '.func'/'.function'
+ * AFAICS this exists on ARM since very old versions.
+ */
+#if defined(__ARM_ARCH)
+#  define HAVE_AS_FUNC_DIRECTIVE 1
+#endif

From 0bcb6171c6ce9bbcb648bd98e94387cb039cf396 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 15:03:07 +0200
Subject: [PATCH 044/166] Add HAVE_AVX512

---
 .../libbuild2/autoconf/checks/HAVE_AVX512.h   | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AVX512.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AVX512.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AVX512.h
new file mode 100644
index 00000000..e47f1f51
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AVX512.h
@@ -0,0 +1,22 @@
+// HAVE_AVX512
+
+#undef HAVE_AVX512
+
+/* GCC, Clang: -march={knl,skylake-avx512, ...}
+ *
+ * MSVC: /arch:AVX512
+ *
+ * This code is based on
+ * * https://www.intel.com/content/www/us/en/docs/dpcpp-cpp-compiler/developer-guide-reference/2023-1/additional-predefined-macros.html
+ * * https://learn.microsoft.com/en-us/cpp/preprocessor/predefined-macros?view=msvc-170
+ */
+
+#if defined(__AVX512CD__) || \
+    defined(__AVX512ER__) || \
+    defined(__AVX512F__)  || \
+    defined(__AVX512PF__) || \
+    defined(__AVX512BW__) || \
+    defined(__AVX512DQ__) || \
+    defined(__AVX512VL__)
+#  define HAVE_AVX512 1
+#endif

From c4caa91dea46c200fb594582284b84dec314c16f Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 15:13:46 +0200
Subject: [PATCH 045/166] Add HAVE_ASM_HWPROBE_H

---
 .../libbuild2/autoconf/checks/HAVE_ASM_HWPROBE_H.h     | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_HWPROBE_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_HWPROBE_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_HWPROBE_H.h
new file mode 100644
index 00000000..128b7cc8
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_HWPROBE_H.h
@@ -0,0 +1,10 @@
+// HAVE_ASM_HWPROBE_H
+
+#undef HAVE_ASM_HWPROBE_H
+
+/* AFAICS this is exclusively a Risc-V thing.
+ */
+
+#if defined(__riscv)
+#  define HAVE_ASM_HWPROBE_H 1
+#endif

From cfd932599242d43c6444b076fbfca018728fda86 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 15:30:13 +0200
Subject: [PATCH 046/166] Add HAVE_ASM_TYPES_H

---
 .../libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h         | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h
new file mode 100644
index 00000000..fbda0ee6
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h
@@ -0,0 +1,9 @@
+// HAVE_ASM_TYPES_H
+
+#undef HAVE_ASM_TYPES_H
+
+/* Since Linux 2.2.
+ */
+#if defined(__linux__)
+#  define HAVE_ASM_TYPES_H 1
+#endif

From 44d61d19520c58ce495732074a8a0a16298f0931 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 15:41:29 +0200
Subject: [PATCH 047/166] Add HAVE_AS_OBJECT_ARCH_DIRECTIVE

---
 .../autoconf/checks/HAVE_AS_OBJECT_ARCH_DIRECTIVE.h    | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_OBJECT_ARCH_DIRECTIVE.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_OBJECT_ARCH_DIRECTIVE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_OBJECT_ARCH_DIRECTIVE.h
new file mode 100644
index 00000000..1991f11d
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_OBJECT_ARCH_DIRECTIVE.h
@@ -0,0 +1,10 @@
+// HAVE_AS_OBJECT_ARCH_DIRECTIVE
+
+#undef HAVE_AS_OBJECT_ARCH_DIRECTIVE
+
+/* Assembly directive '.object_arch'
+ * AFAICS this exists on ARM since very old versions.
+ */
+#if defined(__ARM_ARCH)
+#  define HAVE_AS_OBJECT_ARCH_DIRECTIVE 1
+#endif

From 0d6e596f391844e6b8a1438f5e08c48cc9686c5a Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 16:00:14 +0200
Subject: [PATCH 048/166] Add HAVE_AVX512ICL

---
 .../libbuild2/autoconf/checks/HAVE_AVX512ICL.h    | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AVX512ICL.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AVX512ICL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AVX512ICL.h
new file mode 100644
index 00000000..c8d3f95d
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AVX512ICL.h
@@ -0,0 +1,15 @@
+// HAVE_AVX512ICL
+
+#undef HAVE_AVX512ICL
+
+/* GCC, Clang: -m={avx512vbmi, avx512vbmi2, avx512vnni, avx512bf16, avx512fp16}
+ *
+ * MSVC: /arch:AVX512
+ *
+ * Note: This refers to additional AVX-512 extensions that were introduced starting with Ice Lake (ICL)
+ */
+
+#if defined(__AVX512VBMI__) || \
+    defined(__AVX512VNNI__)
+#  define HAVE_AVX512ICL 1
+#endif

From 2b492a1fbf59c209b16744871209053de09dde30 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 16:04:22 +0200
Subject: [PATCH 049/166] Add HAVE_DCBZ

---
 .../libbuild2/autoconf/checks/HAVE_DCBZL.h               | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DCBZL.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DCBZL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DCBZL.h
new file mode 100644
index 00000000..dc6230c6
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DCBZL.h
@@ -0,0 +1,9 @@
+// HAVE_DCBZL
+
+#undef HAVE_DCBZL
+
+/* Since PowerPC 603 processor (mid-1990s).
+ */
+#if defined(__powerpc__) || defined(__ppc__) || defined(__PPC__)
+#  define HAVE_DCBZL 1
+#endif

From 85b8b9a43f0323503bcfcf82bbdd10ef65546f7c Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 16:36:41 +0200
Subject: [PATCH 050/166] Add HAVE_ASM_EBP

---
 .../libbuild2/autoconf/checks/HAVE_ASM_EBP.h       | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
new file mode 100644
index 00000000..d6326224
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
@@ -0,0 +1,14 @@
+// HAVE_ASM_EBP
+
+#undef HAVE_ASM_EBP
+
+/* x86 excluding ARM, PowerPC, MIPS & RISC-V.
+ */
+#if defined(__i386__)
+#  if !defined(__arm__) && !defined(__powerpc__) && \
+      !defined(__ppc__) && \
+      !defined(__mips__) && \
+      !defined(__riscv__) && !defined(__riscv)
+#    define HAVE_ASM_EBP 1
+#  endif
+#endif

From e4c8c20acecd3f308d6fed14262059bd94bff80c Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 16:42:34 +0200
Subject: [PATCH 051/166] Add HAVE_ASM_EBX

---
 .../libbuild2/autoconf/checks/HAVE_ASM_EBX.h       | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
new file mode 100644
index 00000000..5e56ee7f
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
@@ -0,0 +1,14 @@
+// HAVE_ASM_EBX
+
+#undef HAVE_ASM_EBX
+
+/* x86 excluding ARM, PowerPC, MIPS & RISC-V.
+ */
+#if defined(__i386__)
+#  if !defined(__arm__) && !defined(__powerpc__) && \
+      !defined(__ppc__) && \
+      !defined(__mips__) && \
+      !defined(__riscv__) && !defined(__riscv)
+#    define HAVE_ASM_EBX 1
+#  endif
+#endif

From 9de48e95b36e5ce625216d68ea2627a7c396b345 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 16:53:24 +0200
Subject: [PATCH 052/166] Add HAVE_EXP[2F]

---
 .../libbuild2/autoconf/checks/HAVE_EXP.h      | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_EXP2.h     | 20 ++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_EXP2F.h    | 21 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_EXPF.h     | 21 +++++++++++++++++++
 4 files changed, 83 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP2.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP2F.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXPF.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP.h
new file mode 100644
index 00000000..160d92d0
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP.h
@@ -0,0 +1,21 @@
+// HAVE_EXP : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_EXP
+
+/*  Since glibc 2.1, 4.3BSD, FreeBSD 2.3, OpenBSD 4.4, NetBSD 6.0, MacOS v?, Mingw-w64 2.0
+ *        Windows.
+ *  NOTE: This just replicates HAVE_EXP2.h
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 3) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200811) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(6, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(__APPLE__) || \
+    defined(_WIN32)
+#  define HAVE_EXP 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP2.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP2.h
new file mode 100644
index 00000000..4d1e4949
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP2.h
@@ -0,0 +1,20 @@
+// HAVE_EXP2 : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_EXP2
+
+/*  Since glibc 2.1, 4.3BSD, FreeBSD 2.3, OpenBSD 4.4, NetBSD 6.0, MacOS v?, Mingw-w64 2.0
+ *        Windows.
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 3) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200811) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(6, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(__APPLE__) || \
+    defined(_WIN32)
+#  define HAVE_EXP2 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP2F.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP2F.h
new file mode 100644
index 00000000..220d4dba
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXP2F.h
@@ -0,0 +1,21 @@
+// HAVE_EXP2F : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_EXP2F
+
+/*  Since glibc 2.1, 4.3BSD, FreeBSD 2.3, OpenBSD 4.4, NetBSD 6.0, MacOS v?, Mingw-w64 2.0
+ *        Windows.
+ *  NOTE: This just replicates HAVE_EXP2.h
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 3) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200811) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(6, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(__APPLE__) || \
+    defined(_WIN32)
+#  define HAVE_EXP2F 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXPF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXPF.h
new file mode 100644
index 00000000..73b368e9
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_EXPF.h
@@ -0,0 +1,21 @@
+// HAVE_EXPF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_EXPF
+
+/*  Since glibc 2.1, 4.3BSD, FreeBSD 2.3, OpenBSD 4.4, NetBSD 6.0, MacOS v?, Mingw-w64 2.0
+ *        Windows.
+ *  NOTE: This just replicates HAVE_EXP2.h
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 3) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200811) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(6, 0) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(__APPLE__) || \
+    defined(_WIN32)
+#  define HAVE_EXPF 1
+#endif

From 694cb74aaf27a7d29b46250fec156387d7114cd1 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 17:10:50 +0200
Subject: [PATCH 053/166] Add HAVE_MKSTEMP

---
 .../libbuild2/autoconf/checks/HAVE_MKSTEMP.h   | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MKSTEMP.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MKSTEMP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MKSTEMP.h
new file mode 100644
index 00000000..a56bbde5
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MKSTEMP.h
@@ -0,0 +1,18 @@
+// HAVE_MKSTEMP : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_MKSTEMP
+
+/*  Since glibc 2.1, 4.3BSD, FreeBSD 1.0, OpenBSD 2.2, NetBSD 1.3, MacOS v?, Mingw-w64 2.0
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199712) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
+    defined(__APPLE__)
+#  define HAVE_MKSTEMP 1
+#endif

From 6f2d2fad3b200db6db18d7f173c1e1ed79439a3c Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 17:18:36 +0200
Subject: [PATCH 054/166] Add HAVE_FMA[3|4]

---
 .../libbuild2/autoconf/checks/HAVE_FMA3.h             | 11 +++++++++++
 .../libbuild2/autoconf/checks/HAVE_FMA4.h             | 11 +++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA3.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA4.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA3.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA3.h
new file mode 100644
index 00000000..98f6403c
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA3.h
@@ -0,0 +1,11 @@
+// HAVE_FMA3
+
+#undef HAVE_FMA3
+
+/* GCC, Clang: -mfma
+ *
+ * MSVC: /arch:AVX2
+ */
+#ifdef __FMA__
+#  define HAVE_FMA3 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA4.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA4.h
new file mode 100644
index 00000000..459d2268
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA4.h
@@ -0,0 +1,11 @@
+// HAVE_FMA4
+
+#undef HAVE_FMA4
+
+/* GCC, Clang: -mfma4
+ *
+ * MSVC: /arch:AVX2
+ */
+#ifdef __FMA4__
+#  define HAVE_FMA4 1
+#endif

From 4edfcc0bde87bc1571f229c69cdb513922f91d18 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 17:29:04 +0200
Subject: [PATCH 055/166] Add HAVE_I8MM & HAVE_I686

---
 .../libbuild2/autoconf/checks/HAVE_I686.h              |  9 +++++++++
 .../libbuild2/autoconf/checks/HAVE_I8MM.h              | 10 ++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I686.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I8MM.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I686.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I686.h
new file mode 100644
index 00000000..96cd0fa9
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I686.h
@@ -0,0 +1,9 @@
+// HAVE_I686
+
+#undef HAVE_I686
+
+/* Defined for i686 processors (Pentium Pro and later)
+ */
+#if defined(__i686__)
+#  define HAVE_I686 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I8MM.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I8MM.h
new file mode 100644
index 00000000..f818c3e2
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I8MM.h
@@ -0,0 +1,10 @@
+// HAVE_I8MM
+
+#undef HAVE_I8MM
+
+/* Signals that the target platform supports the I8MM instructions.
+ * __AMX_INT8__: This macro is defined if the compiler supports AMX-INT8 instructions.
+ */
+#if defined(__AMX_INT8__)
+#  define HAVE_I8MM 1
+#endif

From 971435dad9529c53f04c56c1d38c81db34e84433 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 17:36:33 +0200
Subject: [PATCH 056/166] Add HAVE_LOCALTIME_R

---
 .../autoconf/checks/HAVE_LOCALTIME_R.h        | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCALTIME_R.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCALTIME_R.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCALTIME_R.h
new file mode 100644
index 00000000..ab3a6c39
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCALTIME_R.h
@@ -0,0 +1,21 @@
+// HAVE_LOCALTIME_R : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LOCALTIME_R
+
+/*  Since glibc 2.0, 4.3BSD, FreeBSD 3.0, OpenBSD 2.1, NetBSD 1.2, MacOS 10.0, Mingw-w64 2.0
+ *  POSIX.1c, SVr4
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 2) || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(2, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    defined(_WIN32) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_LOCALTIME_R 1
+#endif

From b3a23c72006f2a2b7bb687469ab357a44a422dfb Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 17:41:45 +0200
Subject: [PATCH 057/166] Add HAVE_LOCAL_ALIGNED

---
 .../libbuild2/autoconf/checks/HAVE_LOCAL_ALIGNED.h     | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCAL_ALIGNED.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCAL_ALIGNED.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCAL_ALIGNED.h
new file mode 100644
index 00000000..d7c47fc1
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCAL_ALIGNED.h
@@ -0,0 +1,10 @@
+// HAVE_LOCAL_ALIGNED
+
+#undef HAVE_LOCAL_ALIGNED
+
+/* Platforms and compilers supporting alignment attributes
+ */
+ #if (defined(__SSE__) || defined(__AVX__) || defined(__ARM_NEON__) || defined(__ALTIVEC__)) \
+     && (defined(__GNUC__) || defined(_MSC_VER))
+#  define HAVE_LOCAL_ALIGNED 1
+#endif

From e8b2d6bae1fb4a956c9b8c50980b028cbd0337ff Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 17:45:21 +0200
Subject: [PATCH 058/166] Add HAVE_FAST_UNALIGNED

---
 .../autoconf/checks/HAVE_FAST_UNALIGNED.h     | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_UNALIGNED.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_UNALIGNED.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_UNALIGNED.h
new file mode 100644
index 00000000..43515aa9
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_UNALIGNED.h
@@ -0,0 +1,19 @@
+// HAVE_FAST_UNALIGNED
+
+#undef HAVE_FAST_UNALIGNED
+
+/* Platforms and compilers supporting efficient unaligned memory access.
+ */
+#if defined(__x86_64__) || defined(__i386__)  /* x86 and x86-64 (Intel and AMD) */
+/* x86 and x86-64 platforms have efficient unaligned memory access */
+#  define HAVE_FAST_UNALIGNED 1
+#elif defined(__ARM_ARCH) && (__ARM_ARCH >= 7) /* ARMv7-A or later */
+/* ARMv7-A and ARMv8-A architectures support fast unaligned access */
+#  define HAVE_FAST_UNALIGNED 1
+#elif defined(__aarch64__)  /* ARM 64-bit (ARMv8) */
+/* ARMv8-A (64-bit) has fast unaligned access */
+#  define HAVE_FAST_UNALIGNED 1
+#elif defined(__POWERPC__) && defined(__ALTIVEC__) /* PowerPC with AltiVec support */
+/* Some PowerPC platforms with AltiVec might support efficient unaligned access */
+#  define HAVE_FAST_UNALIGNED 1
+#endif

From 23207117208002cfc91f2a8ecb7c3930b1f9eeeb Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 17:53:52 +0200
Subject: [PATCH 059/166] Add HAVE_LOONGSON[2|3]

---
 .../libbuild2/autoconf/checks/HAVE_LOONGSON2.h        | 11 +++++++++++
 .../libbuild2/autoconf/checks/HAVE_LOONGSON3.h        | 11 +++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOONGSON2.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOONGSON3.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOONGSON2.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOONGSON2.h
new file mode 100644
index 00000000..c2f76c88
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOONGSON2.h
@@ -0,0 +1,11 @@
+// HAVE_LOONGSON2
+
+#undef HAVE_LOONGSON2
+
+/* MIPS-based Loongson processor.
+ */
+#ifdef __loongson__
+    #if defined(__loongson2f__) || defined(__loongson2e__)
+        #define HAVE_LOONGSON2 1
+    #endif
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOONGSON3.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOONGSON3.h
new file mode 100644
index 00000000..9c88f58b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOONGSON3.h
@@ -0,0 +1,11 @@
+// HAVE_LOONGSON3
+
+#undef HAVE_LOONGSON3
+
+/* MIPS-based Loongson processor.
+ */
+#ifdef __loongson__
+    #if defined(__loongson3__)
+        #define HAVE_LOONGSON3 1
+    #endif
+#endif

From fba039109c00486e6d3ae53e7ab271f4d1dddc40 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 6 Sep 2024 17:58:13 +0200
Subject: [PATCH 060/166] Add HAVE_PRAGMA_DEPRECATED

---
 .../autoconf/checks/HAVE_PRAGMA_DEPRECATED.h          | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PRAGMA_DEPRECATED.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PRAGMA_DEPRECATED.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PRAGMA_DEPRECATED.h
new file mode 100644
index 00000000..0a5cac89
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PRAGMA_DEPRECATED.h
@@ -0,0 +1,11 @@
+// HAVE_PRAGMA_DEPRECATED
+
+#undef HAVE_PRAGMA_DEPRECATED
+
+/* Support for '#pragma deprecated'
+ */
+#if (defined(__GNUC__) || defined(__clang__) || defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__)) \
+    && !(defined(__sun__) && !defined(__GNUC__))
+    // The compiler supports pragma deprecated (GCC, Clang, MSVC, MinGW)
+#  define HAVE_PRAGMA_DEPRECATED 1
+#endif

From 6a60f744c4a46196f7fe16725c2e8defa65ceb60 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 14:33:43 +0200
Subject: [PATCH 061/166] Add HAVE_IBM_ASM

---
 .../libbuild2/autoconf/checks/HAVE_IBM_ASM.h         | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_IBM_ASM.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_IBM_ASM.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_IBM_ASM.h
new file mode 100644
index 00000000..59ef6805
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_IBM_ASM.h
@@ -0,0 +1,12 @@
+// HAVE_IBM_ASM
+
+#undef HAVE_IBM_ASM
+
+/* IBM architecture that supports IBM assembly language,
+ * specifically PowerPC (PPC) or IBM Z (z/Architecture).
+ */
+#if (defined(__powerpc__) || defined(__ppc__) || defined(__PPC__) || defined(__powerpc64__) || defined(__PPC64__) || \
+     defined(__s390__) || defined(__s390x__) || \
+     defined(__IBMC__) || defined(__IBMCPP__))
+#  define HAVE_IBM_ASM 1
+#endif

From bc234d3d2c8446417f1cbfbb06af795a67c1fc76 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 14:40:36 +0200
Subject: [PATCH 062/166] Add HAVE_INLINE_ASM,
 HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS & HAVE_INLINE_ASM_NONLOCAL_LABELS

---
 .../libbuild2/autoconf/checks/HAVE_INLINE_ASM.h     | 13 +++++++++++++
 .../checks/HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS.h     | 12 ++++++++++++
 .../checks/HAVE_INLINE_ASM_NONLOCAL_LABELS.h        | 12 ++++++++++++
 3 files changed, 37 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM_NONLOCAL_LABELS.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM.h
new file mode 100644
index 00000000..df3c2ea4
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM.h
@@ -0,0 +1,13 @@
+// HAVE_INLINE_ASM
+
+#undef HAVE_INLINE_ASM
+
+/* Indicates whether inline assembly is supported by the compiler.
+ * Note: MSVC supports inline assembly but only in 32-bit mode.
+         Inline assembly is not supported in 64-bit MSVC
+ */
+#if (defined(__GNUC__) || defined(__clang__) || defined(__INTEL_COMPILER) || \
+     (defined(_MSC_VER) && !defined(_M_X64)) || defined(__IBMC__) || defined(__IBMCPP__) || \
+     defined(__ARMCC_VERSION))
+#  define HAVE_INLINE_ASM 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS.h
new file mode 100644
index 00000000..fcd9c3be
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS.h
@@ -0,0 +1,12 @@
+// HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS
+
+#undef HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS
+
+/* Indicates if the compiler supports direct symbol references in inline assembly.
+ * GCC and Clang support direct symbol references in inline assembly.
+ * MSVC allows direct symbol references only in 32-bit mode (not in 64-bit mode).
+ */
+#if defined(__GNUC__) || defined(__clang__) || \
+    (defined(_MSC_VER) && !defined(_M_X64))
+#  define HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM_NONLOCAL_LABELS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM_NONLOCAL_LABELS.h
new file mode 100644
index 00000000..6b04ac69
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INLINE_ASM_NONLOCAL_LABELS.h
@@ -0,0 +1,12 @@
+// HAVE_INLINE_ASM_NONLOCAL_LABELS
+
+#undef HAVE_INLINE_ASM_NONLOCAL_LABELS
+
+/* Indicates if the compiler supports non-local labels in inline assembly.
+ * GCC and Clang support non-local labels in inline assembly.
+ * MSVC might support non-local labels in 32-bit mode, but not in 64-bit mode.
+ */
+#if defined(__GNUC__) || defined(__clang__) || \
+    (defined(_MSC_VER) && !defined(_M_X64))
+#  define HAVE_INLINE_ASM_NONLOCAL_LABELS 1
+#endif

From 5ef0f5e60fe941349852e40cd79f41606fb19e6a Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 16:37:31 +0200
Subject: [PATCH 063/166] Add HAVE_LDBRX

---
 .../libbuild2/autoconf/checks/HAVE_LDBRX.h             | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDBRX.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDBRX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDBRX.h
new file mode 100644
index 00000000..c8e61e79
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDBRX.h
@@ -0,0 +1,10 @@
+// HAVE_LDBRX
+
+#undef HAVE_LDBRX
+
+/* Load Doubleword Byte-Reversed Indexed instruction,
+ * which is specific to the PowerPC (PPC) architecture.
+ */
+#if defined(__powerpc__) || defined(__ppc__) || defined(__PPC__) || defined(__powerpc64__) || defined(__PPC64__)
+#  define HAVE_LDBRX 1
+#endif

From 531bf1bbd6bdf2a6c29a5c463f9f77e90fecd0d9 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 16:41:23 +0200
Subject: [PATCH 064/166] Add HAVE_LDEXPF

---
 .../libbuild2/autoconf/checks/HAVE_LDEXPF.h        | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDEXPF.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDEXPF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDEXPF.h
new file mode 100644
index 00000000..140ab48f
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDEXPF.h
@@ -0,0 +1,14 @@
+// HAVE_LDEXPF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LDEXPF
+
+/*  Availability of the ldexpf() function, which is part of the C standard library.
+ */
+#if (__STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__clang__) || \
+    (defined(_MSC_VER) && (_MSC_VER >= 1800)) || defined(_POSIX_VERSION)
+#  define HAVE_LDEXPF 1
+#endif

From 4214f83698eff3e18fd568eba019352b89c396f9 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 16:45:20 +0200
Subject: [PATCH 065/166] Add HAVE_LIBC_MSVCRT

---
 .../libbuild2/autoconf/checks/HAVE_LIBC_MSVCRT.h         | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBC_MSVCRT.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBC_MSVCRT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBC_MSVCRT.h
new file mode 100644
index 00000000..32ec74d8
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBC_MSVCRT.h
@@ -0,0 +1,9 @@
+// HAVE_LIBC_MSVCRT
+
+#undef HAVE_LIBC_MSVCRT
+
+/*  Presence of MSVCRT (Microsoft Visual C++ Runtime Library) in the C standard library.
+ */
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#  define HAVE_LIBC_MSVCRT 1
+#endif

From dad00b4ce6934b3a73620f31f980933130275765 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 17:36:45 +0200
Subject: [PATCH 066/166] Add HAVE_MACHINE_IOCTL_METEOR_H &
 HAVE_MACHINE_IOCTL_BT848_H

---
 .../autoconf/checks/HAVE_MACHINE_IOCTL_BT848_H.h   | 14 ++++++++++++++
 .../autoconf/checks/HAVE_MACHINE_IOCTL_METEOR_H.h  | 14 ++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MACHINE_IOCTL_BT848_H.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MACHINE_IOCTL_METEOR_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MACHINE_IOCTL_BT848_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MACHINE_IOCTL_BT848_H.h
new file mode 100644
index 00000000..c5b2f211
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MACHINE_IOCTL_BT848_H.h
@@ -0,0 +1,14 @@
+// HAVE_MACHINE_IOCTL_BT848_H : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_MACHINE_IOCTL_BT848_H
+
+/* Presence of <machine/ioctl_bt848.h>.
+ * Since FreeBSD 4.0
+ */
+#if BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 0)
+#  define HAVE_MACHINE_IOCTL_BT848_H 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MACHINE_IOCTL_METEOR_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MACHINE_IOCTL_METEOR_H.h
new file mode 100644
index 00000000..f76f34dd
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MACHINE_IOCTL_METEOR_H.h
@@ -0,0 +1,14 @@
+// HAVE_MACHINE_IOCTL_METEOR_H : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_MACHINE_IOCTL_METEOR_H
+
+/* Presence of <machine/ioctl_meteor.h>.
+ * Since FreeBSD 4.0
+ */
+#if BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 0)
+#  define HAVE_MACHINE_IOCTL_METEOR_H 1
+#endif

From 73ca233061e9ca8439e4c0adcd4473a1282f2cab Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 17:37:02 +0200
Subject: [PATCH 067/166] Add HAVE_MALLOC_H

---
 .../libbuild2/autoconf/checks/HAVE_MALLOC_H.h        | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MALLOC_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MALLOC_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MALLOC_H.h
new file mode 100644
index 00000000..c461adfa
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MALLOC_H.h
@@ -0,0 +1,12 @@
+// HAVE_MALLOC_H
+
+#undef HAVE_MALLOC_H
+
+/* Presence of malloc.h.
+ * Supported on Linux (deprecated since glibc 2.0), Windows * Mingw
+ */
+#if (defined(__GLIBC__) && __GLIBC__ < 2) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__)
+#  define HAVE_MALLOC_H 1
+#endif

From 4b65c5199416c10eb3a6f0b1a8a86734336d48e3 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 17:39:05 +0200
Subject: [PATCH 068/166] Add HAVE_MEMALIGN & HAVE_POSIX_MEMALIGN

---
 .../libbuild2/autoconf/checks/HAVE_MEMALIGN.h   | 15 +++++++++++++++
 .../autoconf/checks/HAVE_POSIX_MEMALIGN.h       | 17 +++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MEMALIGN.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POSIX_MEMALIGN.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MEMALIGN.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MEMALIGN.h
new file mode 100644
index 00000000..cc41a929
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MEMALIGN.h
@@ -0,0 +1,15 @@
+// HAVE_MEMALIGN : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_MEMALIGN
+
+/* Presence of memalign() function.
+ * Since glibc 2.0, Solaris
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_MEMALIGN 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POSIX_MEMALIGN.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POSIX_MEMALIGN.h
new file mode 100644
index 00000000..43cd40e9
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_POSIX_MEMALIGN.h
@@ -0,0 +1,17 @@
+// HAVE_POSIX_MEMALIGN : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_POSIX_MEMALIGN
+
+/* Presence of memalign() function.
+ * Since FreeBSD 7.0, OpenBSD 5.5, NetBSD 3.0, MacOS 10.6
+ */
+#if BUILD2_AUTOCONF_FREEBSD_PREREQ(7, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(201405) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(3, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)
+#  define HAVE_POSIX_MEMALIGN 1
+#endif

From 9d94af9b6e1e5c2011278cd02374434722c5d837 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 17:39:36 +0200
Subject: [PATCH 069/166] Add HAVE_MAPVIEWOFFILE

---
 .../libbuild2/autoconf/checks/HAVE_MAPVIEWOFFILE.h     | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MAPVIEWOFFILE.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MAPVIEWOFFILE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MAPVIEWOFFILE.h
new file mode 100644
index 00000000..cb79f2ea
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MAPVIEWOFFILE.h
@@ -0,0 +1,10 @@
+// HAVE_MAPVIEWOFFILE
+
+#undef HAVE_MAPVIEWOFFILE
+
+/* Presence of MapViewOfFile() function.
+ * Supported on Windows
+ */
+#if defined(_WIN32)
+#  define HAVE_MAPVIEWOFFILE 1
+#endif

From a6326a8f26266a0c8399c6e4b6537285d2c0e096 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 17:50:31 +0200
Subject: [PATCH 070/166] Add HAVE_DEV_BKTR_IOCTL_BT848_H &
 HAVE_DEV_BKTR_IOCTL_METEOR_H

---
 .../autoconf/checks/HAVE_DEV_BKTR_IOCTL_BT848_H.h  | 14 ++++++++++++++
 .../autoconf/checks/HAVE_DEV_BKTR_IOCTL_METEOR_H.h | 14 ++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_BKTR_IOCTL_BT848_H.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_BKTR_IOCTL_METEOR_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_BKTR_IOCTL_BT848_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_BKTR_IOCTL_BT848_H.h
new file mode 100644
index 00000000..a5ff2d70
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_BKTR_IOCTL_BT848_H.h
@@ -0,0 +1,14 @@
+// HAVE_DEV_BKTR_IOCTL_BT848_H : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_DEV_BKTR_IOCTL_BT848_H
+
+/* Presence of <dev/bktr/ioctl_bt848.h>.
+ * Since FreeBSD 4.0
+ */
+#if BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 0)
+#  define HAVE_DEV_BKTR_IOCTL_BT848_H 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_BKTR_IOCTL_METEOR_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_BKTR_IOCTL_METEOR_H.h
new file mode 100644
index 00000000..64db2909
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_BKTR_IOCTL_METEOR_H.h
@@ -0,0 +1,14 @@
+// HAVE_DEV_BKTR_IOCTL_METEOR_H : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_DEV_BKTR_IOCTL_METEOR_H
+
+/* Presence of <dev/bktr/ioctl_meteor.h>.
+ * Since FreeBSD 4.0
+ */
+#if BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 0)
+#  define HAVE_DEV_BKTR_IOCTL_METEOR_H 1
+#endif

From b99349993098b5240ff15d29517b4cfb581052f8 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 17:51:34 +0200
Subject: [PATCH 071/166] Minor cleanup.

---
 .../libbuild2/autoconf/checks/HAVE_ASM_HWPROBE_H.h          | 2 +-
 .../libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h         | 2 +-
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDEXPF.h  | 6 +-----
 3 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_HWPROBE_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_HWPROBE_H.h
index 128b7cc8..108d482e 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_HWPROBE_H.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_HWPROBE_H.h
@@ -5,6 +5,6 @@
 /* AFAICS this is exclusively a Risc-V thing.
  */
 
-#if defined(__riscv)
+#if defined(__riscv__) || defined(__riscv)
 #  define HAVE_ASM_HWPROBE_H 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h
index c58372d6..aa71a369 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h
@@ -2,7 +2,7 @@
 
 #undef HAVE_DEV_IC_BT8XX_H
 
-/* OpenBSD 2.3, FreeBSD 2.2, glibc 2.19, Windows, Solaris
+/* OpenBSD 2.3, FreeBSD 2.2, glibc 2.19, NetBSD 1.5
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19) || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 2) || \
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDEXPF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDEXPF.h
index 140ab48f..ceec539b 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDEXPF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LDEXPF.h
@@ -1,8 +1,4 @@
-// HAVE_LDEXPF : BUILD2_AUTOCONF_LIBC_VERSION
-
-#ifndef BUILD2_AUTOCONF_LIBC_VERSION
-#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
-#endif
+// HAVE_LDEXPF
 
 #undef HAVE_LDEXPF
 

From dcbaf21f53ec1d93b3009f38dd35627dd431b44c Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 18:20:01 +0200
Subject: [PATCH 072/166] Add HAVE_KCVIMAGEBUFFERCOLORPRIMARIES_ITU_R_2020.h
 HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2020.h
 HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG.h
 HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_428_1.h
 HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ.h
 HAVE_KCVIMAGEBUFFERYCBCRMATRIX_ITU_R_2020.h
 HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE.h
 HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE.h
 HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE.h
 HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE.h
 HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE.h
 HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE.h
 HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE.h

---
 .../checks/HAVE_KCMVIDEOCODECTYPE_HEVC.h         | 16 ++++++++++++++++
 .../HAVE_KCMVIDEOCODECTYPE_HEVCWITHALPHA.h       | 14 ++++++++++++++
 .../autoconf/checks/HAVE_KCMVIDEOCODECTYPE_VP9.h | 14 ++++++++++++++
 ...AVE_KCVIMAGEBUFFERCOLORPRIMARIES_ITU_R_2020.h | 14 ++++++++++++++
 ...E_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2020.h | 14 ++++++++++++++
 ...VIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG.h | 14 ++++++++++++++
 ...MAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ.h | 14 ++++++++++++++
 ...VIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_428_1.h | 14 ++++++++++++++
 .../HAVE_KCVIMAGEBUFFERYCBCRMATRIX_ITU_R_2020.h  | 14 ++++++++++++++
 ...XELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE.h | 14 ++++++++++++++
 ...XELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE.h | 14 ++++++++++++++
 ...XELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE.h | 15 +++++++++++++++
 ...IXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE.h | 15 +++++++++++++++
 ...XELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE.h | 15 +++++++++++++++
 ...XELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE.h | 15 +++++++++++++++
 ...IXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE.h | 15 +++++++++++++++
 16 files changed, 231 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVC.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVCWITHALPHA.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_VP9.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERCOLORPRIMARIES_ITU_R_2020.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2020.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_428_1.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERYCBCRMATRIX_ITU_R_2020.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVC.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVC.h
new file mode 100644
index 00000000..c8720150
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVC.h
@@ -0,0 +1,16 @@
+// HAVE_KCMVIDEOCODECTYPE_HEVC : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCMVIDEOCODECTYPE_HEVC
+
+/* HEVC (High-Efficiency Video Coding),
+ * also known as H.265 codec, in the media framework.
+ * Since MacOS 10.13/iOS 11, Windows 10
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13) || \
+    (defined(_WIN32) && (_WIN32_WINNT >= _WIN32_WINNT_WIN10))
+#  define HAVE_KCMVIDEOCODECTYPE_HEVC 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVCWITHALPHA.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVCWITHALPHA.h
new file mode 100644
index 00000000..94773aec
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVCWITHALPHA.h
@@ -0,0 +1,14 @@
+// HAVE_KCMVIDEOCODECTYPE_HEVCWITHALPHA : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCMVIDEOCODECTYPE_HEVCWITHALPHA
+
+/* HEVC (High-Efficiency Video Coding) with Alpha Channel.
+ * Since MacOS 10.13/iOS 11
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13)
+#  define HAVE_KCMVIDEOCODECTYPE_HEVCWITHALPHA 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_VP9.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_VP9.h
new file mode 100644
index 00000000..76b60c88
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_VP9.h
@@ -0,0 +1,14 @@
+// HAVE_KCMVIDEOCODECTYPE_VP9 : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCMVIDEOCODECTYPE_VP9
+
+/* VP9 codec, an open-source codec developed by Google.
+ * Since MacOS 10.15/iOS 13
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 15)
+#  define HAVE_KCMVIDEOCODECTYPE_VP9 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERCOLORPRIMARIES_ITU_R_2020.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERCOLORPRIMARIES_ITU_R_2020.h
new file mode 100644
index 00000000..abbcd1c1
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERCOLORPRIMARIES_ITU_R_2020.h
@@ -0,0 +1,14 @@
+// HAVE_KCVIMAGEBUFFERCOLORPRIMARIES_ITU_R_2020 : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVIMAGEBUFFERCOLORPRIMARIES_ITU_R_2020
+
+/* ITU-R BT.2020 color primaries, used in Ultra HD and HDR video.
+ * Since MacOS 10.11/iOS 9
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 11)
+#  define HAVE_KCVIMAGEBUFFERCOLORPRIMARIES_ITU_R_2020 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2020.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2020.h
new file mode 100644
index 00000000..02dc8589
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2020.h
@@ -0,0 +1,14 @@
+// HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2020 : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2020
+
+/* ITU-R BT.2020 transfer function for HDR video.
+ * Since MacOS 10.11/iOS 9
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 11)
+#  define HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2020 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG.h
new file mode 100644
index 00000000..75a43044
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG.h
@@ -0,0 +1,14 @@
+// HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG
+
+/* ITU-R BT.2100 HLG (Hybrid Log-Gamma) transfer function, used in HDR video.
+ * Since MacOS 10.13/iOS 11
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13)
+#  define HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ.h
new file mode 100644
index 00000000..9ca57095
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ.h
@@ -0,0 +1,14 @@
+// HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ
+
+/* SMPTE ST 2084 PQ (Perceptual Quantizer) transfer function used in HDR10.
+ * Since MacOS 10.11/iOS 9
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 11)
+#  define HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_428_1.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_428_1.h
new file mode 100644
index 00000000..122130aa
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_428_1.h
@@ -0,0 +1,14 @@
+// HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_428_1 : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_428_1
+
+/* SMPTE ST 428-1 transfer function, used in digital cinema.
+ * Since MacOS 10.12/iOS 10
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 12)
+#  define HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_428_1 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERYCBCRMATRIX_ITU_R_2020.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERYCBCRMATRIX_ITU_R_2020.h
new file mode 100644
index 00000000..b7b9c01c
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVIMAGEBUFFERYCBCRMATRIX_ITU_R_2020.h
@@ -0,0 +1,14 @@
+// HAVE_KCVIMAGEBUFFERYCBCRMATRIX_ITU_R_2020 : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVIMAGEBUFFERYCBCRMATRIX_ITU_R_2020
+
+/* ITU-R BT.2020 YCbCr matrix, used in UHDTV color space conversions.
+ * Since MacOS 10.11/iOS 9
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 11)
+#  define HAVE_KCVIMAGEBUFFERYCBCRMATRIX_ITU_R_2020 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE.h
new file mode 100644
index 00000000..8e9ef3b2
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE.h
@@ -0,0 +1,14 @@
+// HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE
+
+/* 420 YCbCr 10-bit biplanar video range pixel format.
+ * Since MacOS 10.13/iOS 11
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13)
+#  define HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE.h
new file mode 100644
index 00000000..0aaabe90
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE.h
@@ -0,0 +1,14 @@
+// HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE
+
+/* 422 YCbCr 10-bit biplanar video range pixel format.
+ * Since MacOS 10.13/iOS 11
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13)
+#  define HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE.h
new file mode 100644
index 00000000..698ea85b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE.h
@@ -0,0 +1,15 @@
+// HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE
+
+/* 422 YCbCr 16-bit biplanar video range pixel format,
+ * typically used for higher bit depth color processing in HDR.
+ * Since MacOS 10.13/iOS 11
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13)
+#  define HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE.h
new file mode 100644
index 00000000..6a6ea9b2
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE.h
@@ -0,0 +1,15 @@
+// HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE
+
+/* 422 YCbCr 8-bit biplanar video range pixel format,
+ * commonly used in SD and HD video content.
+ * Since MacOS 10.13/iOS 11
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13)
+#  define HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE.h
new file mode 100644
index 00000000..5f4b22de
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE.h
@@ -0,0 +1,15 @@
+// HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE
+
+/* 444 YCbCr 10-bit biplanar video range pixel format,
+ * commonly used in HDR workflows.
+ * Since MacOS 10.13/iOS 11
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13)
+#  define HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE.h
new file mode 100644
index 00000000..7b5be7af
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE.h
@@ -0,0 +1,15 @@
+// HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE
+
+/* 444 YCbCr 16-bit biplanar video range pixel format,
+ * often used in higher-end video production and HDR.
+ * Since MacOS 10.13/iOS 11
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13)
+#  define HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE.h
new file mode 100644
index 00000000..6fb6480f
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE.h
@@ -0,0 +1,15 @@
+// HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE
+
+/* 444 YCbCr 8-bit biplanar video range pixel format,
+ * commonly used in professional video production.
+ * Since MacOS 10.13/iOS 11
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13)
+#  define HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE 1
+#endif

From 5482688a47ca3be444af14b2294af7ac78f0f681 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 18:35:44 +0200
Subject: [PATCH 073/166] Add HAVE_PRCTL

---
 .../libbuild2/autoconf/checks/HAVE_PRCTL.h         | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PRCTL.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PRCTL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PRCTL.h
new file mode 100644
index 00000000..c45dbdaa
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PRCTL.h
@@ -0,0 +1,14 @@
+// HAVE_PRCTL : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_PRCTL
+
+/* Presence of the prctl() system call.
+ * Since glibc 2.0
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)
+#  define HAVE_PRCTL 1
+#endif

From c4abb631cd6c4ea2eebd1f7df7bce4bdff7039e0 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 18:36:50 +0200
Subject: [PATCH 074/166] Add HAVE_PTHREAD_{CANCEL, NP_H, SETNAME_NP,
 SET_NAME_NP}

---
 .../autoconf/checks/HAVE_PTHREAD_CANCEL.h     | 19 +++++++++++++++++++
 .../autoconf/checks/HAVE_PTHREAD_NP_H.h       | 14 ++++++++++++++
 .../autoconf/checks/HAVE_PTHREAD_SETNAME_NP.h | 18 ++++++++++++++++++
 .../checks/HAVE_PTHREAD_SET_NAME_NP.h         | 18 ++++++++++++++++++
 4 files changed, 69 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_CANCEL.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_NP_H.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SETNAME_NP.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_CANCEL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_CANCEL.h
new file mode 100644
index 00000000..7193aa70
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_CANCEL.h
@@ -0,0 +1,19 @@
+// HAVE_PTHREAD_CANCEL : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_PTHREAD_CANCEL
+
+/* Presence of the pthread_cancel() function.
+ * Since glibc 2.0, FreeBSD 5.2, OpenBSD 3.3, NetBSD 3.0, MacOS 10.0
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 2)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200305) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(3, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_PTHREAD_CANCEL 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_NP_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_NP_H.h
new file mode 100644
index 00000000..646ebfbe
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_NP_H.h
@@ -0,0 +1,14 @@
+// HAVE_PTHREAD_NP_H : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_PTHREAD_NP_H
+
+/* Existence of the pthread_np.h header, which provides non-standard POSIX (NP).
+ * FreeBSD 5.0
+ */
+#if BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 0)
+#  define HAVE_PTHREAD_NP_H 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SETNAME_NP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SETNAME_NP.h
new file mode 100644
index 00000000..0461a43b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SETNAME_NP.h
@@ -0,0 +1,18 @@
+// HAVE_PTHREAD_SETNAME_NP : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_PTHREAD_SETNAME_NP
+
+/* Presence of the pthread_setname_np() function, which is a
+ * non-standard POSIX function used to set the name of a thread.
+ * Since glibc 2.12, FreeBSD 7.0, NetBSD 8.0, MacOS 10.6
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 12) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(7, 0) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(8, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)
+#  define HAVE_PTHREAD_SETNAME_NP 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h
new file mode 100644
index 00000000..1c035a8a
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h
@@ -0,0 +1,18 @@
+// HAVE_PTHREAD_SET_NAME_NP : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_PTHREAD_SET_NAME_NP
+
+/* Presence of the pthread_set_name_np() function, which is a
+ * non-standard POSIX function used to set the name of a thread.
+ * Since glibc 2.12, FreeBSD 7.0, NetBSD 8.0, MacOS 10.6
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 12) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(7, 0) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(8, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)
+#  define HAVE_PTHREAD_SET_NAME_NP 1
+#endif

From a26dfbcec4c524825bb505d3af7baa3903ec9f41 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 21:05:46 +0200
Subject: [PATCH 075/166] Add:  HAVE_STRUCT_GROUP_SOURCE_REQ 
 HAVE_STRUCT_IP_MREQ_SOURCE  HAVE_STRUCT_IPV6_MREQ  HAVE_STRUCT_POLLFD 
 HAVE_STRUCT_RUSAGE_RU_MAXRSS  HAVE_STRUCT_SOCKADDR_SA_LEN 
 HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC  HAVE_STRUCT_V4L2_FRMIVALENUM_DISCRETE

---
 .../checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h     | 16 ++++++++++++++
 .../autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h   | 19 +++++++++++++++++
 .../checks/HAVE_STRUCT_IP_MREQ_SOURCE.h       | 16 ++++++++++++++
 .../autoconf/checks/HAVE_STRUCT_POLLFD.h      | 21 +++++++++++++++++++
 .../checks/HAVE_STRUCT_RUSAGE_RU_MAXRSS.h     | 21 +++++++++++++++++++
 .../checks/HAVE_STRUCT_SOCKADDR_SA_LEN.h      | 20 ++++++++++++++++++
 .../checks/HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC.h | 19 +++++++++++++++++
 .../HAVE_STRUCT_V4L2_FRMIVALENUM_DISCRETE.h   | 15 +++++++++++++
 8 files changed, 147 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_POLLFD.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_RUSAGE_RU_MAXRSS.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_SA_LEN.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_V4L2_FRMIVALENUM_DISCRETE.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h
new file mode 100644
index 00000000..a47ecaa0
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h
@@ -0,0 +1,16 @@
+// HAVE_STRUCT_GROUP_SOURCE_REQ : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_STRUCT_GROUP_SOURCE_REQ
+
+/* Presence of the group_source_req structure, used for managing IP multicast group
+ * subscriptions with source filtering, typically found in newer networking libraries.
+ * Since glibc 2.5, FreeBSD 9.0
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 5) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0)
+#  define HAVE_STRUCT_GROUP_SOURCE_REQ 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h
new file mode 100644
index 00000000..b8d10095
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h
@@ -0,0 +1,19 @@
+// HAVE_STRUCT_IPV6_MREQ : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_STRUCT_IPV6_MREQ
+
+/* Pof the group_source_req structure, used for managing IP multicast group
+ * subscriptions with source filtering, typically found in newer networking libraries.
+ * Since glibc 2.1, FreeBSD 5.0, OpenBSD 3.0, NetBSD 1.5, MacOS 10
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200112) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0)
+#  define HAVE_STRUCT_IPV6_MREQ 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h
new file mode 100644
index 00000000..2d2fdd1f
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h
@@ -0,0 +1,16 @@
+// HAVE_STRUCT_IP_MREQ_SOURCE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_STRUCT_IP_MREQ_SOURCE
+
+/* Presence of the ip_mreq_source structure, used for IP
+ * multicast source filtering in IPv4.
+ * Since glibc 2.1, FreeBSD 9.0
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0)
+#  define HAVE_STRUCT_IP_MREQ_SOURCE 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_POLLFD.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_POLLFD.h
new file mode 100644
index 00000000..8ab2b8d7
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_POLLFD.h
@@ -0,0 +1,21 @@
+// HAVE_STRUCT_POLLFD : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_STRUCT_POLLFD
+
+/* Presence of the pollfd structure, used for the poll() system call,
+ * which monitors multiple file descriptors.
+ * Since glibc 2.0, FreeBSD 3.0, OpenBSD 2.0, NetBSD 1.3, MacOS 10
+ * Solaris 2.6
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_STRUCT_POLLFD 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_RUSAGE_RU_MAXRSS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_RUSAGE_RU_MAXRSS.h
new file mode 100644
index 00000000..d67b138f
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_RUSAGE_RU_MAXRSS.h
@@ -0,0 +1,21 @@
+// HAVE_STRUCT_RUSAGE_RU_MAXRSS : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_STRUCT_RUSAGE_RU_MAXRSS
+
+/* Presence of the ru_maxrss field in the rusage structure, which
+ * tracks the maximum resident set size (memory usage) of a process.
+ * Since glibc 2.0, FreeBSD 4.0, OpenBSD 2.0, NetBSD 1.3, MacOS 10
+ * Solaris 7
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_STRUCT_RUSAGE_RU_MAXRSS 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_SA_LEN.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_SA_LEN.h
new file mode 100644
index 00000000..7e133c91
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_SA_LEN.h
@@ -0,0 +1,20 @@
+// HAVE_STRUCT_SOCKADDR_SA_LEN : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_STRUCT_SOCKADDR_SA_LEN
+
+/* Presence of the sa_len field in the sockaddr structure,
+ * which defines the length of the address structure.
+ * FreeBSD 4.0, OpenBSD 2.0, NetBSD 1.5, MacOS 10
+ * Solaris 7
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0)
+#  define HAVE_STRUCT_SOCKADDR_SA_LEN 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC.h
new file mode 100644
index 00000000..293e2985
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC.h
@@ -0,0 +1,19 @@
+// HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
+
+/* Presence of the st_mtim.tv_nsec field in the stat structure,
+ * which provides nanosecond resolution for file modification times.
+ * Since glibc 2.12, FreeBSD 5.0, OpenBSD 5.6, NetBSD 6.0, MacOS 10.5
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 12) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(201411) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(6, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 5)
+#  define HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_V4L2_FRMIVALENUM_DISCRETE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_V4L2_FRMIVALENUM_DISCRETE.h
new file mode 100644
index 00000000..b1a2aae5
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_V4L2_FRMIVALENUM_DISCRETE.h
@@ -0,0 +1,15 @@
+// HAVE_STRUCT_V4L2_FRMIVALENUM_DISCRETE : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_STRUCT_V4L2_FRMIVALENUM_DISCRETE
+
+/* Presence of the v4l2_frmivalenum structure, specifically for
+ * discrete frame intervals, in the Video4Linux2 (V4L2) API.
+ * Since glibc 2.5
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 5)
+#  define HAVE_STRUCT_V4L2_FRMIVALENUM_DISCRETE 1
+#endif

From a286c5fa04440370c6e3c0800b7b48451f3b972f Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 21:20:06 +0200
Subject: [PATCH 076/166] Add HAVE_SYSCTLBYNAME

---
 .../autoconf/checks/HAVE_SYSCTLBYNAME.h        | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYSCTLBYNAME.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYSCTLBYNAME.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYSCTLBYNAME.h
new file mode 100644
index 00000000..c4990b5d
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYSCTLBYNAME.h
@@ -0,0 +1,18 @@
+// HAVE_SYSCTLBYNAME : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_SYSCTLBYNAME
+
+/* Presence of the sysctlbyname() function, which retrieves system
+ * information using a string name (e.g., hardware data or OS settings).
+ * It's commonly used in BSD-based systems to access system configuration parameters.
+ * Since FreeBSD 2.2, NetBSD 1.3, MacOS 10.0
+ */
+#if BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 2) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0)
+#  define HAVE_SYSCTLBYNAME 1
+#endif

From 84fb5991693a24e2abf1ea9e767a4cc8ab2992c0 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 21:20:18 +0200
Subject: [PATCH 077/166] Add HAVE_SYS_HWPROBE_H

---
 .../autoconf/checks/HAVE_SYS_HWPROBE_H.h          | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_HWPROBE_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_HWPROBE_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_HWPROBE_H.h
new file mode 100644
index 00000000..6917ae51
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_HWPROBE_H.h
@@ -0,0 +1,15 @@
+// HAVE_SYS_HWPROBE_H : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_SYS_HWPROBE_H
+
+/* Presence of sys/hwprobe.h, which is specific to hardware probing
+ * interfaces on some Unix-based systems for identifying hardware capabilities.
+ * Since Solaris 2.6
+ */
+#if ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_SYS_HWPROBE_H 1
+#endif

From 9adfe113b880c7cd4383becf2c39a3dfe72737b2 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 21:20:33 +0200
Subject: [PATCH 078/166] Add HAVE_SYS_VIDEOIO_H

---
 .../autoconf/checks/HAVE_SYS_VIDEOIO_H.h         | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_VIDEOIO_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_VIDEOIO_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_VIDEOIO_H.h
new file mode 100644
index 00000000..4616e000
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_VIDEOIO_H.h
@@ -0,0 +1,16 @@
+// HAVE_SYS_VIDEOIO_H : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_SYS_VIDEOIO_H
+
+/* Presence of sys/videoio.h, which provides an interface for controlling video
+ * devices. It is often used for video capture devices, particularly on Unix systems.
+ * Since Linux Kernel 2.2 (now deprecated), Solaris
+ */
+#if defined(__linux__) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_SYS_VIDEOIO_H 1
+#endif

From 4b84b797b2b7743170cce107da65173e55982d98 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Sep 2024 21:20:46 +0200
Subject: [PATCH 079/166] Add HAVE_TERMIOS_H

---
 .../autoconf/checks/HAVE_TERMIOS_H.h          | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TERMIOS_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TERMIOS_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TERMIOS_H.h
new file mode 100644
index 00000000..0b0bd707
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TERMIOS_H.h
@@ -0,0 +1,20 @@
+// HAVE_TERMIOS_H : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_TERMIOS_H
+
+/* Presence of termios.h header, which provides an API for terminal I/O settings,
+ * commonly used for managing terminal attributes (e.g., baud rate, control flags).
+ * Since glibc 2.0, FreeBSD 2.0, OpenBSD 2.0, NetBSD 1.0, MacOS 10, Solaris 2.0
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_TERMIOS_H 1
+#endif

From 32dae31ace4dc50346eb8ae72bb8293add769cbd Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:51:38 +0200
Subject: [PATCH 080/166] Tweak HAVE_ISINF

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISINF.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISINF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISINF.h
index fee12281..1787f1a3 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISINF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISINF.h
@@ -6,15 +6,15 @@
 
 #undef HAVE_ISINF
 
-/* Since Linux/glibc 2.0, FreeBSD 5.1, OpenBSD 4.4, NetBSD 1.3, Mac OS, Solaris
+/* Since Linux/glibc 2.1, FreeBSD 5.1, OpenBSD 4.4, NetBSD 1.6, Mac OS 10.3,
+ * Windows, MinGW 3.0, Solaris 10
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)     || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 1)   || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(200910) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3)    || \
-    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)    || \
-    BUILD2_AUTOCONF_MINGW_PREREQ(1, 0)     || \
-    defined(BUILD2_AUTOCONF_MACOS)         || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 3)    || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(3, 0)     || \
     defined(_WIN32)                        || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_ISINF 1

From db03ff1aa9041cb870171586260ae34e50d3e221 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:27 +0200
Subject: [PATCH 081/166] Add HAVE_RV

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RV.h | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RV.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RV.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RV.h
new file mode 100644
index 00000000..8a6d7ede
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RV.h
@@ -0,0 +1,9 @@
+// HAVE_RV
+
+#undef HAVE_RV
+
+/* Presence of RISC-V architecture (RV) support in the environment.
+ */
+#if defined(__riscv__) || defined(__riscv)
+#  define HAVE_RV 1
+#endif

From 89e9b56285e4dd129b7a92015a9d592ca6b651e2 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:36 +0200
Subject: [PATCH 082/166] Add HAVE_RVV

---
 .../libbuild2/autoconf/checks/HAVE_RVV.h               | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RVV.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RVV.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RVV.h
new file mode 100644
index 00000000..4119dd12
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RVV.h
@@ -0,0 +1,10 @@
+// HAVE_RVV
+
+#undef HAVE_RVV
+
+/* Presence of RISC-V Vector Extension (RVV), which adds vector
+ * processing capabilities to the base RISC-V architecture.
+ */
+#if defined(__riscv_vector)
+#  define HAVE_RVV 1
+#endif

From aeced58391c179b4bc9e824fbe757b5200050889 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:37 +0200
Subject: [PATCH 083/166] Add HAVE_RV_ZVBB

---
 .../libbuild2/autoconf/checks/HAVE_RV_ZVBB.h           | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RV_ZVBB.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RV_ZVBB.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RV_ZVBB.h
new file mode 100644
index 00000000..deedd6bb
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RV_ZVBB.h
@@ -0,0 +1,10 @@
+// HAVE_RV_ZVBB
+
+#undef HAVE_RV_ZVBB
+
+/* Presence of ZVBB extension of the RISC-V ISA, which
+ * adds vector bit-manipulation instructions.
+ */
+#if defined(__riscv_zvbb)
+#  define HAVE_RV_ZVBB 1
+#endif

From a7c4c81ca3fe4d8b8747188973899aef7d9281b1 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:38 +0200
Subject: [PATCH 084/166] Add HAVE_SCHED_GETAFFINITY

---
 .../autoconf/checks/HAVE_SCHED_GETAFFINITY.h     | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SCHED_GETAFFINITY.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SCHED_GETAFFINITY.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SCHED_GETAFFINITY.h
new file mode 100644
index 00000000..03846d65
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SCHED_GETAFFINITY.h
@@ -0,0 +1,16 @@
+// HAVE_SCHED_GETAFFINITY : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_SCHED_GETAFFINITY
+
+/* Presence of the sched_getaffinity() function, which retrieves
+ * the CPU affinity of a process (i.e., which CPUs a process can run on).
+ * Since glibc 2.3.4, FreeBSD 7.1
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 4) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(7, 1)
+#  define HAVE_SCHED_GETAFFINITY 1
+#endif

From 223c7893dfdcf8d55d7cdb99614b559a8af321b2 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:39 +0200
Subject: [PATCH 085/166] Add HAVE_SECITEMIMPORT

---
 .../autoconf/checks/HAVE_SECITEMIMPORT.h          | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECITEMIMPORT.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECITEMIMPORT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECITEMIMPORT.h
new file mode 100644
index 00000000..5f09a92f
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECITEMIMPORT.h
@@ -0,0 +1,15 @@
+// HAVE_SECITEMIMPORT : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_SECITEMIMPORT
+
+/* Presence of the SecItemImport function, which is used in Apple's
+ * Security framework for importing security items (such as certificates or keys).
+ * Since MacOS 10.7/iOS 5
+ */
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)
+#  define HAVE_SECITEMIMPORT 1
+#endif

From 37d62a1fa753b539dfc0f88731dc59c0e403df5b Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:40 +0200
Subject: [PATCH 086/166] Add HAVE_SECTION_DATA_REL_RO

---
 .../autoconf/checks/HAVE_SECTION_DATA_REL_RO.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECTION_DATA_REL_RO.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECTION_DATA_REL_RO.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECTION_DATA_REL_RO.h
new file mode 100644
index 00000000..d05ecf6c
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECTION_DATA_REL_RO.h
@@ -0,0 +1,18 @@
+// HAVE_SECTION_DATA_REL_RO : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_SECTION_DATA_REL_RO
+
+/* Presence of the .data.rel.ro section, which is used for
+ * placing read-only data that may be relocated at runtime.
+ * Since glibc 2.3, FreeBSD 11.0, MacOS 10.12, Solaris 10
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 3)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(11, 0)  || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 12) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_SECTION_DATA_REL_RO 1
+#endif

From a6588559c694f0cbab0e3c48ca737287aaf1899c Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:40 +0200
Subject: [PATCH 087/166] Add HAVE_SETCONSOLECTRLHANDLER

---
 .../autoconf/checks/HAVE_SETCONSOLECTRLHANDLER.h      | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETCONSOLECTRLHANDLER.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETCONSOLECTRLHANDLER.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETCONSOLECTRLHANDLER.h
new file mode 100644
index 00000000..93d38ad6
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETCONSOLECTRLHANDLER.h
@@ -0,0 +1,11 @@
+// HAVE_SETCONSOLECTRLHANDLER
+
+#undef HAVE_SETCONSOLECTRLHANDLER
+
+/* Presence of the SetConsoleCtrlHandler() function, which is specific
+ * to Windows for handling console control events like Ctrl+C.
+ * Windows
+ */
+#if defined(_WIN32)
+#  define HAVE_SETCONSOLECTRLHANDLER 1
+#endif

From 2ace485bb7e9f2a6e590fe4878ee378f9bf64a02 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:46 +0200
Subject: [PATCH 088/166] Add HAVE_SETCONSOLETEXTATTRIBUTE

---
 .../autoconf/checks/HAVE_SETCONSOLETEXTATTRIBUTE.h    | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETCONSOLETEXTATTRIBUTE.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETCONSOLETEXTATTRIBUTE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETCONSOLETEXTATTRIBUTE.h
new file mode 100644
index 00000000..66f0ab7a
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETCONSOLETEXTATTRIBUTE.h
@@ -0,0 +1,11 @@
+// HAVE_SETCONSOLETEXTATTRIBUTE
+
+#undef HAVE_SETCONSOLETEXTATTRIBUTE
+
+/* Presence of the SetConsoleTextAttribute() function, which is used
+ * on Windows to change the text color and attributes in the console.
+ * Windows
+ */
+#if defined(_WIN32)
+#  define HAVE_SETCONSOLETEXTATTRIBUTE 1
+#endif

From 18a8b4bdecff019f97e6e34fa4a23d6b667a385f Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:47 +0200
Subject: [PATCH 089/166] Add HAVE_SETDLLDIRECTORY

---
 .../libbuild2/autoconf/checks/HAVE_SETDLLDIRECTORY.h  | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETDLLDIRECTORY.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETDLLDIRECTORY.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETDLLDIRECTORY.h
new file mode 100644
index 00000000..6fcf834e
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETDLLDIRECTORY.h
@@ -0,0 +1,11 @@
+// HAVE_SETDLLDIRECTORY
+
+#undef HAVE_SETDLLDIRECTORY
+
+/* Presence of the SetDllDirectory() function, which sets a
+ * directory to search for DLLs when loading libraries in Windows.
+ * Windows
+ */
+#if defined(_WIN32)
+#  define HAVE_SETDLLDIRECTORY 1
+#endif

From 7572bd8f8d0ee66fdca51472638700cedd45dc10 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:47 +0200
Subject: [PATCH 090/166] Add HAVE_SETMODE

---
 .../libbuild2/autoconf/checks/HAVE_SETMODE.h          | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETMODE.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETMODE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETMODE.h
new file mode 100644
index 00000000..e42c9d19
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SETMODE.h
@@ -0,0 +1,11 @@
+// HAVE_SETMODE
+
+#undef HAVE_SETMODE
+
+/* Presence of the setmode() function, used to set the mode
+ * of a file descriptor (such as binary or text mode).
+ * Windows, MingW
+ */
+#if defined(_WIN32) || defined(__MINGW32__)
+#  define HAVE_SETMODE 1
+#endif

From 4c8332d3eb185b97c22f49f75dddaa5bd283c21f Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:48 +0200
Subject: [PATCH 091/166] Add HAVE_SIMD_ALIGN_16

---
 .../libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_16.h     | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_16.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_16.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_16.h
new file mode 100644
index 00000000..667eec5c
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_16.h
@@ -0,0 +1,10 @@
+// HAVE_SIMD_ALIGN_16
+
+#undef HAVE_SIMD_ALIGN_16
+
+/* Presence of 16-byte SIMD alignment,
+ * typically required for SSE and NEON.
+ */
+#if defined(__SSE__) || defined(__ARM_NEON) || defined(__ARM_NEON__)
+#  define HAVE_SIMD_ALIGN_16 1
+#endif

From 896dc29abe72c8578c8021bc81808466b01e8f34 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:48 +0200
Subject: [PATCH 092/166] Add HAVE_SIMD_ALIGN_32

---
 .../libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_32.h       | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_32.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_32.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_32.h
new file mode 100644
index 00000000..51c171b2
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_32.h
@@ -0,0 +1,9 @@
+// HAVE_SIMD_ALIGN_32
+
+#undef HAVE_SIMD_ALIGN_32
+
+/* Presence of 32-byte SIMD alignment, required for AVX.
+ */
+#if defined(__AVX__)
+#  define HAVE_SIMD_ALIGN_32 1
+#endif

From 2cda0cc088d529c765274a7d96098f59affd2361 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:49 +0200
Subject: [PATCH 093/166] Add HAVE_SIMD_ALIGN_64

---
 .../libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_64.h       | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_64.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_64.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_64.h
new file mode 100644
index 00000000..f77ad4e3
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_64.h
@@ -0,0 +1,9 @@
+// HAVE_SIMD_ALIGN_64
+
+#undef HAVE_SIMD_ALIGN_64
+
+/* Presence of 64-byte SIMD alignment, required for AVX-512.
+ */
+#if defined(__AVX512F__)
+#  define HAVE_SIMD_ALIGN_64 1
+#endif

From 162979fba5581e13f9707e777fb356d2ffb31ce3 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 14:47:54 +0200
Subject: [PATCH 094/166] Add HAVE_SINF

---
 .../libbuild2/autoconf/checks/HAVE_SINF.h     | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SINF.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SINF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SINF.h
new file mode 100644
index 00000000..b8e7dc6b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SINF.h
@@ -0,0 +1,21 @@
+// HAVE_SINF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_SINF
+
+/* Since Linux/glibc 2.1, FreeBSD 5.0, OpenBSD 3.0, NetBSD 1.6, Mac OS 10.3,
+ * Windows, MinGW 3.0, Solaris 10
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 0)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200112) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 6)    || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 3)    || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(3, 0)     || \
+    defined(_WIN32)                        || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_SINF 1
+#endif

From d6c997723a8564efa70095a5697c0f70fb261c3e Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 15:07:23 +0200
Subject: [PATCH 095/166] Add HAVE_SSE4

---
 .../libbuild2/autoconf/checks/HAVE_SSE4.h        | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SSE4.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SSE4.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SSE4.h
new file mode 100644
index 00000000..3046a79d
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SSE4.h
@@ -0,0 +1,16 @@
+// HAVE_SSE4
+
+#undef HAVE_SSE4
+
+/* Presence of SSE4 (Streaming SIMD Extensions 4)
+ * instructions, which include SSE4.1 and SSE4.2.
+ * This code is based on HAVE_SSE4_1 and:
+ * https://code.qt.io/cgit/qt/qtbase.git/tree/src/corelib/global/qsimd.h.
+ */
+#ifdef _MSC_VER
+#  ifdef __AVX__
+#    define HAVE_SSE4 1
+#  endif
+#elif defined(__SSE4_1__) || defined(__SSE4_2__)
+#  define HAVE_SSE4 1
+#endif

From d809fee39c08f5748ed3ea0369d8935eb8351049 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 15:34:58 +0200
Subject: [PATCH 096/166] Add HAVE_FAST_64BIT

---
 .../autoconf/checks/HAVE_FAST_64BIT.h         | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_64BIT.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_64BIT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_64BIT.h
new file mode 100644
index 00000000..32b36b51
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_64BIT.h
@@ -0,0 +1,22 @@
+// HAVE_FAST_64BIT : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_FAST_64BIT
+
+/* Presence of optimized support for 64-bit arithmetic operations.
+ * Virtually on all systems if targeting 64-bit.
+ */
+#if defined(_WIN64) \
+    || defined(__x86_64__) || defined(__x86_64) \
+    || defined(__ppc64__) || defined(__PPC64__) \
+    || defined(__aarch64__) \
+    || defined(__mips64__) \
+    || defined(__powerpc64__) \
+    || defined(__s390x__) \
+    || (defined(__sparc__) && defined(__arch64__)) \
+    || defined(__riscv_xlen) && __riscv_xlen == 64
+#  define HAVE_FAST_64BIT 1
+#endif

From dd25faa040d21d66ecb4c69e5e8d66eafd7d113d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 15:58:29 +0200
Subject: [PATCH 097/166] Add HAVE_FAST_CLZ

---
 .../libbuild2/autoconf/checks/HAVE_FAST_CLZ.h | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_CLZ.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_CLZ.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_CLZ.h
new file mode 100644
index 00000000..ca8f2296
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_CLZ.h
@@ -0,0 +1,35 @@
+// HAVE_FAST_CLZ : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_FAST_CLZ
+
+/* System has optimized support for Count Leading Zeros (CLZ) instructions.
+ * Most modern architectures provide hardware instructions for fast CLZ operations
+ * when targeting 64-bit.
+ * Since glibc 2.3, FreeBSD 5.0, OpenBSD, NetBSD, MacOS 10.6, Solaris,
+ * Windows, MinGW 3.0
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 3)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  if defined(_WIN64) \
+      || defined(__x86_64__) || defined(__x86_64) \
+      || defined(__ppc64__) || defined(__PPC64__) \
+      || defined(__aarch64__) \
+      || defined(__mips64__) \
+      || defined(__powerpc64__) \
+      || defined(__s390x__) \
+      || (defined(__sparc__) && defined(__arch64__)) \
+      || defined(__riscv_xlen) && __riscv_xlen == 64
+#    define HAVE_FAST_CLZ 1
+#  endif
+#endif

From 47e2fb7de07a854a56aedbea710af3ae95eab929 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 16:13:45 +0200
Subject: [PATCH 098/166] Add HAVE_FAST_CMOV

---
 .../autoconf/checks/HAVE_FAST_CMOV.h          | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_CMOV.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_CMOV.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_CMOV.h
new file mode 100644
index 00000000..2f487341
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_CMOV.h
@@ -0,0 +1,25 @@
+// HAVE_FAST_CMOV : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_FAST_CMOV
+
+/* System has optimized support for Count Leading Zeros (CLZ) instructions.
+ * Most modern architectures provide hardware instructions for fast CLZ operations
+ * when targeting 64-bit.
+ * Since glibc 2.0, FreeBSD 5.0, OpenBSD (x86), NetBSD, MacOS 10.6 (x86_64), Solaris (x86_64 + GCC),
+ * Windows, MinGW 3.0
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 3)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 0)  || \
+    (BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) && defined(__i386__)) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    (BUILD2_AUTOCONF_MACOS_PREREQ(10, 6) && defined(__x86_64__)) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__) || \
+    (((defined(__sun) && defined(__SVR4)) || defined(__sun__)) && defined(__x86_64__) && defined (__GNUC__))
+#  define HAVE_FAST_CMOV 1
+#endif

From d0489cb2b09cc43d99f5d6f7b0e1ebfe3ea899ca Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 16:40:12 +0200
Subject: [PATCH 099/166] Add HAVE_LIBDRM_GETFB2

---
 .../autoconf/checks/HAVE_LIBDRM_GETFB2.h       | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h
new file mode 100644
index 00000000..7aceb203
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h
@@ -0,0 +1,18 @@
+// HAVE_LIBDRM_GETFB2 : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LIBDRM_GETFB2
+
+/* Presence of the libdrm's getfb2() function, which is part of
+ * Direct Rendering Manager (DRM) used for managing graphics on Linux.
+ * Linux (libdrm 2.4.91)
+ */
+#if defined(__linux__)
+#  include <drm/drm.h>
+#  ifdef DRM_IOCTL_MODE_GETFB2
+#    define HAVE_LIBDRM_GETFB2 1
+#  endif
+#endif

From 5f876dd4faed49bb00a5190ecfa30986baef787d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 16:45:53 +0200
Subject: [PATCH 100/166] Tweak HAVE_LIBDRM_GETFB2

---
 .../libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h          | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h
index 7aceb203..055676c0 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h
@@ -1,8 +1,4 @@
-// HAVE_LIBDRM_GETFB2 : BUILD2_AUTOCONF_LIBC_VERSION
-
-#ifndef BUILD2_AUTOCONF_LIBC_VERSION
-#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
-#endif
+// HAVE_LIBDRM_GETFB2
 
 #undef HAVE_LIBDRM_GETFB2
 

From de1a6d92c366083c26d252a5c340fdc68087a5d4 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:27:26 +0200
Subject: [PATCH 101/166] Add HAVE_LINUX_DMA_BUF_H

---
 .../autoconf/checks/HAVE_LINUX_DMA_BUF_H.h         | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LINUX_DMA_BUF_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LINUX_DMA_BUF_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LINUX_DMA_BUF_H.h
new file mode 100644
index 00000000..de348263
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LINUX_DMA_BUF_H.h
@@ -0,0 +1,14 @@
+// HAVE_LINUX_DMA_BUF_H
+
+#undef HAVE_LINUX_DMA_BUF_H
+
+/* Presence of the linux/dma-buf.h header, which provides DMA-BUF
+ * support for buffer sharing between different devices in Linux.
+ * Linux (kernel 3.3)
+ */
+#ifdef __linux__
+#  include <linux/version.h>
+#  if LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)
+#    define HAVE_LINUX_DMA_BUF_H 1
+#  endif
+#endif

From 38e6ad206a499e447feeca9d793c4167bfe335a6 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:27:35 +0200
Subject: [PATCH 102/166] Add HAVE_MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS

---
 .../HAVE_MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS.h    | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS.h
new file mode 100644
index 00000000..1e50286d
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS.h
@@ -0,0 +1,12 @@
+// HAVE_MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
+
+#undef HAVE_MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
+
+/* Presence of the MMAL (Multimedia Abstraction Layer) parameter
+ * MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS, used for managing video
+ * callbacks on Raspberry Pi and similar platforms.
+ * Since Raspberry Pi (2013), predefined by MMAL
+ */
+#ifdef MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
+#  define HAVE_MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS 1
+#endif

From c77590bff48f09f7ab23d40491348d6a85f82426 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:27:47 +0200
Subject: [PATCH 103/166] Add HAVE_MMXEXT

---
 .../libbuild2/autoconf/checks/HAVE_MMXEXT.h          | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h
new file mode 100644
index 00000000..63b01834
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h
@@ -0,0 +1,12 @@
+// HAVE_MMXEXT
+
+#undef HAVE_MMXEXT
+
+/* Presence of MMXEXT instructions, which are extensions to the original
+ * MMX instruction set, available on AMD processors starting from K6-2.
+ * Since glibc 2.0 (x86), FreeBSD (x86), OpenBSD (x86), NetBSD (x86),
+ * MacOS 10.04 (x86)
+ */
+#if defined(__MMX__)
+#  define HAVE_MMXEXT 1
+#endif

From 89d27bc5ce92d3121bb3874ec71c868d3004899d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:28:31 +0200
Subject: [PATCH 104/166] Add HAVE_MM_EMPTY

---
 .../libbuild2/autoconf/checks/HAVE_MM_EMPTY.h         | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MM_EMPTY.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MM_EMPTY.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MM_EMPTY.h
new file mode 100644
index 00000000..0bb1901e
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MM_EMPTY.h
@@ -0,0 +1,11 @@
+// HAVE_MM_EMPTY
+
+#undef HAVE_MM_EMPTY
+
+/* Presence of the _mm_empty() function (from <mmintrin.h>), associated
+ * with MMX technology, specifically multimedia extensions found in
+ * x86 architecture systems.
+ */
+#if defined(__MMX__)
+#  define HAVE_MM_EMPTY 1
+#endif

From 4abd7e7bb7b2677e85f1f7db184472fd3a41d840 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:28:51 +0200
Subject: [PATCH 105/166] Add HAVE_MSA

---
 .../libbuild2/autoconf/checks/HAVE_MSA.h               | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MSA.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MSA.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MSA.h
new file mode 100644
index 00000000..eabc769e
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MSA.h
@@ -0,0 +1,10 @@
+// HAVE_MSA
+
+#undef HAVE_MSA
+
+/* Presence of MIPS SIMD Architecture (MSA), which
+ * provides SIMD instructions for MIPS processors.
+ */
+#if defined(__mips_msa)
+#  define HAVE_MSA 1
+#endif

From 1df659c37c083d7d8ad33d2a3a3eec4b8c746f5d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:29:12 +0200
Subject: [PATCH 106/166] Add HAVE_OS2THREADS

---
 .../libbuild2/autoconf/checks/HAVE_OS2THREADS.h        | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_OS2THREADS.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_OS2THREADS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_OS2THREADS.h
new file mode 100644
index 00000000..ff293745
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_OS2THREADS.h
@@ -0,0 +1,10 @@
+// HAVE_OS2THREADS
+
+#undef HAVE_OS2THREADS
+
+/* Presence of OS/2 threads support,
+ * specific to the OS/2 operating system.
+ */
+#ifdef __OS2__
+#  define HAVE_OS2THREADS 1
+#endif

From 13487fbf2f49afab9e322588684b93c62a5087eb Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:29:13 +0200
Subject: [PATCH 107/166] Add HAVE_PEEKNAMEDPIPE

---
 .../libbuild2/autoconf/checks/HAVE_PEEKNAMEDPIPE.h     | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PEEKNAMEDPIPE.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PEEKNAMEDPIPE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PEEKNAMEDPIPE.h
new file mode 100644
index 00000000..d0a3ac2e
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PEEKNAMEDPIPE.h
@@ -0,0 +1,10 @@
+// HAVE_PEEKNAMEDPIPE
+
+#undef HAVE_PEEKNAMEDPIPE
+
+/* Presence of OS/2 threads support,
+ * specific to the OS/2 operating system.
+ */
+#ifdef _WIN32
+#  define HAVE_PEEKNAMEDPIPE 1
+#endif

From dc2fc4ed3662698ff41d24c44270e244bc44e7df Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:29:38 +0200
Subject: [PATCH 108/166] Add HAVE_PPC4XX

---
 .../libbuild2/autoconf/checks/HAVE_PPC4XX.h            | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PPC4XX.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PPC4XX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PPC4XX.h
new file mode 100644
index 00000000..12ba825d
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PPC4XX.h
@@ -0,0 +1,10 @@
+// HAVE_PPC4XX
+
+#undef HAVE_PPC4XX
+
+/* Presence of PowerPC 4xx processors,
+ * typically found in embedded systems.
+ */
+#if defined(__powerpc__) && defined(__PPC4XX__)
+#  define HAVE_PPC4XX 1
+#endif

From 01e0e716f4cb05b6fcc713966f736a453c0df2ae Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:29:50 +0200
Subject: [PATCH 109/166] Add HAVE_RDTSC

---
 .../libbuild2/autoconf/checks/HAVE_RDTSC.h           | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h
new file mode 100644
index 00000000..33d96bc5
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h
@@ -0,0 +1,12 @@
+// HAVE_RDTSC
+
+#undef HAVE_RDTSC
+
+/* Presence of RDTSC (Read Time-Stamp Counter) instruction on x86
+ * processors, which reads the number of CPU cycles since the last reset.
+ * Since glibc 2.0 (x86), FreeBSD (x86), OpenBSD (x86), NetBSD (x86),
+ * MacOS 10.04 (x86)
+ */
+#if defined(__i386__) || defined(__x86_64__)
+#  define HAVE_RDTSC 1
+#endif

From 2ad1a35b476c22a2be40143e1586f84c64536546 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:32:36 +0200
Subject: [PATCH 110/166] Tweak HAVE_RDTSC

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h
index 33d96bc5..7e997c98 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h
@@ -7,6 +7,6 @@
  * Since glibc 2.0 (x86), FreeBSD (x86), OpenBSD (x86), NetBSD (x86),
  * MacOS 10.04 (x86)
  */
-#if defined(__i386__) || defined(__x86_64__)
+#if defined(__i386__)
 #  define HAVE_RDTSC 1
 #endif

From 473c16936175cf1ca66b47b1830676d6bcf7e6b4 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:32:41 +0200
Subject: [PATCH 111/166] Add HAVE_UDPLITE_H

---
 .../libbuild2/autoconf/checks/HAVE_UDPLITE_H.h     | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_UDPLITE_H.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_UDPLITE_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_UDPLITE_H.h
new file mode 100644
index 00000000..911d39f9
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_UDPLITE_H.h
@@ -0,0 +1,14 @@
+// HAVE_UDPLITE_H
+
+#undef HAVE_UDPLITE_H
+
+/* Presence of udplite.h, used for UDP-Lite protocol, which offers
+ * partial error checking for better performance in lossy networks.
+ * Since Linux kernel 2.6.20 (2007)
+ */
+#ifdef __linux__
+#  include <linux/version.h>
+#  if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+#    define HAVE_UDPLITE_H 1
+#  endif
+#endif

From 3c3fad59bc5388eca84df5145401f4f65ec79a97 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:33:03 +0200
Subject: [PATCH 112/166] Add HAVE_UWP

---
 .../libbuild2/autoconf/checks/HAVE_UWP.h               | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_UWP.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_UWP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_UWP.h
new file mode 100644
index 00000000..2ab03670
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_UWP.h
@@ -0,0 +1,10 @@
+// HAVE_UWP
+
+#undef HAVE_UWP
+
+/* Presence of Universal Windows Platform (UWP) support.
+ * Since Windows 8
+ */
+#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
+#  define HAVE_UWP 1
+#endif

From 06ab1d070825e5f55127ddf926e8bd15135dec68 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:33:16 +0200
Subject: [PATCH 113/166] Add HAVE_VFP

---
 .../libbuild2/autoconf/checks/HAVE_VFP.h               | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFP.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFP.h
new file mode 100644
index 00000000..759f2ad4
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFP.h
@@ -0,0 +1,10 @@
+// HAVE_VFP
+
+#undef HAVE_VFP
+
+/* Presence of Vector Floating Point (VFP), which is an extension
+ * for ARM processors providing floating-point arithmetic instructions.
+ */
+#ifdef __ARM_VFP__
+#  define HAVE_VFP 1
+#endif

From afbb4dc817be5f07379e2fc3c37a920f323e5668 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:41:06 +0200
Subject: [PATCH 114/166] Add HAVE_VFPV3

---
 .../libbuild2/autoconf/checks/HAVE_VFPV3.h               | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFPV3.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFPV3.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFPV3.h
new file mode 100644
index 00000000..8164744a
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFPV3.h
@@ -0,0 +1,9 @@
+// HAVE_VFPV3
+
+#undef HAVE_VFPV3
+
+/* Presence of VFP v3 on ARM platforms.
+ */
+#if defined(__VFP_FP__) && defined(__ARM_ARCH_7A__)
+#  define HAVE_VFPV3 1
+#endif

From f5c4c8ae9ecef461bc1d0d15790fbe3a5b88e8ec Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:41:14 +0200
Subject: [PATCH 115/166] Add HAVE_VFPV4

---
 .../libbuild2/autoconf/checks/HAVE_VFPV4.h               | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFPV4.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFPV4.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFPV4.h
new file mode 100644
index 00000000..2b58ea7e
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFPV4.h
@@ -0,0 +1,9 @@
+// HAVE_VFPV4
+
+#undef HAVE_VFPV4
+
+/* Presence of VFP v4 on ARM platforms.
+ */
+#if defined(__VFP_FP__) && defined(__ARM_ARCH_8A__)
+#  define HAVE_VFPV4 1
+#endif

From 8c9a0484a8fde00782d2e8e75482b4f3a3211043 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:41:20 +0200
Subject: [PATCH 116/166] Add HAVE_VFP_ARGS

---
 .../libbuild2/autoconf/checks/HAVE_VFP_ARGS.h          | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFP_ARGS.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFP_ARGS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFP_ARGS.h
new file mode 100644
index 00000000..e48daa78
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VFP_ARGS.h
@@ -0,0 +1,10 @@
+// HAVE_VFP_ARGS
+
+#undef HAVE_VFP_ARGS
+
+/* If the system passes arguments to functions using
+ * VFP (Vector Floating Point) registers, common on ARM systems.
+ */
+#ifdef __ARM_PCS_VFP
+#  define HAVE_VFP_ARGS 1
+#endif

From 8945ff4aacd43a82351016d684fa460188ecf543 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:41:30 +0200
Subject: [PATCH 117/166] Add HAVE_VSX

---
 .../libbuild2/autoconf/checks/HAVE_VSX.h               | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VSX.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VSX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VSX.h
new file mode 100644
index 00000000..257b33e6
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_VSX.h
@@ -0,0 +1,10 @@
+// HAVE_VSX
+
+#undef HAVE_VSX
+
+/* Presence of Vector Scalar Extension (VSX) support, an extension to
+ * the PowerPC architecture that enhances SIMD and floating-point operations.
+ */
+#ifdef __VSX__
+#  define HAVE_VSX 1
+#endif

From df7dccab2db9a4ec29db3150f2bfa3bd3a4fe866 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:41:44 +0200
Subject: [PATCH 118/166] Add HAVE_WINRT

---
 .../libbuild2/autoconf/checks/HAVE_WINRT.h             | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINRT.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINRT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINRT.h
new file mode 100644
index 00000000..6a50a724
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_WINRT.h
@@ -0,0 +1,10 @@
+// HAVE_WINRT
+
+#undef HAVE_WINRT
+
+/* Presence of Windows Runtime (WinRT) APIs, used for building
+ * Universal Windows Platform (UWP) applications.
+ */
+#ifdef __cplusplus_winrt
+#  define HAVE_WINRT 1
+#endif

From 1f44db0f05c0daa370e85d2a3da3b9dcc16134ba Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:44:47 +0200
Subject: [PATCH 119/166] Add HAVE_X86ASM

---
 .../libbuild2/autoconf/checks/HAVE_X86ASM.h            | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_X86ASM.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_X86ASM.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_X86ASM.h
new file mode 100644
index 00000000..6195de02
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_X86ASM.h
@@ -0,0 +1,10 @@
+// HAVE_X86ASM
+
+#undef HAVE_X86ASM
+
+/* Presence of x86 assembly support, ensuring that the system can
+ * execute inline assembly or external assembly for x86 processors.
+ */
+#if defined(__i386__)
+#  define HAVE_X86ASM 1
+#endif

From 4a775ac0d9bb3b0a60de793d5dbd3b32c8a98fa2 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:44:53 +0200
Subject: [PATCH 120/166] Add HAVE_XFORM_ASM

---
 .../libbuild2/autoconf/checks/HAVE_XFORM_ASM.h         | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XFORM_ASM.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XFORM_ASM.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XFORM_ASM.h
new file mode 100644
index 00000000..e6526958
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XFORM_ASM.h
@@ -0,0 +1,10 @@
+// HAVE_XFORM_ASM
+
+#undef HAVE_XFORM_ASM
+
+/* Presence of transformation-related assembly optimizations,
+ * typically for image or video processing tasks.
+ */
+#ifdef __XFORM_ASM__
+#  define HAVE_XFORM_ASM 1
+#endif

From 64f4c2dc6b220796ca4ad69ab0ff70ca22040fef Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 10 Sep 2024 19:45:08 +0200
Subject: [PATCH 121/166] Add HAVE_XMM_CLOBBERS

---
 .../autoconf/checks/HAVE_XMM_CLOBBERS.h       | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XMM_CLOBBERS.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XMM_CLOBBERS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XMM_CLOBBERS.h
new file mode 100644
index 00000000..52e808ce
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XMM_CLOBBERS.h
@@ -0,0 +1,26 @@
+// HAVE_XMM_CLOBBERS : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_XMM_CLOBBERS
+
+/* Checks whether the system allows for the use of XMM registers (used in SSE)
+ * to be clobbered by inline assembly instructions. It ensures that the
+ * compiler knows which registers are being modified.
+ * Since Linux, FreeBSD, OpenBSD, NetBSD, MacOS 10.6, Solaris,
+ * Windows, MinGW
+ */
+#if defined(__linux__)                  || \
+    defined(__FreeBSD__)                || \
+    defined(__OpenBSD__)                || \
+    defined(__NetBSD__)                 || \
+    defined(__MINGW32__)                || \
+    defined(__CYGWIN__)                 || \
+    (defined(__sun) && defined(__SVR4)) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)
+#  if defined(__SSE__) && defined(__x86_64__)
+#    define HAVE_XMM_CLOBBERS 1
+#  endif
+#endif

From 8bc44e2fae54806886e5ed0070018e8bb91598ce Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Wed, 11 Sep 2024 12:19:06 +0200
Subject: [PATCH 122/166] Add HAVE_ELF_AUX_INFO

---
 .../autoconf/checks/HAVE_ELF_AUX_INFO.h          | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ELF_AUX_INFO.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ELF_AUX_INFO.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ELF_AUX_INFO.h
new file mode 100644
index 00000000..c32ad080
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ELF_AUX_INFO.h
@@ -0,0 +1,16 @@
+// HAVE_ELF_AUX_INFO : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_ELF_AUX_INFO
+
+/* Presence of the elf_aux_info() function, which retrieves information from
+ * the auxiliary vector in ELF binaries. It is specific to FreeBSD and is used
+ * to query system information at runtime, similar to getauxval() on Linux.
+ * Since FreeBSD 7.0
+ */
+#if BUILD2_AUTOCONF_FREEBSD_PREREQ(7, 0)
+#define HAVE_ELF_AUX_INFO 1
+#endif

From a1a5be17fe40fa48bae0ee4142068360e713d51b Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Wed, 11 Sep 2024 17:15:06 +0200
Subject: [PATCH 123/166] Tweak HAVE_ATAN2 & HAVE_ATAN2F.

---
 .../libbuild2/autoconf/checks/HAVE_ATAN2.h    | 21 ++++++++++++-------
 .../libbuild2/autoconf/checks/HAVE_ATAN2F.h   | 21 ++++++++++++-------
 2 files changed, 26 insertions(+), 16 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h
index dcd95b96..b48535c1 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2.h
@@ -2,15 +2,20 @@
 
 #undef HAVE_ATAN2
 
-/* Since ANSI C89/ISO C99, OpenBSD 2.6
+/* Presence of the atan2() function, which is a
+ * non-standard POSIX function used to set the name of a thread.
+ * Since glibc 2.0, FreeBSD 1.0, OpenBSD 1.0, NetBSD 1.0, MacOS 10.0
+ * Solaris 2.0, Windows, MinGW
  */
-#if (!defined(BUILD2_AUTOCONF_MACOS) && !defined(__NetBSD__) && !defined(__sun)) && \
-    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
-    BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
-    BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
-    BUILD2_AUTOCONF_MINGW_PREREQ(6, 0) || \
-    (defined(__sun) && defined(__SVR4))
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_ATAN2 1
 #endif
 
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h
index 4001aae7..698812ee 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN2F.h
@@ -2,15 +2,20 @@
 
 #undef HAVE_ATAN2F
 
-/* Since ANSI C89/ISO C99, OpenBSD 2.6
+/* Presence of the atan2f() function, which is a
+ * non-standard POSIX function used to set the name of a thread.
+ * Since glibc 2.0, FreeBSD 1.0, OpenBSD 1.0, NetBSD 1.0, MacOS 10.0
+ * Solaris 2.0, Windows, MinGW
  */
-#if (!defined(BUILD2_AUTOCONF_MACOS) && !defined(__NetBSD__) && !defined(__sun)) && \
-    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 1) || \
-    BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
-    BUILD2_AUTOCONF_MACOS_PREREQ(10, 10) || \
-    BUILD2_AUTOCONF_MINGW_PREREQ(6, 0) || \
-    (defined(__sun) && defined(__SVR4))
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_ATAN2F 1
 #endif
 

From 6a1930a28c889d7dd645801632237bdaea230db1 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Wed, 11 Sep 2024 17:15:13 +0200
Subject: [PATCH 124/166] Add HAVE_ALIGNED_STACK

---
 .../autoconf/checks/HAVE_ALIGNED_STACK.h      | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ALIGNED_STACK.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ALIGNED_STACK.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ALIGNED_STACK.h
new file mode 100644
index 00000000..6dedd16e
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ALIGNED_STACK.h
@@ -0,0 +1,52 @@
+// HAVE_ALIGNED_STACK : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_ALIGNED_STACK
+
+/* Platform or compiler ensures a properly aligned stack for functions,
+ * which is necessary for optimal performance
+ */
+// Linux: Supports x86, x86_64, ARM (32-bit and 64-bit), SPARC
+#if defined(__linux__) \
+  && (defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__aarch64__) || defined(__sparc__))
+#  define HAVE_ALIGNED_STACK 1
+#endif
+
+// Windows: Supports x86, x86_64, ARM (32-bit and 64-bit)
+#if defined(_WIN32) \
+  && (defined(_M_IX86) || defined(_M_X64) || defined(_M_ARM) || defined(_M_ARM64))
+#  define HAVE_ALIGNED_STACK 1
+#endif
+
+// macOS: Supports x86_64 and ARM64
+#if defined(__APPLE__) \
+  && (defined(__x86_64__) || defined(__aarch64__))
+#  define HAVE_ALIGNED_STACK 1
+#endif
+
+// FreeBSD: Supports x86_64, ARM (32-bit and 64-bit), SPARC64
+#if defined(__FreeBSD__) \
+  && (defined(__x86_64__) || defined(__arm__) || defined(__aarch64__) || defined(__sparc64__))
+#  define HAVE_ALIGNED_STACK 1
+#endif
+
+// OpenBSD: Supports x86_64, ARM (32-bit and 64-bit)
+#if defined(__OpenBSD__) \
+  && (defined(__x86_64__) || defined(__arm__) || defined(__aarch64__))
+#  define HAVE_ALIGNED_STACK 1
+#endif
+
+// NetBSD: Supports x86_64, ARM (32-bit and 64-bit)
+#if defined(__NetBSD__) \
+  && (defined(__x86_64__) || defined(__arm__) || defined(__aarch64__))
+#  define HAVE_ALIGNED_STACK 1
+#endif
+
+// Solaris: Supports x86_64 and SPARC64
+#if defined(__sun) \
+  && (defined(__x86_64__) || defined(__sparc64__))
+#  define HAVE_ALIGNED_STACK 1
+#endif

From 3075b26c088aab2af7a1af053a275cb347c5c3c1 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Wed, 11 Sep 2024 17:15:15 +0200
Subject: [PATCH 125/166] Add HAVE_ATAN

---
 .../libbuild2/autoconf/checks/HAVE_ATAN.h     | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN.h
new file mode 100644
index 00000000..1d3f2462
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATAN.h
@@ -0,0 +1,21 @@
+// HAVE_ATAN : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_ATAN
+
+/* Presence of the atan2() function, which is a
+ * non-standard POSIX function used to set the name of a thread.
+ * Since glibc 2.0, FreeBSD 1.0, OpenBSD 1.0, NetBSD 1.0, MacOS 10.0
+ * Solaris 2.0, Windows, MinGW
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_ATAN 1
+#endif
+

From a16446064fa769f42fdbc519f0f45cf71831f308 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Wed, 11 Sep 2024 17:15:16 +0200
Subject: [PATCH 126/166] Add HAVE_ATANF

---
 .../libbuild2/autoconf/checks/HAVE_ATANF.h    | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATANF.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATANF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATANF.h
new file mode 100644
index 00000000..644a2bb5
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ATANF.h
@@ -0,0 +1,21 @@
+// HAVE_ATANF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#undef HAVE_ATANF
+
+/* Presence of the atan2() function, which is a
+ * non-standard POSIX function used to set the name of a thread.
+ * Since glibc 2.0, FreeBSD 1.0, OpenBSD 1.0, NetBSD 1.0, MacOS 10.0
+ * Solaris 2.0, Windows, MinGW
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 0)  || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+#  define HAVE_ATANF 1
+#endif
+

From cae282343a43c9788a89e8bc8d15dc6ca69ca33d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Wed, 11 Sep 2024 17:15:17 +0200
Subject: [PATCH 127/166] Add HAVE_MMX

---
 .../libbuild2/autoconf/checks/HAVE_MMX.h             | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h
new file mode 100644
index 00000000..a7f692df
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h
@@ -0,0 +1,12 @@
+// HAVE_MMX
+
+#undef HAVE_MMX
+
+/* Presence of MMX instructions, which are extensions to the original
+ * MMX instruction set, available on AMD processors starting from K6-2.
+ * Since glibc 2.0 (x86), FreeBSD (x86), OpenBSD (x86), NetBSD (x86),
+ * MacOS 10.04 (x86)
+ */
+#if defined(__MMX__)
+#  define HAVE_MMX 1
+#endif

From 7b265be3e0d5ffb94b07bf9923340a98846dab6b Mon Sep 17 00:00:00 2001
From: Ryan <ryan@helloryan.se>
Date: Wed, 11 Sep 2024 17:52:18 +0200
Subject: [PATCH 128/166] HAVE_LLRINT HAVE_LLRINTF HAVE_LRINT HAVE_LRINTF
 HAVE_LSTAT HAVE_MMI HAVE_RINT HAVE_TRUNC HAVE_TRUNCF

---
 .../libbuild2/autoconf/checks/HAVE_LLRINT.h    | 18 ++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_LLRINTF.h   | 18 ++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_LRINT.h     | 18 ++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_LRINTF.h    | 18 ++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_LSTAT.h     | 13 +++++++++++++
 .../libbuild2/autoconf/checks/HAVE_MMI.h       | 11 +++++++++++
 .../libbuild2/autoconf/checks/HAVE_RINT.h      | 18 ++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_TRUNC.h     | 18 ++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_TRUNCF.h    | 18 ++++++++++++++++++
 9 files changed, 150 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LLRINT.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LLRINTF.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LRINT.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LRINTF.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSTAT.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMI.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RINT.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TRUNC.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TRUNCF.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LLRINT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LLRINT.h
new file mode 100644
index 00000000..b3709be4
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LLRINT.h
@@ -0,0 +1,18 @@
+// HAVE_LLRINT : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LLRINT
+
+/* Since glibc 2.1, FreeBSD 5.4, OpenBSD 3.9, NetBSD 3.1 and MacOS, Win32.
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 4)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200601) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(3, 1)    || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)
+#  define HAVE_LLRINT 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LLRINTF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LLRINTF.h
new file mode 100644
index 00000000..d943f29d
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LLRINTF.h
@@ -0,0 +1,18 @@
+// HAVE_LLRINTF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LLRINTF
+
+/* Since glibc 2.1, FreeBSD 5.4, OpenBSD 3.9, NetBSD 3.1 and MacOS, Win32.
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 4)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200601) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(3, 1)    || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)
+#  define HAVE_LLRINTF 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LRINT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LRINT.h
new file mode 100644
index 00000000..604585aa
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LRINT.h
@@ -0,0 +1,18 @@
+// HAVE_LRINT : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LRINT
+
+/* Since glibc 2.1, FreeBSD 5.4, OpenBSD 3.9, NetBSD 3.1 and MacOS, Win32.
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 4)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200601) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(3, 1)    || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)
+#  define HAVE_LRINT 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LRINTF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LRINTF.h
new file mode 100644
index 00000000..be4bded9
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LRINTF.h
@@ -0,0 +1,18 @@
+// HAVE_LRINTF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LRINTF
+
+/* Since glibc 2.1, FreeBSD 5.4, OpenBSD 3.9, NetBSD 3.1 and MacOS, Win32.
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 4)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200601) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(3, 1)    || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)
+#  define HAVE_LRINTF 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSTAT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSTAT.h
new file mode 100644
index 00000000..9d8a2a6f
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSTAT.h
@@ -0,0 +1,13 @@
+// HAVE_LSTAT : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_LSTAT
+
+/* Since glibc 2.19.
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)
+#  define HAVE_LSTAT 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMI.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMI.h
new file mode 100644
index 00000000..2ed0c57f
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMI.h
@@ -0,0 +1,11 @@
+// HAVE_MMI
+
+#undef HAVE_MMI
+
+/* Presence of MMI (Multimedia Instructions), typically used in specific
+ * CPU architectures for multimedia processing, like in certain MIPS processors.
+ * Linux
+ */
+#if defined(__mips__)
+#  define HAVE_MMI 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RINT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RINT.h
new file mode 100644
index 00000000..b60d1c2a
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RINT.h
@@ -0,0 +1,18 @@
+// HAVE_RINT : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_RINT
+
+/* Since glibc 2.19, FreeBSD 1.0, OpenBSD 2.2, NetBSD 1.3 and MacOS, Win32.
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199712) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3)    || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)
+#  define HAVE_RINT 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TRUNC.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TRUNC.h
new file mode 100644
index 00000000..d5e1ce60
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TRUNC.h
@@ -0,0 +1,18 @@
+// HAVE_TRUNC : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_TRUNC
+
+/* Since glibc 2.1, FreeBSD 5.3, OpenBSD 4.0, NetBSD 4.0 and MacOS, Win32.
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 3)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200611) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(4, 0)    || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)
+#  define HAVE_TRUNC 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TRUNCF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TRUNCF.h
new file mode 100644
index 00000000..604967a9
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_TRUNCF.h
@@ -0,0 +1,18 @@
+// HAVE_TRUNCF : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
+
+#undef HAVE_TRUNCF
+
+/* Since glibc 2.1, FreeBSD 5.3, OpenBSD 4.0, NetBSD 4.0 and MacOS, Win32.
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 3)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200611) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(4, 0)    || \
+    defined(BUILD2_AUTOCONF_MACOS)         || \
+    defined(_WIN32)
+#  define HAVE_TRUNCF 1
+#endif

From 3c0ff9e3fb97bfdf3c609573eef9cc3248592056 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Wed, 11 Sep 2024 20:22:32 +0200
Subject: [PATCH 129/166] Tweak HAVE_LOCALTIME_R

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCALTIME_R.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCALTIME_R.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCALTIME_R.h
index ab3a6c39..73368dba 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCALTIME_R.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOCALTIME_R.h
@@ -15,7 +15,6 @@
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 2) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(2, 0) || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
-    defined(_WIN32) || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_LOCALTIME_R 1
 #endif

From e1c4a0d23c4c3db3cada376b553f120957142c32 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 12 Sep 2024 12:36:38 +0200
Subject: [PATCH 130/166] HAVE_BCRYPT: Make available on more platforms (and
 add context).

---
 .../libbuild2/autoconf/checks/HAVE_BCRYPT.h   | 23 +++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_BCRYPT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_BCRYPT.h
index f31f286b..1ad872f0 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_BCRYPT.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_BCRYPT.h
@@ -2,10 +2,25 @@
 
 #undef HAVE_BCRYPT
 
-/* Since Version 3 AT&T UNIX, 4.3BSD (OpenBSD), Linux/glibc (no version info)
+/* Presence of bcrypt functionality, specifically cryptographic operations.
+ * This check in many cases refers to the Windows Cryptography API: Next Generation (CNG),
+ * but other times on the *nix bcrypt library.
+ *
+ * - Linux (glibc 2.0), and libxcrypt is available by default on many Linux distributions.
+ * - FreeBSD (5.0) includes bcrypt as a default password hashing algorithm, implemented in crypt() and libcrypt.
+ * - OpenBSD (2.1) is the originator of the bcrypt password hashing algorithm and has it included by default in the system.
+ * - NetBSD (3.5) includes bcrypt as part of its password hashing implementations, using libcrypt.
+ * - MacOS (10.7) uses the libcrypt library.
+ * - Solaris has bcrypt available through libcrypt.
+ * - Windows (since Vista and Windows Server 2008) through 'Windows CNG'
  */
-#if defined(__OpenBSD__) || \
-    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
-    BUILD2_AUTOCONF_MINGW_PREREQ(2, 0)
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)     || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 0)   || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(3, 5)    || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)    || \
+    BUILD2_AUTOCONF_MINGW_PREREQ(2, 0)     || \
+    defined(_WIN32)                        || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_BCRYPT 1
 #endif

From 1f2bae328244b8010dd54ef7d244e73ac2291cb6 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 12 Sep 2024 12:37:29 +0200
Subject: [PATCH 131/166] HAVE_MALLOC_H: Don't check glibc version, since even
 though it is deprecated it seems to exists for an unforseen future.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MALLOC_H.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MALLOC_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MALLOC_H.h
index c461adfa..ee284f96 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MALLOC_H.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MALLOC_H.h
@@ -5,7 +5,7 @@
 /* Presence of malloc.h.
  * Supported on Linux (deprecated since glibc 2.0), Windows * Mingw
  */
-#if (defined(__GLIBC__) && __GLIBC__ < 2) || \
+#if defined(__GLIBC__) || \
     defined(_WIN32) || \
     defined(__MINGW32__)
 #  define HAVE_MALLOC_H 1

From a3202614fd81efdb3e92b4ccba19ed60f3c66dd1 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Thu, 12 Sep 2024 11:56:26 +0200
Subject: [PATCH 132/166] Remove HAVE_LIBDRM_GETFB2, it's library specific and
 should instead be a header-check in buildfile for 'drm/drm.h'

---
 .../libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h | 14 --------------
 1 file changed, 14 deletions(-)
 delete mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h
deleted file mode 100644
index 055676c0..00000000
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBDRM_GETFB2.h
+++ /dev/null
@@ -1,14 +0,0 @@
-// HAVE_LIBDRM_GETFB2
-
-#undef HAVE_LIBDRM_GETFB2
-
-/* Presence of the libdrm's getfb2() function, which is part of
- * Direct Rendering Manager (DRM) used for managing graphics on Linux.
- * Linux (libdrm 2.4.91)
- */
-#if defined(__linux__)
-#  include <drm/drm.h>
-#  ifdef DRM_IOCTL_MODE_GETFB2
-#    define HAVE_LIBDRM_GETFB2 1
-#  endif
-#endif

From d87921b72723806e4d4dbfbeb2ef4c0bc5e2e34f Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 18 Oct 2024 12:31:43 +0200
Subject: [PATCH 133/166] Various fixes, mainly for macos.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h    | 1 +
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h   | 1 +
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ERF.h     | 1 +
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETOPT.h  | 1 +
 .../libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h    | 6 +++---
 libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h    | 3 ++-
 6 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
index 0a9bbf9a..a70611fd 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRT.h
@@ -9,6 +9,7 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 0)  || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
     defined(_WIN32) || \
     defined(__MINGW32__) || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
index ef43b196..e34ae3de 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_CBRTF.h
@@ -9,6 +9,7 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 0) || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
     defined(_WIN32) || \
     defined(__MINGW32__) || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ERF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ERF.h
index 1d572657..aaf309f6 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ERF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ERF.h
@@ -9,6 +9,7 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0)  || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
     defined(_WIN32) || \
     defined(__MINGW32__) || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETOPT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETOPT.h
index d7b07a1a..75c60e64 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETOPT.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETOPT.h
@@ -9,6 +9,7 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_GETOPT 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h
index 1c035a8a..2ebb9d04 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h
@@ -11,8 +11,8 @@
  * Since glibc 2.12, FreeBSD 7.0, NetBSD 8.0, MacOS 10.6
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 12) || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(7, 0) || \
-    BUILD2_AUTOCONF_NETBSD_PREREQ(8, 0) || \
-    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(20131101) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(7, 0)
 #  define HAVE_PTHREAD_SET_NAME_NP 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h b/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
index 11f200b6..af138581 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
@@ -16,10 +16,11 @@
       defined(__FreeBSD__)                || \
       defined(__OpenBSD__)                || \
       defined(__NetBSD__)                 || \
-      defined(__APPLE__)                  || \
       (defined(__sun) && defined(__SVR4)) || \
       defined(__CYGWIN__)
+
 #     include <sys/socket.h>
+
       /* If available, we do nothing. */
 #  elif defined(_WIN32)
       /* While socklen_t is declared in <ws2tcpip.h>, including this header is

From 2567175cd109f6c96b089f4c9f76dab217902263 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Sat, 19 Oct 2024 19:51:05 +0200
Subject: [PATCH 134/166] HAVE_SECTION_DATA_REL_RO: Not available for macos.

---
 .../libbuild2/autoconf/checks/HAVE_SECTION_DATA_REL_RO.h   | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECTION_DATA_REL_RO.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECTION_DATA_REL_RO.h
index d05ecf6c..c242097c 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECTION_DATA_REL_RO.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SECTION_DATA_REL_RO.h
@@ -8,11 +8,12 @@
 
 /* Presence of the .data.rel.ro section, which is used for
  * placing read-only data that may be relocated at runtime.
- * Since glibc 2.3, FreeBSD 11.0, MacOS 10.12, Solaris 10
+ * Since glibc 2.3, FreeBSD 7.0, Solaris 10
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 3)    || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(11, 0)  || \
-    BUILD2_AUTOCONF_MACOS_PREREQ(10, 12) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(201609) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(7, 0)   || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(7, 0)    || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_SECTION_DATA_REL_RO 1
 #endif

From 0ea2d686474b289311817cfdaa32bfb4e90f663b Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 15 Oct 2024 01:46:57 +0200
Subject: [PATCH 135/166] HAVE_SYSCTL: Fix 'older than' check for GLIBC.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYSCTL.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYSCTL.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYSCTL.h
index 41c324ec..17e6fa90 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYSCTL.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYSCTL.h
@@ -12,6 +12,6 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 3)   || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(2, 0)    || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)    || \
-    !BUILD2_AUTOCONF_GLIBC_PREREQ(2, 32)
+    (defined(__GLIBC__) && defined(__GLIBC_MINOR__) && ((__GLIBC__ << 16) + __GLIBC_MINOR__ <= ((2) << 16) + (31)))
 #  define HAVE_SYSCTL 1
 #endif

From bf6d96dd0fac0e4dbcedbd516ababd05df76736d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 15 Oct 2024 01:47:36 +0200
Subject: [PATCH 136/166] HAVE_X86ASM: Also check MSVC defines.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_X86ASM.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_X86ASM.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_X86ASM.h
index 6195de02..605b8b6c 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_X86ASM.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_X86ASM.h
@@ -5,6 +5,8 @@
 /* Presence of x86 assembly support, ensuring that the system can
  * execute inline assembly or external assembly for x86 processors.
  */
-#if defined(__i386__)
+#if defined(__i386__) || \
+    defined(__x86_64__) || \
+    (defined(_M_IX86) || defined(_M_X64)) && (defined(_MSC_VER) || defined(__GNUC__) || defined(__clang__))
 #  define HAVE_X86ASM 1
 #endif

From 9b49ed85ccd2e0d82085b6e28f36d5a59937f89e Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Sun, 20 Oct 2024 19:24:17 +0200
Subject: [PATCH 137/166] HAVE_ARC4RANDOM_BUF: Not available on linux (unless
 libbsd is installed).

---
 .../libbuild2/autoconf/checks/HAVE_ARC4RANDOM_BUF.h          | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM_BUF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM_BUF.h
index 7fb4a51a..dfeb7a5f 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM_BUF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM_BUF.h
@@ -7,12 +7,11 @@
 #undef HAVE_ARC4RANDOM_BUF
 
 /* Since OpenBSD 2.1, FreeBSD 2.3, NetBSD 2.0, Mac OS X 10.7
- * and glibc 2.36.
+ * and glibc 2.36 (only via libbsd).
  */
 #if BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 3)   || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(2, 0)    || \
-    BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)    || \
-    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 36)
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)
 #  define HAVE_ARC4RANDOM_BUF 1
 #endif

From 621a069277a5a5f61e6613dea517e1092cd7451d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Sun, 20 Oct 2024 19:25:15 +0200
Subject: [PATCH 138/166] HAVE_ARC4RANDOM: Not available on linux (unless
 libbsd is installed).

---
 .../libbuild2/autoconf/checks/HAVE_ARC4RANDOM.h              | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM.h
index ab92bbc1..399cb3e3 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM.h
@@ -7,12 +7,11 @@
 #undef HAVE_ARC4RANDOM
 
 /* Since OpenBSD 2.1, FreeBSD 2.3, NetBSD 2.0, Mac OS X 10.7
- * and glibc 2.36.
+ * and glibc 2.36 (only via libbsd).
  */
 #if BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 3)   || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(2, 0)    || \
-    BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)    || \
-    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 36)
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)
 #  define HAVE_ARC4RANDOM 1
 #endif

From 7fdf94fbdd096a0e74a928ee8596dcc19d2650ba Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 21 Oct 2024 12:28:22 +0200
Subject: [PATCH 139/166] HAVE_ASM_EBP & HAVE_ASM_EBX enabled on x86_64 as
 well.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h | 6 ++++--
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
index d6326224..ac536a4e 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
@@ -2,9 +2,11 @@
 
 #undef HAVE_ASM_EBP
 
-/* x86 excluding ARM, PowerPC, MIPS & RISC-V.
+/* x86 (available on x86_64 under RBP) excluding ARM, PowerPC, MIPS & RISC-V.
  */
-#if defined(__i386__)
+#if defined(__i386__) || \
+    defined(__x86_64__) || \
+    (defined(_M_IX86) || defined(_M_X64))
 #  if !defined(__arm__) && !defined(__powerpc__) && \
       !defined(__ppc__) && \
       !defined(__mips__) && \
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
index 5e56ee7f..2aa693c7 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
@@ -2,9 +2,11 @@
 
 #undef HAVE_ASM_EBX
 
-/* x86 excluding ARM, PowerPC, MIPS & RISC-V.
+/* x86 (available on x86_64 under RBX) excluding ARM, PowerPC, MIPS & RISC-V.
  */
-#if defined(__i386__)
+#if defined(__i386__) || \
+    defined(__x86_64__) || \
+    (defined(_M_IX86) || defined(_M_X64))
 #  if !defined(__arm__) && !defined(__powerpc__) && \
       !defined(__ppc__) && \
       !defined(__mips__) && \

From 503aaaf55990233ced4006b3874775f9ed696064 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 21 Oct 2024 16:29:46 +0200
Subject: [PATCH 140/166] HAVE_MMX & HAVE_MMXEXT are available with MSVC for
 x86 & x86_64.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h    | 5 +++--
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h
index a7f692df..644c5f27 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h
@@ -5,8 +5,9 @@
 /* Presence of MMX instructions, which are extensions to the original
  * MMX instruction set, available on AMD processors starting from K6-2.
  * Since glibc 2.0 (x86), FreeBSD (x86), OpenBSD (x86), NetBSD (x86),
- * MacOS 10.04 (x86)
+ * MacOS 10.04 (x86), MSVC
  */
-#if defined(__MMX__)
+#if defined(__MMX__) || \
+    defined(_M_IX86) || defined(_M_X64)
 #  define HAVE_MMX 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h
index 63b01834..0fd6b3e6 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h
@@ -5,8 +5,9 @@
 /* Presence of MMXEXT instructions, which are extensions to the original
  * MMX instruction set, available on AMD processors starting from K6-2.
  * Since glibc 2.0 (x86), FreeBSD (x86), OpenBSD (x86), NetBSD (x86),
- * MacOS 10.04 (x86)
+ * MacOS 10.04 (x86), MSVC
  */
-#if defined(__MMX__)
+#if defined(__MMXEXT__) || \
+    defined(_M_IX86) || defined(_M_X64)
 #  define HAVE_MMXEXT 1
 #endif

From 4a98dc49ccc1bda23bf1f6fca447ca6716e31b49 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Fri, 25 Oct 2024 23:33:36 +0200
Subject: [PATCH 141/166] socklen_t: Revert accidental change.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h b/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
index af138581..11f200b6 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
@@ -16,11 +16,10 @@
       defined(__FreeBSD__)                || \
       defined(__OpenBSD__)                || \
       defined(__NetBSD__)                 || \
+      defined(__APPLE__)                  || \
       (defined(__sun) && defined(__SVR4)) || \
       defined(__CYGWIN__)
-
 #     include <sys/socket.h>
-
       /* If available, we do nothing. */
 #  elif defined(_WIN32)
       /* While socklen_t is declared in <ws2tcpip.h>, including this header is

From 5fa403abeda237d2cb5236bdf86906da6e478114 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 28 Oct 2024 23:31:06 +0100
Subject: [PATCH 142/166] HAVE_ASM_EBP & HAVE_ASM_EBX not available on Windows.
 HAVE_KCMVIDEOCODECTYPE_HVEC is for MacOS/iOS only.

---
 .../libbuild2/autoconf/checks/HAVE_ASM_EBP.h  | 21 ++++++++++---------
 .../libbuild2/autoconf/checks/HAVE_ASM_EBX.h  | 21 ++++++++++---------
 .../checks/HAVE_KCMVIDEOCODECTYPE_HEVC.h      |  5 ++---
 3 files changed, 24 insertions(+), 23 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
index ac536a4e..5b1a12d4 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
@@ -2,15 +2,16 @@
 
 #undef HAVE_ASM_EBP
 
-/* x86 (available on x86_64 under RBP) excluding ARM, PowerPC, MIPS & RISC-V.
+/* Check for EBP (Extended Base Pointer) support in assembly on x86/x86_64,
+ * excluding unsupported architectures (ARM, PowerPC, MIPS, RISC-V)
+ * and excluding Windows x64 with MSVC due to calling convention limitations.
  */
-#if defined(__i386__) || \
-    defined(__x86_64__) || \
-    (defined(_M_IX86) || defined(_M_X64))
-#  if !defined(__arm__) && !defined(__powerpc__) && \
-      !defined(__ppc__) && \
-      !defined(__mips__) && \
-      !defined(__riscv__) && !defined(__riscv)
-#    define HAVE_ASM_EBP 1
-#  endif
+#if (defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64)) && \
+    !(defined(_WIN32) && defined(_MSC_VER) && defined(_M_X64)) && \
+    !defined(__arm__) && !defined(__aarch64__) && \
+    !defined(__powerpc__) && !defined(__ppc__) && \
+    !defined(__mips__) && !defined(__riscv)
+    #define HAVE_ASM_EBP 1
+#else
+    #define HAVE_ASM_EBP 0
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
index 2aa693c7..f0d9c351 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
@@ -2,15 +2,16 @@
 
 #undef HAVE_ASM_EBX
 
-/* x86 (available on x86_64 under RBX) excluding ARM, PowerPC, MIPS & RISC-V.
+/* Check for EBX (Extended Base Pointer) support in assembly on x86/x86_64,
+ * excluding unsupported architectures (ARM, PowerPC, MIPS, RISC-V)
+ * and excluding Windows x64 with MSVC due to calling convention limitations.
  */
-#if defined(__i386__) || \
-    defined(__x86_64__) || \
-    (defined(_M_IX86) || defined(_M_X64))
-#  if !defined(__arm__) && !defined(__powerpc__) && \
-      !defined(__ppc__) && \
-      !defined(__mips__) && \
-      !defined(__riscv__) && !defined(__riscv)
-#    define HAVE_ASM_EBX 1
-#  endif
+#if (defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64)) && \
+    !(defined(_WIN32) && defined(_MSC_VER) && defined(_M_X64)) && \
+    !defined(__arm__) && !defined(__aarch64__) && \
+    !defined(__powerpc__) && !defined(__ppc__) && \
+    !defined(__mips__) && !defined(__riscv)
+    #define HAVE_ASM_EBX 1
+#else
+    #define HAVE_ASM_EBX 0
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVC.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVC.h
index c8720150..3a89018e 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVC.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_KCMVIDEOCODECTYPE_HEVC.h
@@ -8,9 +8,8 @@
 
 /* HEVC (High-Efficiency Video Coding),
  * also known as H.265 codec, in the media framework.
- * Since MacOS 10.13/iOS 11, Windows 10
+ * Since MacOS 10.13/iOS 11
  */
-#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13) || \
-    (defined(_WIN32) && (_WIN32_WINNT >= _WIN32_WINNT_WIN10))
+#if BUILD2_AUTOCONF_MACOS_PREREQ(10, 13)
 #  define HAVE_KCMVIDEOCODECTYPE_HEVC 1
 #endif

From 45c87be77c66815b9a87733b65eb96f4ba0e370d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 29 Oct 2024 09:27:44 +0100
Subject: [PATCH 143/166] Improve checks (in particular for linux):
 HAVE_DEV_IC_BT8XX_H HAVE_PTHREAD_SETNAME_NP HAVE_PTHREAD_SET_NAME_NP
 HAVE_SLEEP HAVE_STRUCT_SOCKADDR_SA_LEN HAVE_SYS_VIDEOIO_H

---
 .../autoconf/checks/HAVE_DEV_IC_BT8XX_H.h       | 11 ++++++++---
 .../autoconf/checks/HAVE_PTHREAD_SETNAME_NP.h   | 15 +++++++++------
 .../autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h  | 17 ++++++++++-------
 .../libbuild2/autoconf/checks/HAVE_SLEEP.h      | 11 +++++++----
 .../checks/HAVE_STRUCT_SOCKADDR_SA_LEN.h        | 10 ++++------
 .../autoconf/checks/HAVE_SYS_VIDEOIO_H.h        | 16 ++++++++++------
 6 files changed, 48 insertions(+), 32 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h
index aa71a369..0e74d6d7 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_DEV_IC_BT8XX_H.h
@@ -2,10 +2,15 @@
 
 #undef HAVE_DEV_IC_BT8XX_H
 
-/* OpenBSD 2.3, FreeBSD 2.2, glibc 2.19, NetBSD 1.5
+/* Check for dev/ic/bt8xx.h, which provides Brooktree video capture
+ * driver interfaces on BSD-based systems. Available since:
+ * - FreeBSD 2.2+
+ * - OpenBSD 2.3+ (1998)
+ * - NetBSD 1.5+
+ *
+ * This header is not relevant for glibc-based systems.
  */
-#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19) || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 2) || \
+#if BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 2)   || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199805) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5)
 #  define HAVE_DEV_IC_BT8XX_H 1
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SETNAME_NP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SETNAME_NP.h
index 0461a43b..8c354b4d 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SETNAME_NP.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SETNAME_NP.h
@@ -6,13 +6,16 @@
 
 #undef HAVE_PTHREAD_SETNAME_NP
 
-/* Presence of the pthread_setname_np() function, which is a
- * non-standard POSIX function used to set the name of a thread.
- * Since glibc 2.12, FreeBSD 7.0, NetBSD 8.0, MacOS 10.6
+/* Check for the presence of the pthread_setname_np() function,
+ * which sets the name of a thread. This function is available on:
+ * - glibc 2.12+
+ * - FreeBSD 9.0+
+ * - NetBSD 8.0+
+ * - macOS 10.6+
  */
-#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 12) || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(7, 0) || \
-    BUILD2_AUTOCONF_NETBSD_PREREQ(8, 0) || \
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 12)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0)   || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(8, 0)    || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)
 #  define HAVE_PTHREAD_SETNAME_NP 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h
index 2ebb9d04..1f47db47 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_PTHREAD_SET_NAME_NP.h
@@ -6,13 +6,16 @@
 
 #undef HAVE_PTHREAD_SET_NAME_NP
 
-/* Presence of the pthread_set_name_np() function, which is a
- * non-standard POSIX function used to set the name of a thread.
- * Since glibc 2.12, FreeBSD 7.0, NetBSD 8.0, MacOS 10.6
+/* Check for the presence of the pthread_set_name_np() function,
+ * which sets the name of a thread. This is available on:
+ * - glibc 2.12+
+ * - FreeBSD 9.0+
+ * - NetBSD 8.0+
+ * - macOS 10.6+
  */
-#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 12) || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0) || \
-    BUILD2_AUTOCONF_OPENBSD_PREREQ(20131101) || \
-    BUILD2_AUTOCONF_NETBSD_PREREQ(7, 0)
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 12)    || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0)   || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(8, 0)    || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 6)
 #  define HAVE_PTHREAD_SET_NAME_NP 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h
index c6e70123..51bf295b 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h
@@ -6,14 +6,17 @@
 
 #undef HAVE_SLEEP
 
-/* Since Version 4/7 AT&T UNIX.
- * glibc 2.1 (?)
+/* Check for the presence of the sleep() function, which pauses the
+ * program for a specified number of seconds. This function is widely
+ * available on UNIX-like systems, including:
+ * - Linux (all versions with glibc 2.0+)
+ * - FreeBSD 3.0+, NetBSD 1.3+, OpenBSD 2.1+, macOS 10.0+
  */
-#if defined(__linux__)                     || \
+#if defined(__linux__) || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 0)   || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3)    || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 0)    || \
-    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1)
+    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)
 #  define HAVE_SLEEP 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_SA_LEN.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_SA_LEN.h
index 7e133c91..1b500d3b 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_SA_LEN.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_SA_LEN.h
@@ -6,15 +6,13 @@
 
 #undef HAVE_STRUCT_SOCKADDR_SA_LEN
 
-/* Presence of the sa_len field in the sockaddr structure,
+/* Check for the presence of the sa_len field in the sockaddr structure,
  * which defines the length of the address structure.
- * FreeBSD 4.0, OpenBSD 2.0, NetBSD 1.5, MacOS 10
- * Solaris 7
+ * Supported on FreeBSD 4.0, OpenBSD 2.0, NetBSD 1.5, and macOS 10.0+
  */
-#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 0)  || \
+#if BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 0)   || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
-    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5)    || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 0)
 #  define HAVE_STRUCT_SOCKADDR_SA_LEN 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_VIDEOIO_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_VIDEOIO_H.h
index 4616e000..a41d03ae 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_VIDEOIO_H.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_VIDEOIO_H.h
@@ -6,11 +6,15 @@
 
 #undef HAVE_SYS_VIDEOIO_H
 
-/* Presence of sys/videoio.h, which provides an interface for controlling video
- * devices. It is often used for video capture devices, particularly on Unix systems.
- * Since Linux Kernel 2.2 (now deprecated), Solaris
+/* Check for sys/videoio.h presence, which is specific to
+ * Solaris and older Unix systems. On Linux, this header is deprecated,
+ * and video capture uses linux/videodev2.h instead.
  */
-#if defined(__linux__) || \
-    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
-#  define HAVE_SYS_VIDEOIO_H 1
+#if (defined(__sun) && defined(__SVR4)) || defined(__sun__)
+    #define HAVE_SYS_VIDEOIO_H 1
+#elif defined(__linux__)
+    #include <linux/version.h>
+    #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27)
+        #define HAVE_SYS_VIDEOIO_H 1
+    #endif
 #endif

From 34e3fc7a22787476c50b848fc02184057ace101f Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Wed, 30 Oct 2024 11:56:22 +0100
Subject: [PATCH 144/166] BYTE_ORDER: If '__DARWIN_BYTE_ORDER' isn't defined
 (eg. on apple-silicon), so fall back to '__BYTE_ORDER__' check.

---
 .../libbuild2/autoconf/checks/BYTE_ORDER.h         | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h b/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h
index 35ab553d..29d954ce 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h
@@ -43,11 +43,15 @@
 #    define BIG_ENDIAN    4321
 #    define LITTLE_ENDIAN 1234
 #    define BYTE_ORDER    LITTLE_ENDIAN
-#  elif defined(__BYTE_ORDER__) &&       \
-        defined(__ORDER_BIG_ENDIAN__) && \
-        defined(__ORDER_LITTLE_ENDIAN__)
-     /* GCC, Clang (and others, potentially).
-      */
+#  endif
+#endif
+
+/* Fallback: GCC, Clang (specifically apple-silicon and others, potentially).
+ */
+#ifndef BYTE_ORDER
+#  if defined(__BYTE_ORDER__)       && \
+      defined(__ORDER_BIG_ENDIAN__) && \
+      defined(__ORDER_LITTLE_ENDIAN__)
 #    define BYTE_ORDER    __BYTE_ORDER__
 #    define BIG_ENDIAN    __ORDER_BIG_ENDIAN__
 #    define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__

From 54ec7b91699f3a516db69fc7a062f2d5d764a3f3 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Wed, 30 Oct 2024 17:57:19 +0100
Subject: [PATCH 145/166] Tweak some checks that should also be defined as 1 on
 windows.

---
 .../libbuild2/autoconf/checks/HAVE_ACCESS.h           |  3 ++-
 .../libbuild2/autoconf/checks/HAVE_FAST_UNALIGNED.h   |  5 ++++-
 .../libbuild2/autoconf/checks/HAVE_GETADDRINFO.h      |  3 ++-
 .../libbuild2/autoconf/checks/HAVE_GETENV.h           | 11 ++++++-----
 .../libbuild2/autoconf/checks/HAVE_HYPOT.h            |  3 ++-
 .../libbuild2/autoconf/checks/HAVE_LOG10F.h           |  3 ++-
 .../libbuild2/autoconf/checks/HAVE_LOG2.h             |  3 ++-
 .../libbuild2/autoconf/checks/HAVE_LOG2F.h            |  3 ++-
 .../libbuild2/autoconf/checks/HAVE_RDTSC.h            | 10 +++++-----
 .../libbuild2/autoconf/checks/HAVE_SLEEP.h            |  5 ++++-
 .../libbuild2/autoconf/checks/HAVE_STRUCT_ADDRINFO.h  |  3 ++-
 .../libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h |  3 ++-
 12 files changed, 35 insertions(+), 20 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h
index 0aef0686..cb4295ed 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ACCESS.h
@@ -15,6 +15,7 @@
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(2, 0) || \
     defined(BUILD2_AUTOCONF_MACOS) || \
-    (defined(__sun) && defined(__SVR4))
+    (defined(__sun) && defined(__SVR4)) || \
+    defined(_WIN32)
 #  define HAVE_ACCESS 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_UNALIGNED.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_UNALIGNED.h
index 43515aa9..2a87193d 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_UNALIGNED.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_UNALIGNED.h
@@ -4,7 +4,10 @@
 
 /* Platforms and compilers supporting efficient unaligned memory access.
  */
-#if defined(__x86_64__) || defined(__i386__)  /* x86 and x86-64 (Intel and AMD) */
+
+/* x86 and x86-64 (Intel and AMD) */
+#if defined(__x86_64__) || defined(__i386__) || \
+           defined(_M_IX86) || defined(_M_X64)
 /* x86 and x86-64 platforms have efficient unaligned memory access */
 #  define HAVE_FAST_UNALIGNED 1
 #elif defined(__ARM_ARCH) && (__ARM_ARCH >= 7) /* ARMv7-A or later */
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETADDRINFO.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETADDRINFO.h
index 9e526689..9df6399c 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETADDRINFO.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETADDRINFO.h
@@ -14,6 +14,7 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 5)|| \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(200106) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5) || \
-    defined(BUILD2_AUTOCONF_MACOS)
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32)
 #  define HAVE_GETADDRINFO 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETENV.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETENV.h
index a9d04d05..a18f568f 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETENV.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GETENV.h
@@ -9,10 +9,11 @@
 /* Since Version 7 AT&T UNIX, 4.3BSD-Tahoe (OpenBSD, FreeBSD, NetBSD, Mac OS X),
  * glibc 1.09
  */
-#if defined(__FreeBSD__)            || \
-    defined(__OpenBSD__)            || \
-    defined(__NetBSD__)             || \
-    defined(BUILD2_AUTOCONF_MACOS)  || \
-    BUILD2_AUTOCONF_GLIBC_PREREQ(1, 9)
+#if defined(__FreeBSD__)               || \
+    defined(__OpenBSD__)               || \
+    defined(__NetBSD__)                || \
+    defined(BUILD2_AUTOCONF_MACOS)     || \
+    BUILD2_AUTOCONF_GLIBC_PREREQ(1, 9) || \
+    defined(_WIN32)
 #  define HAVE_GETENV 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOT.h
index edb7cd8a..1128b03e 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOT.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_HYPOT.h
@@ -15,6 +15,7 @@
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
     defined(BUILD2_AUTOCONF_MACOS) || \
-    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__)) || \
+    defined(_WIN32)
 #  define HAVE_HYPOT 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10F.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10F.h
index 0145f58d..bc2e912e 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10F.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG10F.h
@@ -14,6 +14,7 @@
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
-    defined(BUILD2_AUTOCONF_MACOS)
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32)
 #  define HAVE_LOG10F 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2.h
index 4f0d02d1..dcb3a9fe 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2.h
@@ -14,6 +14,7 @@
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
-    defined(BUILD2_AUTOCONF_MACOS)
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32)
 #  define HAVE_LOG2 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2F.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2F.h
index 9c1698b5..d1ee28b1 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2F.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LOG2F.h
@@ -14,6 +14,7 @@
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0) || \
-    defined(BUILD2_AUTOCONF_MACOS)
+    defined(BUILD2_AUTOCONF_MACOS) || \
+    defined(_WIN32)
 #  define HAVE_LOG2F 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h
index 7e997c98..ae57f085 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_RDTSC.h
@@ -2,11 +2,11 @@
 
 #undef HAVE_RDTSC
 
-/* Presence of RDTSC (Read Time-Stamp Counter) instruction on x86
- * processors, which reads the number of CPU cycles since the last reset.
- * Since glibc 2.0 (x86), FreeBSD (x86), OpenBSD (x86), NetBSD (x86),
- * MacOS 10.04 (x86)
+/* Check for the presence of the RDTSC (Read Time-Stamp Counter) instruction,
+ * which reads the number of CPU cycles since the last reset.
+ * Available on x86 (32-bit and 64-bit) processors.
  */
-#if defined(__i386__)
+#if defined(__i386__) || defined(__x86_64__) || \
+    defined(_M_IX86) || defined(_M_X64)
 #  define HAVE_RDTSC 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h
index 51bf295b..9ad6892f 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h
@@ -17,6 +17,9 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 0)   || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3)    || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 0)    || \
-    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)
+    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)     || \
+    defined(_WIN32)
 #  define HAVE_SLEEP 1
+#else
+#  define HAVE_SLEEP 0
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_ADDRINFO.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_ADDRINFO.h
index dc520596..628b50c8 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_ADDRINFO.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_ADDRINFO.h
@@ -15,6 +15,7 @@
     BUILD2_AUTOCONF_OPENBSD_PREREQ(200106)  || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 5)    || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5)     || \
-    defined(BUILD2_AUTOCONF_MACOS)
+    defined(BUILD2_AUTOCONF_MACOS)          || \
+    defined(_WIN32)
 #  define HAVE_STRUCT_ADDRINFO 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h
index b8d10095..b7d538ac 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h
@@ -14,6 +14,7 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 0)  || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(200112) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5) || \
-    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0)
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    defined(_WIN32)
 #  define HAVE_STRUCT_IPV6_MREQ 1
 #endif

From a0c19001842e66cf3f0b6a7f04ecf44dd461315e Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Wed, 30 Oct 2024 17:58:39 +0100
Subject: [PATCH 146/166] Add HAVE_GNU_WINDRES

---
 .../libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h       | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h
new file mode 100644
index 00000000..eb4aa40b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h
@@ -0,0 +1,10 @@
+// HAVE_GNU_WINDRES
+
+#undef HAVE_GNU_WINDRES
+
+/* GNU windres is commonly available in MinGW and Cygwin environments,
+ * where it's used to compile Windows resource files (.rc).
+ */
+#if defined(__MINGW32__) || defined(__MINGW64__) || defined(__CYGWIN__)
+    #define HAVE_GNU_WINDRES 1
+#endif

From 2b9871b4f3cb92c077a12bfea5e9f7419ea7d1e8 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 4 Nov 2024 11:50:48 +0100
Subject: [PATCH 147/166] HAVE_ASM_EBP & HAVE_ASM_EBX: Don't define as '0' when
 not available.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h | 2 --
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h | 2 --
 2 files changed, 4 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
index 5b1a12d4..5bc9d430 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBP.h
@@ -12,6 +12,4 @@
     !defined(__powerpc__) && !defined(__ppc__) && \
     !defined(__mips__) && !defined(__riscv)
     #define HAVE_ASM_EBP 1
-#else
-    #define HAVE_ASM_EBP 0
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
index f0d9c351..ca6bd9d5 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_EBX.h
@@ -12,6 +12,4 @@
     !defined(__powerpc__) && !defined(__ppc__) && \
     !defined(__mips__) && !defined(__riscv)
     #define HAVE_ASM_EBX 1
-#else
-    #define HAVE_ASM_EBX 0
 #endif

From 9c7436950ec877b9ed1634fa36e156de4e008f79 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 4 Nov 2024 12:00:43 +0100
Subject: [PATCH 148/166] HAVE_SLEEP: Don't define as '0' when not available.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h
index 9ad6892f..ddded58b 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SLEEP.h
@@ -20,6 +20,4 @@
     BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)     || \
     defined(_WIN32)
 #  define HAVE_SLEEP 1
-#else
-#  define HAVE_SLEEP 0
 #endif

From b0c20b83c61709daa9bca6ae86065d62cdcf9967 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 4 Nov 2024 13:29:01 +0100
Subject: [PATCH 149/166] Add HAVE_GNU_AS

---
 .../libbuild2/autoconf/checks/HAVE_GNU_AS.h            | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_AS.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_AS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_AS.h
new file mode 100644
index 00000000..e3144c7c
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_AS.h
@@ -0,0 +1,10 @@
+// HAVE_GNU_AS
+
+#undef HAVE_GNU_AS
+
+/* GNU Assembler (as) is commonly available in environments like
+ * Linux, MinGW, and Cygwin, where the GNU toolchain is standard.
+ */
+#if defined(__GNUC__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(__CYGWIN__)
+    #define HAVE_GNU_AS 1
+#endif

From 9231156c7848470babe4e5a8dfcf8b30ae470b9a Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 4 Nov 2024 13:29:15 +0100
Subject: [PATCH 150/166] Add HAVE_ASM_MOD_Q

---
 .../autoconf/checks/HAVE_ASM_MOD_Q.h          | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_MOD_Q.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_MOD_Q.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_MOD_Q.h
new file mode 100644
index 00000000..1c3d12b1
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_MOD_Q.h
@@ -0,0 +1,19 @@
+// HAVE_ASM_MOD_Q
+
+#undef HAVE_ASM_MOD_Q
+
+/* Check if the 'modq' assembly instruction is available, which may be used
+ * in x86-64 environments with specific assemblers.
+ * This instruction is non-standard and might not be universally supported.
+ */
+#if defined(__x86_64__) || defined(_M_X64)
+    #if defined(__GNUC__) || defined(__clang__)
+        // GCC and Clang can support inline assembly with 'modq'
+        #define HAVE_ASM_MOD_Q 1
+    #elif defined(_MSC_VER)
+        // MSVC does not natively support 'modq' but might support equivalent
+        // operations depending on the intrinsic and inline assembly
+        // options (older MSVC might lack support)
+        #define HAVE_ASM_MOD_Q 1
+    #endif
+#endif

From 593c36adc46fbab1c17cdf9023c1e15dc85001d6 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 4 Nov 2024 13:50:15 +0100
Subject: [PATCH 151/166] HAVE_AS_FUNC_DIRECTIVE (.func) is not available on
 apple-silicon.

---
 .../libbuild2/autoconf/checks/HAVE_AS_FUNC_DIRECTIVE.h       | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FUNC_DIRECTIVE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FUNC_DIRECTIVE.h
index 2ba1a1c2..6960f71f 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FUNC_DIRECTIVE.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FUNC_DIRECTIVE.h
@@ -3,8 +3,9 @@
 #undef HAVE_AS_FUNC_DIRECTIVE
 
 /* Assembly directive '.func'/'.function'
- * AFAICS this exists on ARM since very old versions.
+ * AFAICS this exists on ARM since very old versions,
+ * but not on Apple Silicon.
  */
-#if defined(__ARM_ARCH)
+#if defined(__ARM_ARCH) && !defined(__APPLE__)
 #  define HAVE_AS_FUNC_DIRECTIVE 1
 #endif

From 0f311ea5c1e2289c1b44ada760a3dc383084d0aa Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 4 Nov 2024 17:20:51 +0100
Subject: [PATCH 152/166] HAVE_GNU_WINDRES: Also available on MSYS2.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h
index eb4aa40b..a81a9e0d 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h
@@ -5,6 +5,6 @@
 /* GNU windres is commonly available in MinGW and Cygwin environments,
  * where it's used to compile Windows resource files (.rc).
  */
-#if defined(__MINGW32__) || defined(__MINGW64__) || defined(__CYGWIN__)
+#if defined(__MSYS__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(__CYGWIN__)
     #define HAVE_GNU_WINDRES 1
 #endif

From 2574861df2c3927ff4cb7a296c50dc1eaef84218 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 4 Nov 2024 17:22:32 +0100
Subject: [PATCH 153/166] Revert "Add HAVE_GNU_AS"

This reverts commit b0c20b83c61709daa9bca6ae86065d62cdcf9967.

It's not used by any package.
---
 .../libbuild2/autoconf/checks/HAVE_GNU_AS.h            | 10 ----------
 1 file changed, 10 deletions(-)
 delete mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_AS.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_AS.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_AS.h
deleted file mode 100644
index e3144c7c..00000000
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_AS.h
+++ /dev/null
@@ -1,10 +0,0 @@
-// HAVE_GNU_AS
-
-#undef HAVE_GNU_AS
-
-/* GNU Assembler (as) is commonly available in environments like
- * Linux, MinGW, and Cygwin, where the GNU toolchain is standard.
- */
-#if defined(__GNUC__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(__CYGWIN__)
-    #define HAVE_GNU_AS 1
-#endif

From 4e349524ab6ed20f77bbc7590d22a18acd7f9606 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 4 Nov 2024 21:03:20 +0100
Subject: [PATCH 154/166] Fix the following checks for MINGW32: HAVE_GMTIME_R.h
 HAVE_GNU_WINDRES.h HAVE_ISFINITE.h HAVE_LIBC_MSVCRT.h HAVE_SYS_TYPES_H.h

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h  | 1 +
 .../libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h              | 2 +-
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISFINITE.h  | 4 +++-
 .../libbuild2/autoconf/checks/HAVE_LIBC_MSVCRT.h              | 2 +-
 .../libbuild2/autoconf/checks/HAVE_SYS_TYPES_H.h              | 2 +-
 5 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h
index 72c69fda..52aa41d3 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h
@@ -9,6 +9,7 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    defined(__MINGW32__) || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_GMTIME_R 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h
index a81a9e0d..d49a45d5 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GNU_WINDRES.h
@@ -6,5 +6,5 @@
  * where it's used to compile Windows resource files (.rc).
  */
 #if defined(__MSYS__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(__CYGWIN__)
-    #define HAVE_GNU_WINDRES 1
+#  define HAVE_GNU_WINDRES 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISFINITE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISFINITE.h
index 839975b4..14108cc3 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISFINITE.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ISFINITE.h
@@ -6,7 +6,8 @@
 
 #undef HAVE_ISFINITE
 
-/* Since Linux/glibc 2.0, FreeBSD 5.1, OpenBSD 4.4, NetBSD 1.3, Mac OS, Solaris
+/* Since Linux/glibc 2.0, FreeBSD 5.1, OpenBSD 4.4, NetBSD 1.3, Mac OS, Solaris,
+ * MingW
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)     || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 1)   || \
@@ -16,6 +17,7 @@
     BUILD2_AUTOCONF_MINGW_PREREQ(1, 0)     || \
     defined(BUILD2_AUTOCONF_MACOS)         || \
     defined(_WIN32)                        || \
+    defined(__MINGW32__)                   || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_ISFINITE 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBC_MSVCRT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBC_MSVCRT.h
index 32ec74d8..b7d36a2f 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBC_MSVCRT.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LIBC_MSVCRT.h
@@ -4,6 +4,6 @@
 
 /*  Presence of MSVCRT (Microsoft Visual C++ Runtime Library) in the C standard library.
  */
-#if defined(_MSC_VER) || defined(__MINGW32__)
+#if defined(_MSC_VER)
 #  define HAVE_LIBC_MSVCRT 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_TYPES_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_TYPES_H.h
index ec4ad171..0850aabf 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_TYPES_H.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SYS_TYPES_H.h
@@ -6,6 +6,6 @@
 
 #undef HAVE_SYS_TYPES_H
 /* Linux only (?) */
-#if defined(__linux__)
+#if defined(__linux__) || defined(__MINGW32__) || defined(__CYGWIN__)
 #  define HAVE_SYS_TYPES_H 1
 #endif

From 020466f2b711557cb30cdfbb2d39ad376c4629ea Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Sat, 9 Nov 2024 16:45:41 +0100
Subject: [PATCH 155/166] Revert "HAVE_ARC4RANDOM_BUF: Not available on linux
 (unless libbsd is installed)." It's required for at least libevent and
 appears to be a reasonable assumption that it exists.

This reverts commit 9b49ed85ccd2e0d82085b6e28f36d5a59937f89e.
---
 .../libbuild2/autoconf/checks/HAVE_ARC4RANDOM_BUF.h          | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM_BUF.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM_BUF.h
index dfeb7a5f..7fb4a51a 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM_BUF.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM_BUF.h
@@ -7,11 +7,12 @@
 #undef HAVE_ARC4RANDOM_BUF
 
 /* Since OpenBSD 2.1, FreeBSD 2.3, NetBSD 2.0, Mac OS X 10.7
- * and glibc 2.36 (only via libbsd).
+ * and glibc 2.36.
  */
 #if BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 3)   || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(2, 0)    || \
-    BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)    || \
+    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 36)
 #  define HAVE_ARC4RANDOM_BUF 1
 #endif

From a6b00ed2c006c471978378471356b689dc206cd6 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Sat, 9 Nov 2024 16:47:08 +0100
Subject: [PATCH 156/166] Revert "HAVE_ARC4RANDOM: Not available on linux
 (unless libbsd is installed)." It's required for at least libevent and
 appears to be a reasonable assumption that it exists.

This reverts commit 621a069277a5a5f61e6613dea517e1092cd7451d.
---
 .../libbuild2/autoconf/checks/HAVE_ARC4RANDOM.h              | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM.h
index 399cb3e3..ab92bbc1 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARC4RANDOM.h
@@ -7,11 +7,12 @@
 #undef HAVE_ARC4RANDOM
 
 /* Since OpenBSD 2.1, FreeBSD 2.3, NetBSD 2.0, Mac OS X 10.7
- * and glibc 2.36 (only via libbsd).
+ * and glibc 2.36.
  */
 #if BUILD2_AUTOCONF_OPENBSD_PREREQ(199706) || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 3)   || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(2, 0)    || \
-    BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 7)    || \
+    BUILD2_AUTOCONF_GLIBC_PREREQ(2, 36)
 #  define HAVE_ARC4RANDOM 1
 #endif

From 194f35ce28356eb49d5f274a8e77ba919f366081 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 9 Dec 2024 23:31:27 +0100
Subject: [PATCH 157/166] TEMP: Tweaks for windows. Clean this up.

---
 .../autoconf/checks/HAVE_FAST_FLOAT16.h       | 20 +++++++++++++++++++
 .../libbuild2/autoconf/checks/HAVE_FMA3.h     |  3 ++-
 .../libbuild2/autoconf/checks/HAVE_FMA4.h     |  3 ++-
 .../libbuild2/autoconf/checks/HAVE_I686.h     |  3 ++-
 .../autoconf/checks/HAVE_SIMD_ALIGN_16.h      |  4 +++-
 .../autoconf/checks/HAVE_SOCKLEN_T.h          |  7 +++++++
 .../autoconf/checks/HAVE__ALIGNED_MALLOC.h    |  1 -
 .../libbuild2/autoconf/checks/socklen_t.h     |  2 +-
 8 files changed, 37 insertions(+), 6 deletions(-)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_FLOAT16.h
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SOCKLEN_T.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_FLOAT16.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_FLOAT16.h
new file mode 100644
index 00000000..eaa78b6b
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FAST_FLOAT16.h
@@ -0,0 +1,20 @@
+// HAVE_FAST_FLOAT16
+
+#undef HAVE_FAST_FLOAT16
+
+/* Checks for the availability of fast `_Float16` support.
+ * `_Float16` is natively supported on:
+ * - GCC (11.0+) with supported architectures (ARM, x86 with AVX-512FP16, RISC-V V-extension).
+ * - Clang with similar architecture support.
+ * - ARM platforms with NEON or SVE.
+ * MSVC does not support `_Float16`.
+ */
+
+#if (defined(__GNUC__) && __GNUC__ >= 11) || defined(__clang__)
+#  if defined(__ARM_FEATURE_FP16_SCALAR_ARITHMETIC) || \
+      defined(__ARM_NEON) || \
+      defined(__AVX512FP16__) || \
+      defined(__riscv_zfh)
+#    define HAVE_FAST_FLOAT16 1
+#  endif
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA3.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA3.h
index 98f6403c..9db7948b 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA3.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA3.h
@@ -6,6 +6,7 @@
  *
  * MSVC: /arch:AVX2
  */
-#ifdef __FMA__
+#if defined(__FMA__) || \
+    (defined(_WIN32) && defined(__AVX2__))
 #  define HAVE_FMA3 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA4.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA4.h
index 459d2268..bb2ae02a 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA4.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_FMA4.h
@@ -6,6 +6,7 @@
  *
  * MSVC: /arch:AVX2
  */
-#ifdef __FMA4__
+#if defined(__FMA4__) || \
+    (defined(_WIN32) && defined(__AVX2__))
 #  define HAVE_FMA4 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I686.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I686.h
index 96cd0fa9..0953f63f 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I686.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_I686.h
@@ -3,7 +3,8 @@
 #undef HAVE_I686
 
 /* Defined for i686 processors (Pentium Pro and later)
+ * MSVC: Check for 32-bit x86 (_M_IX86) and compatible instruction sets.
  */
-#if defined(__i686__)
+#if defined(__i686__) || (defined(_MSC_VER) && defined(_M_IX86) && _M_IX86 >= 600)
 #  define HAVE_I686 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_16.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_16.h
index 667eec5c..b0aab113 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_16.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SIMD_ALIGN_16.h
@@ -4,7 +4,9 @@
 
 /* Presence of 16-byte SIMD alignment,
  * typically required for SSE and NEON.
+ * WIN32: Check for _M_IX86 or _M_X64 and SSE support.
  */
-#if defined(__SSE__) || defined(__ARM_NEON) || defined(__ARM_NEON__)
+#if defined(__SSE__) || defined(__ARM_NEON) || defined(__ARM_NEON__) || \
+    (defined(_WIN32) && (defined(_M_IX86) || defined(_M_X64)))
 #  define HAVE_SIMD_ALIGN_16 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SOCKLEN_T.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SOCKLEN_T.h
new file mode 100644
index 00000000..32fe6be2
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SOCKLEN_T.h
@@ -0,0 +1,7 @@
+// HAVE_SOCKLEN_T: socklen_t
+
+#undef HAVE_SOCKLEN_T
+
+#ifdef socklen_t
+#  define HAVE_SOCKLEN_T 1
+#endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE__ALIGNED_MALLOC.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE__ALIGNED_MALLOC.h
index e9d9183a..ceb7eb77 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE__ALIGNED_MALLOC.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE__ALIGNED_MALLOC.h
@@ -7,4 +7,3 @@
 #if defined(_WIN32)
 #  define HAVE__ALIGNED_MALLOC 1
 #endif
-
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h b/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
index 11f200b6..4219d611 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
@@ -28,7 +28,7 @@
        * this is a simple int typedef and so just doing that feels like the
        * simplest (if hackish) way to sidestep the whole mess.
        */
-      typedef int socklen_t;
+#     define socklen_t int
 #  else
       /* Else define it to unsigned int (suggested fallback by libevent). */
 #     define socklen_t unsigned int

From 28f5ade7f77e19b2288e52cad6344e132d529280 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Sat, 14 Dec 2024 16:00:37 +0100
Subject: [PATCH 158/166] Add HAVE_ARMASM

---
 .../libbuild2/autoconf/checks/HAVE_ARMASM.h          | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARMASM.h

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARMASM.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARMASM.h
new file mode 100644
index 00000000..ef709fb4
--- /dev/null
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ARMASM.h
@@ -0,0 +1,12 @@
+// HAVE_ARMASM
+
+#undef HAVE_ARMASM
+
+// Check for ARM assembly support based on compiler targeting ARM
+
+// GCC or Clang (including Apple Clang) - Check for ARM target architecture
+#if defined(__GNUC__) || defined(__clang__)
+#  if defined(__ARM_ARCH) || defined(__arm__) || defined(__aarch64__)
+#    define HAVE_ARMASM 1
+#  endif
+#endif

From bbda87c9e8ad95fc6fd92c5a1f66ae7026b67282 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Sat, 14 Dec 2024 16:01:54 +0100
Subject: [PATCH 159/166] Revise these checks (specifically to work correctly
 for MacOS): HAVE_ASM_TYPES_H.h HAVE_GMTIME_R.h HAVE_LSTAT.h HAVE_SOCKLEN_T.h
 HAVE_STRUCT_GROUP_SOURCE_REQ.h HAVE_STRUCT_IP_MREQ_SOURCE.h socklen_t.h

---
 .../autoconf/checks/HAVE_ASM_TYPES_H.h        |  2 +-
 .../libbuild2/autoconf/checks/HAVE_GMTIME_R.h |  1 +
 .../libbuild2/autoconf/checks/HAVE_LSTAT.h    | 13 +++++++++++--
 .../autoconf/checks/HAVE_SOCKLEN_T.h          | 19 +++++++++++++++++--
 .../checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h     |  6 ++++--
 .../checks/HAVE_STRUCT_IP_MREQ_SOURCE.h       |  7 +++++--
 .../libbuild2/autoconf/checks/socklen_t.h     | 14 +++++++-------
 7 files changed, 46 insertions(+), 16 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h
index fbda0ee6..45b5d4b8 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h
@@ -4,6 +4,6 @@
 
 /* Since Linux 2.2.
  */
-#if defined(__linux__)
+#if defined(__linux__) || (__APPLE__)
 #  define HAVE_ASM_TYPES_H 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h
index 52aa41d3..707c4df3 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_GMTIME_R.h
@@ -9,6 +9,7 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199105) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
     defined(__MINGW32__) || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_GMTIME_R 1
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSTAT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSTAT.h
index 9d8a2a6f..a15ba920 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSTAT.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_LSTAT.h
@@ -6,8 +6,17 @@
 
 #undef HAVE_LSTAT
 
-/* Since glibc 2.19.
+/* 
+ * lstat() is available in:
+ * - glibc since 2.19
+ * - BSD systems (including MacOS)
+ * - Solaris
  */
-#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19)
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 19) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_LSTAT 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SOCKLEN_T.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SOCKLEN_T.h
index 32fe6be2..d7e66794 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SOCKLEN_T.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_SOCKLEN_T.h
@@ -1,7 +1,22 @@
-// HAVE_SOCKLEN_T: socklen_t
+// HAVE_SOCKLEN_T : BUILD2_AUTOCONF_LIBC_VERSION
+
+#ifndef BUILD2_AUTOCONF_LIBC_VERSION
+#  error BUILD2_AUTOCONF_LIBC_VERSION appears to be conditionally included
+#endif
 
 #undef HAVE_SOCKLEN_T
 
-#ifdef socklen_t
+/* socklen_t is available in:
+ * - glibc since 2.0
+ * - BSD systems (including MacOS)
+ * - Solaris, Cygwin
+ */
+#if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    (defined(__sun) && defined(__SVR4)) || \
+    defined(__CYGWIN__)
 #  define HAVE_SOCKLEN_T 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h
index a47ecaa0..e2c5a9f2 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h
@@ -8,9 +8,11 @@
 
 /* Presence of the group_source_req structure, used for managing IP multicast group
  * subscriptions with source filtering, typically found in newer networking libraries.
- * Since glibc 2.5, FreeBSD 9.0
+ * Since glibc 2.5, FreeBSD 9.0, MacOS 10.11, NetBSD 8.0
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 5) || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0)
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 11) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(8, 0)
 #  define HAVE_STRUCT_GROUP_SOURCE_REQ 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h
index 2d2fdd1f..def6778d 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h
@@ -8,9 +8,12 @@
 
 /* Presence of the ip_mreq_source structure, used for IP
  * multicast source filtering in IPv4.
- * Since glibc 2.1, FreeBSD 9.0
+ * Since glibc 2.1, FreeBSD 9.0, MacOS 10.4, NetBSD 3.0, OpenBSD 4.0
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 1) || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0)
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0) || \
+    BUILD2_AUTOCONF_MACOS_PREREQ(10, 4) || \
+    BUILD2_AUTOCONF_NETBSD_PREREQ(3, 0) || \
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200508)
 #  define HAVE_STRUCT_IP_MREQ_SOURCE 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h b/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
index 4219d611..9aced9cb 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
@@ -1,4 +1,4 @@
-// socklen_t!
+// socklen_t! : BUILD2_AUTOCONF_LIBC_VERSION
 
 /* If socklen_t is already defined, assume it's correct and use it as-is (see
  * ssize_t for details).
@@ -12,11 +12,11 @@
  *   To forestall portability problems, it is recommended that
  *   applications should not use values larger than 232 - 1.
  */
-#  if defined(__linux__)                  || \
-      defined(__FreeBSD__)                || \
-      defined(__OpenBSD__)                || \
-      defined(__NetBSD__)                 || \
-      defined(__APPLE__)                  || \
+#  if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0) || \
+      BUILD2_AUTOCONF_FREEBSD_PREREQ(4, 0) || \
+      BUILD2_AUTOCONF_OPENBSD_PREREQ(199510) || \
+      BUILD2_AUTOCONF_NETBSD_PREREQ(1, 0) || \
+      BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
       (defined(__sun) && defined(__SVR4)) || \
       defined(__CYGWIN__)
 #     include <sys/socket.h>
@@ -28,7 +28,7 @@
        * this is a simple int typedef and so just doing that feels like the
        * simplest (if hackish) way to sidestep the whole mess.
        */
-#     define socklen_t int
+       typedef int socklen_t
 #  else
       /* Else define it to unsigned int (suggested fallback by libevent). */
 #     define socklen_t unsigned int

From 99bce6656d88a1f891b0140fb6aad3c40fb8b95d Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 16 Dec 2024 11:51:04 +0100
Subject: [PATCH 160/166] BYTE_ORDER: Remove problematic header on MacOS (which
 isn't necessary anyways).

---
 .../libbuild2/autoconf/checks/BYTE_ORDER.h             | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h b/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h
index 29d954ce..4649afb9 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h
@@ -12,7 +12,10 @@
 #elif defined(__FreeBSD__) || defined(__NetBSD__)
 #  include <sys/endian.h>
 #elif defined(__APPLE__)
-#  include <machine/endian.h>
+// NOTE: This header is deprecated and also causes various
+//       issues with defines like u_int and friends, and
+//       strictly speaking it shouldn't be necessary.
+//#  include <machine/endian.h>
 #elif !defined(_WIN32)
 #  include <sys/param.h>
 #endif
@@ -38,6 +41,11 @@
 #      define BYTE_ORDER    __DARWIN_BYTE_ORDER
 #      define BIG_ENDIAN    __DARWIN_BIG_ENDIAN
 #      define LITTLE_ENDIAN __DARWIN_LITTLE_ENDIAN
+#    else
+       // If for some reason __DARWIN_BYTE_ORDER isn't defined, we can assume:
+#      define BYTE_ORDER    __LITTLE_ENDIAN  // macOS uses little-endian
+#      define BIG_ENDIAN    4321
+#      define LITTLE_ENDIAN 1234
 #    endif
 #  elif defined(_WIN32)
 #    define BIG_ENDIAN    4321

From af601df3d4d1a5638a7f3975e1985def349a8d3e Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 16 Dec 2024 11:51:58 +0100
Subject: [PATCH 161/166] socklen_t: Add missing semi-colon.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h b/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
index 9aced9cb..4e0329c0 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/socklen_t.h
@@ -28,7 +28,7 @@
        * this is a simple int typedef and so just doing that feels like the
        * simplest (if hackish) way to sidestep the whole mess.
        */
-       typedef int socklen_t
+       typedef int socklen_t;
 #  else
       /* Else define it to unsigned int (suggested fallback by libevent). */
 #     define socklen_t unsigned int

From e7cccc84ecbf28b3c3d496b98f69fcc3b399f6d3 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 16 Dec 2024 11:54:00 +0100
Subject: [PATCH 162/166] Revise these checks (specifically to work correctly
 for MacOS): HAVE_ASM_TYPES_H.h HAVE_AS_DN_DIRECTIVE.h HAVE_AS_FPU_DIRECTIVE.h
 HAVE_INTTYPES_H.h

---
 .../libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h         | 2 +-
 .../libbuild2/autoconf/checks/HAVE_AS_DN_DIRECTIVE.h     | 9 ++++++---
 .../libbuild2/autoconf/checks/HAVE_AS_FPU_DIRECTIVE.h    | 7 ++++---
 .../libbuild2/autoconf/checks/HAVE_INTTYPES_H.h          | 4 ++--
 4 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h
index 45b5d4b8..fbda0ee6 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_ASM_TYPES_H.h
@@ -4,6 +4,6 @@
 
 /* Since Linux 2.2.
  */
-#if defined(__linux__) || (__APPLE__)
+#if defined(__linux__)
 #  define HAVE_ASM_TYPES_H 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_DN_DIRECTIVE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_DN_DIRECTIVE.h
index 4bdf2e31..62e159ed 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_DN_DIRECTIVE.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_DN_DIRECTIVE.h
@@ -3,9 +3,12 @@
 #undef HAVE_AS_DN_DIRECTIVE
 
 /* Assembly feature.
- * Available in ARMV8 and later.
+ * Available in ARMv8 and later.
  * See: https://sourceware.org/binutils/docs/as/ARM-Directives.html
+ * Note: Apple Silicon (M1 and later) uses ARMv8 architecture but has different preprocessor macros.
  */
-#if defined(__ARM_NEON) || defined(__ARM_NEON__)
-#  define HAVE_AS_DN_DIRECTIVE 1
+#if (defined(__ARM_NEON) || defined(__ARM_ARCH_ISA_A64)) || (defined(__APPLE__) && (defined(__arm64__) || defined(__arm64e__)))
+#  if defined(__ARM_ARCH) && __ARM_ARCH >= 8 || (defined(__APPLE__) && (defined(__arm64__) || defined(__arm64e__)))
+#    define HAVE_AS_DN_DIRECTIVE 1
+#  endif
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FPU_DIRECTIVE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FPU_DIRECTIVE.h
index 8ce2d5e3..051b5ef9 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FPU_DIRECTIVE.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_AS_FPU_DIRECTIVE.h
@@ -3,11 +3,12 @@
 #undef HAVE_AS_FPU_DIRECTIVE
 
 /* Assembly feature.
- * Available in ARMV8 and later.
+ * Available in ARMv8 and later.
  * See: https://sourceware.org/binutils/docs/as/ARM-Directives.html
+ * Note: Apple Silicon (M1 and later) uses ARMv8 architecture but has different preprocessor macros.
  */
-#if defined(__ARM_ARCH)
-#  if __ARM_ARCH >= 8
+#if defined(__ARM_ARCH) || (defined(__APPLE__) && (defined(__arm64__) || defined(__arm64e__)))
+#  if defined(__ARM_ARCH) && __ARM_ARCH >= 8 || (defined(__APPLE__) && (defined(__arm64__) || defined(__arm64e__)))
 #    define HAVE_AS_FPU_DIRECTIVE 1
 #  endif
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INTTYPES_H.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INTTYPES_H.h
index b7a93abe..3e91adea 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INTTYPES_H.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_INTTYPES_H.h
@@ -6,11 +6,11 @@
 
 #undef HAVE_INTTYPES_H
 
-/* Since OpenBSD 3.9, FreeBSD 5.0, NetBSD 5.0, Mac OS X 10.3
+/* Since OpenBSD 3.9, FreeBSD 5.0, NetBSD 5.0, Mac OS X 10.3,
  * glibc 2.2, Mingw-w64 2.0, Platform SDK 10.
  */
 #if BUILD2_AUTOCONF_OPENBSD_PREREQ(200601) || \
-    BUILD2_AUTOCONF_FREEBSD_PREREQ(2, 3)   || \
+    BUILD2_AUTOCONF_FREEBSD_PREREQ(5, 0)   || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(5, 0)    || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 3)    || \
     BUILD2_AUTOCONF_GLIBC_PREREQ(2, 2)     || \

From 2b07dac3b484d42569864cfeb4ca7c94e7d69303 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 16 Dec 2024 20:39:05 +0100
Subject: [PATCH 163/166] HAVE_XOP: 1 for MSVC+AMD

---
 libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XOP.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XOP.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XOP.h
index e1106445..ee16b738 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XOP.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_XOP.h
@@ -10,6 +10,6 @@
  *       https://docs.microsoft.com/en-us/cpp/intrinsics/x86-intrinsics-list
  *       https://docs.microsoft.com/en-us/cpp/intrinsics/x64-amd64-intrinsics-list)
  */
-#ifdef __XOP__
+#if defined(__XOP__) || (defined(_MSC_VER) && defined(_M_AMD64))
 #  define HAVE_XOP 1
 #endif

From d93b1ca541f23f1f92a838bb22ccc1819bcebcc3 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Mon, 16 Dec 2024 12:57:49 +0100
Subject: [PATCH 164/166] BYTE_ORDER: Use the same fallback for __APPLE__  as
 other platforms.

---
 libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h b/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h
index 4649afb9..4e9b19c0 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/BYTE_ORDER.h
@@ -41,11 +41,6 @@
 #      define BYTE_ORDER    __DARWIN_BYTE_ORDER
 #      define BIG_ENDIAN    __DARWIN_BIG_ENDIAN
 #      define LITTLE_ENDIAN __DARWIN_LITTLE_ENDIAN
-#    else
-       // If for some reason __DARWIN_BYTE_ORDER isn't defined, we can assume:
-#      define BYTE_ORDER    __LITTLE_ENDIAN  // macOS uses little-endian
-#      define BIG_ENDIAN    4321
-#      define LITTLE_ENDIAN 1234
 #    endif
 #  elif defined(_WIN32)
 #    define BIG_ENDIAN    4321

From c70f324259de51f93662ada2a9ed0f0c34fa509f Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Sat, 28 Dec 2024 12:38:07 +0100
Subject: [PATCH 165/166] Revise these checks (specifically to work correctly
 for Win32 as FFmpeg expects): HAVE_STRUCT_ADDRINFO.h
 HAVE_STRUCT_GROUP_SOURCE_REQ.h HAVE_STRUCT_IN6_ADDR.h HAVE_STRUCT_IPV6_MREQ.h
 HAVE_STRUCT_IP_MREQ_SOURCE.h HAVE_STRUCT_POLLFD.h
 HAVE_STRUCT_SOCKADDR_STORAGE.h

---
 .../libbuild2/autoconf/checks/HAVE_STRUCT_ADDRINFO.h       | 4 +++-
 .../autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h         | 5 ++++-
 .../libbuild2/autoconf/checks/HAVE_STRUCT_IN6_ADDR.h       | 4 +++-
 .../libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h      | 4 +++-
 .../libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h | 5 ++++-
 .../libbuild2/autoconf/checks/HAVE_STRUCT_POLLFD.h         | 7 +++++--
 .../autoconf/checks/HAVE_STRUCT_SOCKADDR_STORAGE.h         | 4 +++-
 7 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_ADDRINFO.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_ADDRINFO.h
index 628b50c8..733b7e45 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_ADDRINFO.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_ADDRINFO.h
@@ -16,6 +16,8 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 5)    || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5)     || \
     defined(BUILD2_AUTOCONF_MACOS)          || \
-    defined(_WIN32)
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__)
 #  define HAVE_STRUCT_ADDRINFO 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h
index e2c5a9f2..169b57ce 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_GROUP_SOURCE_REQ.h
@@ -13,6 +13,9 @@
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 5) || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0) || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 11) || \
-    BUILD2_AUTOCONF_NETBSD_PREREQ(8, 0)
+    BUILD2_AUTOCONF_NETBSD_PREREQ(8, 0) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__)
 #  define HAVE_STRUCT_GROUP_SOURCE_REQ 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IN6_ADDR.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IN6_ADDR.h
index 3094a2cf..535c8605 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IN6_ADDR.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IN6_ADDR.h
@@ -13,6 +13,8 @@
     BUILD2_AUTOCONF_OPENBSD_PREREQ(200106)  || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5)     || \
     defined(BUILD2_AUTOCONF_MACOS)          || \
-    defined(_WIN32)
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__)
 #  define HAVE_STRUCT_IN6_ADDR 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h
index b7d538ac..639e07fb 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IPV6_MREQ.h
@@ -15,6 +15,8 @@
     BUILD2_AUTOCONF_OPENBSD_PREREQ(200112) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 5) || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
-    defined(_WIN32)
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__)
 #  define HAVE_STRUCT_IPV6_MREQ 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h
index def6778d..d8201765 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_IP_MREQ_SOURCE.h
@@ -14,6 +14,9 @@
     BUILD2_AUTOCONF_FREEBSD_PREREQ(9, 0) || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 4) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(3, 0) || \
-    BUILD2_AUTOCONF_OPENBSD_PREREQ(200508)
+    BUILD2_AUTOCONF_OPENBSD_PREREQ(200508) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__)
 #  define HAVE_STRUCT_IP_MREQ_SOURCE 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_POLLFD.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_POLLFD.h
index 8ab2b8d7..f68fea05 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_POLLFD.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_POLLFD.h
@@ -8,14 +8,17 @@
 
 /* Presence of the pollfd structure, used for the poll() system call,
  * which monitors multiple file descriptors.
- * Since glibc 2.0, FreeBSD 3.0, OpenBSD 2.0, NetBSD 1.3, MacOS 10
- * Solaris 2.6
+ * Since glibc 2.0, FreeBSD 3.0, OpenBSD 2.0, NetBSD 1.3, MacOS 10,
+ * Windows (winsock2.h) & Solaris 2.6
  */
 #if BUILD2_AUTOCONF_GLIBC_PREREQ(2, 0)    || \
     BUILD2_AUTOCONF_FREEBSD_PREREQ(3, 0)  || \
     BUILD2_AUTOCONF_OPENBSD_PREREQ(199610) || \
     BUILD2_AUTOCONF_NETBSD_PREREQ(1, 3) || \
     BUILD2_AUTOCONF_MACOS_PREREQ(10, 0) || \
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__) || \
     ((defined(__sun) && defined(__SVR4)) || defined(__sun__))
 #  define HAVE_STRUCT_POLLFD 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_STORAGE.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_STORAGE.h
index 61b790e0..0626a809 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_STORAGE.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_STRUCT_SOCKADDR_STORAGE.h
@@ -13,6 +13,8 @@
     defined(__OpenBSD__)                || \
     defined(__NetBSD__)                 || \
     defined(BUILD2_AUTOCONF_MACOS)      || \
-    defined(_WIN32)
+    defined(_WIN32) || \
+    defined(__MINGW32__) || \
+    defined(__CYGWIN__)
 #  define HAVE_STRUCT_SOCKADDR_STORAGE 1
 #endif

From 2c1781e074b7b873d27cb0ebd87cfa75d7383f53 Mon Sep 17 00:00:00 2001
From: helmesjo <helmesjo@gmail.com>
Date: Tue, 7 Jan 2025 14:32:09 +0100
Subject: [PATCH 166/166] Revise HAVE_MMX & HAVE_MMXEXT (when testing with
 FFmpeg it looks like whenever HAVE_X86ASM is 1 then these should also be 1).

---
 .../libbuild2/autoconf/checks/HAVE_MMX.h              | 11 +++++------
 .../libbuild2/autoconf/checks/HAVE_MMXEXT.h           | 11 +++++------
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h
index 644c5f27..d8840f44 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMX.h
@@ -1,13 +1,12 @@
-// HAVE_MMX
+// HAVE_MMX : HAVE_X86ASM
 
 #undef HAVE_MMX
 
-/* Presence of MMX instructions, which are extensions to the original
- * MMX instruction set, available on AMD processors starting from K6-2.
- * Since glibc 2.0 (x86), FreeBSD (x86), OpenBSD (x86), NetBSD (x86),
- * MacOS 10.04 (x86), MSVC
+/* Presence of MMX instructions:
+ * - Checks for explicit __MMX__ definition first
+ * - Falls back to compiler-specific checks for likely MMX support
  */
 #if defined(__MMX__) || \
-    defined(_M_IX86) || defined(_M_X64)
+    defined(HAVE_X86ASM)
 #  define HAVE_MMX 1
 #endif
diff --git a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h
index 0fd6b3e6..5278c1c4 100644
--- a/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h
+++ b/libbuild2-autoconf/libbuild2/autoconf/checks/HAVE_MMXEXT.h
@@ -1,13 +1,12 @@
-// HAVE_MMXEXT
+// HAVE_MMXEXT : HAVE_X86ASM
 
 #undef HAVE_MMXEXT
 
-/* Presence of MMXEXT instructions, which are extensions to the original
- * MMX instruction set, available on AMD processors starting from K6-2.
- * Since glibc 2.0 (x86), FreeBSD (x86), OpenBSD (x86), NetBSD (x86),
- * MacOS 10.04 (x86), MSVC
+/* Presence of MMXEXT instructions:
+ * - Checks for explicit __MMXEXT__ definition first
+ * - Falls back to compiler-specific checks for likely MMXEXT support
  */
 #if defined(__MMXEXT__) || \
-    defined(_M_IX86) || defined(_M_X64)
+    defined(HAVE_X86ASM)
 #  define HAVE_MMXEXT 1
 #endif