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configure.ac
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configure.ac
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dnl Process this file with autoconf to produce a configure script.
# Copyright (C) 2000-2012, 2016, 2019, 2022 Free Software Foundation, Inc.
#
# Author: Nikos Mavrogiannopoulos, Simon Josefsson
#
# This file is part of GnuTLS.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
AC_PREREQ(2.64)
dnl when updating version also update LT_REVISION in m4/hooks.m4
AC_INIT([GnuTLS], [3.8.7], [[email protected]])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIRS([m4 src/gl/m4 lib/unistring/m4])
AC_CANONICAL_HOST
AM_INIT_AUTOMAKE([1.12.2 foreign subdir-objects no-dist-gzip dist-xz -Wall -Wno-override])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_CONFIG_HEADERS([config.h])
AC_MSG_RESULT([***
*** Checking for compilation programs...
])
dnl Checks for programs.
PKG_PROG_PKG_CONFIG
AC_PROG_CC
gl_EARLY
ggl_EARLY
unistring_EARLY
AM_PROG_AS
AM_PROG_AR
AC_PROG_CXX
AM_PROG_CC_C_O
AC_PROG_YACC
AC_PROG_SED
AC_USE_SYSTEM_EXTENSIONS
#
# Require C99 support
#
AC_PROG_CC_C99
if test "$ac_cv_prog_cc_c99" = "no"; then
AC_MSG_WARN([[Compiler does not support C99. It may not be able to compile the project.]])
fi
AM_CONDITIONAL(CROSS_COMPILING, test "$cross_compiling" = yes)
AX_CODE_COVERAGE
AM_MAINTAINER_MODE([enable])
AM_MISSING_PROG([GPERF], [gperf])
AM_MISSING_PROG([ASN1PARSER], [asn1Parser])
AM_MISSING_PROG([PERL], [perl])
AC_CHECK_PROGS([FAKETIME], [faketime])
AS_IF([test -n "$FAKETIME"], [FAKETIME_F_OPT="-f"; AC_SUBST([FAKETIME_F_OPT])], [
AC_CHECK_PROGS([DATEFUDGE], [datefudge])
AS_IF([test -n "$DATEFUDGE"], [
FAKETIME_F_OPT="-s"
AC_SUBST([FAKETIME], [$DATEFUDGE])
AC_SUBST([FAKETIME_F_OPT])
])
])
AC_MSG_CHECKING([whether faketime program works])
AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <stdio.h>
#include <stdlib.h>
#include <time.h>
]],
[[time_t t = time(NULL);
struct tm *tmp = localtime(&t);
char outstr[200];
if (!tmp) return 0;
if (!strftime(outstr, sizeof(outstr), "%s", tmp)) return 0;
puts(outstr);
return 0;
]])],
[AS_IF([test -n "$FAKETIME" && test `TZ=UTC $FAKETIME $FAKETIME_F_OPT "2006-09-23 00:00:00" ./conftest$EXEEXT` = "1158969600"], [
ac_cv_faketime_works=yes
], [
ac_cv_faketime_works=no
])],
[ac_cv_faketime_works=no],
[ac_cv_faketime_works=cross-compiling])
AC_MSG_RESULT([$ac_cv_faketime_works])
AC_SUBST([ac_cv_faketime_works])
AC_ARG_ENABLE(bash-tests,
AS_HELP_STRING([--disable-bash-tests], [skip some tests that badly need bash]),
enable_bash_tests=$enableval, enable_bash_tests=yes)
AM_CONDITIONAL(DISABLE_BASH_TESTS, test "$enable_bash_tests" != "yes")
AC_ARG_ENABLE(doc,
AS_HELP_STRING([--disable-doc], [don't generate any documentation]),
enable_doc=$enableval, enable_doc=yes)
AM_CONDITIONAL(ENABLE_DOC, test "$enable_doc" != "no")
AC_ARG_ENABLE(manpages,
AS_HELP_STRING([--enable-manpages], [install manpages even if disable-doc is given]),
enable_manpages=$enableval,enable_manpages=auto)
if test "${enable_manpages}" = "auto";then
enable_manpages="${enable_doc}"
fi
AM_CONDITIONAL(ENABLE_MANPAGES, test "$enable_manpages" != "no")
AC_ARG_ENABLE(tools,
AS_HELP_STRING([--disable-tools], [don't compile any tools]),
enable_tools=$enableval, enable_tools=yes)
AM_CONDITIONAL(ENABLE_TOOLS, test "$enable_tools" != "no")
# For includes/gnutls/gnutls.h.in.
AC_SUBST(MAJOR_VERSION, `echo $PACKAGE_VERSION | sed 's/\(.*\)\..*\..*/\1/g'`)
AC_SUBST(MINOR_VERSION, `echo $PACKAGE_VERSION | sed 's/.*\.\(.*\)\..*/\1/g'`)
AC_SUBST(PATCH_VERSION, [[`echo $PACKAGE_VERSION | sed 's/.*\..*\.\([0-9]*\).*/\1/g'`]])
AC_SUBST(NUMBER_VERSION, `printf "0x%02x%02x%02x" $MAJOR_VERSION $MINOR_VERSION $PATCH_VERSION`)
dnl C and C++ capabilities
AC_C_INLINE
AC_HEADER_STDC
# For the C++ code
AC_ARG_ENABLE(cxx,
AS_HELP_STRING([--disable-cxx], [unconditionally disable the C++ library]),
use_cxx=$enableval, use_cxx=yes)
if test "$use_cxx" != "no"; then
AC_LANG_PUSH(C++)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])], use_cxx=yes, use_cxx=no)
AC_LANG_POP(C++)
fi
AM_CONDITIONAL(ENABLE_CXX, test "$use_cxx" != "no")
dnl Detect windows build
use_accel=yes
have_vista_dynamic=yes
case "$host" in
*android*)
have_android=yes
have_elf=yes
;;
*mingw32* | *mingw64*)
have_win=yes
AC_DEFINE([_UNICODE], [1], [Defined to 1 for Unicode (wide chars) APIs])
GNUTLS_LIBS_PRIVATE="${GNUTLS_LIBS_PRIVATE} -ladvapi32 -lcrypt32"
AC_PREPROC_IFELSE([AC_LANG_PROGRAM(
[[#include <windows.h>
#if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0600
# error Vista APIs allowed statically
#endif
]],[[;]])],[have_vista_dynamic=yes],[have_vista_dynamic=no])
AC_ARG_ENABLE(dyn_ncrypt,
AS_HELP_STRING([--enable-dyn-ncrypt], [use ncrypt dynamically]),
enable_dyn_ncrypt=$enableval, enable_dyn_ncrypt=$have_vista_dynamic
)
if test "x$enable_dyn_ncrypt" = "xyes"; then
AC_DEFINE([DYN_NCRYPT], 1, [Dynamic use of ncrypt API (win32)])
else
GNUTLS_LIBS_PRIVATE="${GNUTLS_LIBS_PRIVATE} -lncrypt"
fi
;;
*darwin*)
have_macosx=yes
save_LDFLAGS="$LDFLAGS"
dnl Try to use -no_weak_imports if available. This makes sure we
dnl error out when linking to a function that doesn't exist in the
dnl intended minimum runtime version.
LDFLAGS="$LDFLAGS -Wl,-no_weak_imports"
AC_MSG_CHECKING([whether the linker supports -Wl,-no_weak_imports])
AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
[AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no); LDFLAGS="$save_LDFLAGS"])
GNUTLS_LIBS_PRIVATE="${GNUTLS_LIBS_PRIVATE} -framework Security -framework CoreFoundation"
;;
*solaris*)
have_elf=yes
use_accel=no
AC_MSG_WARN([[
***
*** In solaris hardware acceleration is disabled by default due to issues
*** with the assembler. Use --enable-hardware-acceleration to enable it.
*** ]])
;;
*)
have_elf=yes
;;
esac
AM_CONDITIONAL(ANDROID, test "$have_android" = yes)
AM_CONDITIONAL(WINDOWS, test "$have_win" = yes)
AM_CONDITIONAL(MACOSX, test "$have_macosx" = yes)
AM_CONDITIONAL(ELF, test "$have_elf" = yes)
dnl Hardware Acceleration
AC_ARG_ENABLE(hardware-acceleration,
AS_HELP_STRING([--disable-hardware-acceleration], [unconditionally disable hardware acceleration]),
use_accel=$enableval)
hw_accel=none
use_padlock=no
if test "$use_accel" != "no"; then
case $host_cpu in
armv8 | aarch64)
hw_accel="aarch64"
case $host_os in
*_ilp32)
dnl ILP32 not supported in assembler yet
hw_accel="none"
;;
esac
;;
i?86 | x86_64 | amd64)
AC_CHECK_HEADERS(cpuid.h)
if test "$host_cpu" = "x86_64" || test "$host_cpu" = "amd64"; then
hw_accel="x86-64"
else
hw_accel="x86"
fi
use_padlock=yes
;;
*)
;;
esac
# Check if the assembler supports -march=all
if test "$hw_accel" = aarch64; then
AARCH64_CCASFLAGS="-Wa,-march=all"
AC_MSG_CHECKING([whether the compiler supports -Wa,-march=all])
: > conftest.s
if "$CCAS" "$AARCH64_CCASFLAGS" -c conftest.s >/dev/null 2>&1; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
AARCH64_CCASFLAGS=
fi
AC_SUBST(AARCH64_CCASFLAGS)
fi
# check for gcc's __get_cpuid_count functionality
AC_MSG_CHECKING([for __get_cpuid_count])
AC_LINK_IFELSE(
[AC_LANG_SOURCE([
#include <cpuid.h>
int main(void) { unsigned t1; return __get_cpuid_count(7, 0, &t1, &t1, &t1, &t1); }
])],
[AC_DEFINE([HAVE_GET_CPUID_COUNT], [1], [use __get_cpuid_count]) AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])]
)
fi
AC_ARG_ENABLE(tls13-interop,
AS_HELP_STRING([--disable-tls13-interop], [disable TLS1.3 interoperability testing with openssl]),
enable_tls13_interop=$enableval, enable_tls13_interop=yes)
dnl Check for iovec type
AC_CHECK_MEMBERS([struct iovec.iov_base],
[
AC_SUBST([DEFINE_IOVEC_T], ["#include <sys/uio.h>
typedef struct iovec giovec_t;"])
],
[
AC_SUBST([DEFINE_IOVEC_T], ["typedef struct {
void *iov_base;
size_t iov_len;
} giovec_t;"])
],
[#include <sys/uio.h>
])
AM_SUBST_NOTMAKE([DEFINE_IOVEC_T])
dnl Need netinet/tcp.h for TCP_FASTOPEN
AC_CHECK_HEADERS([netinet/tcp.h])
AC_CHECK_HEADERS([stdatomic.h])
dnl This ensures that we link with the right library for atomic operations on Linux SPARC
save_LIBS=$LIBS
AC_SEARCH_LIBS([__atomic_load_4], [atomic], [], [AC_MSG_NOTICE([Could not detect libatomic])])
LIBS=$save_LIBS
AS_IF([test "$ac_cv_search___atomic_load_4" = "none required" || test "$ac_cv_search___atomic_load_4" = "no"],
[AC_SUBST([LIBATOMIC_LIBS], [])],
[AC_SUBST([LIBATOMIC_LIBS], [$ac_cv_search___atomic_load_4])])
dnl We use its presence to detect C11 threads
AC_CHECK_HEADERS([threads.h])
AC_CHECK_HEADERS([sanitizer/asan_interface.h])
AC_CHECK_HEADERS([valgrind/memcheck.h])
AC_ARG_ENABLE(padlock,
AS_HELP_STRING([--disable-padlock], [unconditionally disable padlock acceleration]),
use_padlock=$enableval)
if test "$use_padlock" != "no"; then
AC_DEFINE([ENABLE_PADLOCK], 1, [Enable padlock acceleration])
AC_SUBST([ENABLE_PADLOCK])
fi
AM_CONDITIONAL(ENABLE_PADLOCK, test "$use_padlock" = "yes")
AM_CONDITIONAL(ASM_AARCH64, test x"$hw_accel" = x"aarch64")
AM_CONDITIONAL(ASM_X86_64, test x"$hw_accel" = x"x86-64")
AM_CONDITIONAL(ASM_X86_32, test x"$hw_accel" = x"x86")
AM_CONDITIONAL(ASM_X86, test x"$hw_accel" = x"x86" || test x"$hw_accel" = x"x86-64")
AM_CONDITIONAL(HAVE_GCC_GNU89_INLINE_OPTION, test "$gnu89_inline" = "yes"])
AM_CONDITIONAL(HAVE_GCC, test "$GCC" = "yes")
dnl check for getrandom()
rnd_variant="auto-detect"
AC_MSG_CHECKING([for getrandom])
AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <sys/random.h>],[
getrandom(0, 0, 0);
])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_GETRANDOM], 1, [Enable the Linux getrandom function])
rnd_variant=getrandom],
[AC_MSG_RESULT(no)])
AC_MSG_CHECKING([for KERN_ARND])
AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <sys/sysctl.h>
#ifdef __linux__
#error 1
#endif
static int name[] = {CTL_KERN, KERN_ARND};
],[
sysctl(0, 0, 0, 0, 0, 0);
])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_KERN_ARND], 1, [Enable the BSD sysctl(KERN_ARND) function])
rnd_variant=kern_arnd],
[AC_MSG_RESULT(no)])
AM_CONDITIONAL(HAVE_KERN_ARND, test "$rnd_variant" = "kern_arnd")
AC_MSG_CHECKING([for getentropy])
AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <unistd.h>
#ifdef __APPLE__
#include <sys/random.h>
#endif
#ifdef __linux__
#error 1
#endif
],[
getentropy(0, 0);
])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_GETENTROPY], 1, [Enable the OpenBSD getentropy function])
rnd_variant=getentropy],
[AC_MSG_RESULT(no)])
AM_CONDITIONAL(HAVE_GETENTROPY, test "$rnd_variant" = "getentropy")
dnl Try the hooks.m4
LIBGNUTLS_HOOKS
LIBGNUTLS_EXTRA_HOOKS
AC_ARG_ENABLE(tests,
AS_HELP_STRING([--disable-tests], [don't compile or run any tests]),
enable_tests=$enableval, enable_tests=$enable_tools)
AM_CONDITIONAL(ENABLE_TESTS, test "$enable_tests" != "no")
AC_ARG_ENABLE(fuzzer-target,
AS_HELP_STRING([--enable-fuzzer-target], [make a library intended for testing - not production]),
enable_fuzzer_target=$enableval, enable_fuzzer_target=no)
if test "$enable_fuzzer_target" != "no";then
AC_DEFINE([FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION], 1, [Enable fuzzer target -not for production])
fi
dnl
dnl check for gtk-doc
dnl
GTK_DOC_CHECK([1.14],[--flavour no-tmpl])
AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION([0.19])
m4_ifdef([AM_GNU_GETTEXT_REQUIRE_VERSION],[
AM_GNU_GETTEXT_REQUIRE_VERSION([0.19])
])
AC_C_BIGENDIAN
dnl No fork on MinGW, disable some self-tests until we fix them.
dnl Check clock_gettime and pthread_mutex_lock in libc (avoid linking to other libs)
AC_CHECK_FUNCS([fork setitimer getrusage getpwuid_r nanosleep daemon getpid localtime mmap],,)
dnl Manually check some functions by including headers first. On macOS, you
dnl normally only have the latest SDK available, containing all existing
dnl functions, but having them restricted according to target version in
dnl headers. If we bypass the headers and just try linking (as AC_CHECK_FUNCS
dnl does), we will accidentally detect functions which we shouldn't use. Set
dnl ac_cv_func_* as well, to avoid later AC_CHECK_FUNCS from other included
dnl scripts from overriding it.
AC_MSG_CHECKING([for clock_gettime])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <time.h>], [clock_gettime(0, 0);])],
[AC_MSG_RESULT(yes); ac_cv_func_clock_gettime=yes
AC_DEFINE([HAVE_CLOCK_GETTIME], 1, [Define to 1 if you have the `clock_gettime' function.])],
[AC_MSG_RESULT(no); ac_cv_func_clock_gettime=no])
AC_MSG_CHECKING([for fmemopen])
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>], [fmemopen(0, 0, 0);])],
[AC_MSG_RESULT(yes); ac_cv_func_fmemopen=yes
AC_DEFINE([HAVE_FMEMOPEN], 1, [Define to 1 if you have the `fmemopen' function.])],
[AC_MSG_RESULT(no); ac_cv_func_fmemopen=no])
AM_CONDITIONAL(HAVE_FORK, test "$ac_cv_func_fork" != "no")
AC_CHECK_FUNCS([__register_atfork secure_getenv getauxval],,)
AC_ARG_ENABLE(seccomp-tests,
AS_HELP_STRING([--enable-seccomp-tests], [unconditionally enable tests with seccomp]),
seccomp_tests=$enableval, seccomp_tests=no)
AM_CONDITIONAL(HAVE_SECCOMP_TESTS, test "$seccomp_tests" = "yes")
# check for libseccomp - used in test programs
AC_LIB_HAVE_LINKFLAGS(seccomp,, [#include <seccomp.h>
], [seccomp_init(0);])
# check for libcrypto - used in test programs
AC_LIB_HAVE_LINKFLAGS(crypto,, [#include <openssl/evp.h>
], [EVP_CIPHER_CTX_init(NULL);])
AM_CONDITIONAL(HAVE_LIBCRYPTO, test "$HAVE_LIBCRYPTO" = "yes")
AC_LIB_HAVE_LINKFLAGS(rt,, [#include <time.h>
#include <signal.h>
], [timer_create (0,0,0);])
if test "$have_win" != "yes";then
AC_CHECK_FUNCS([pthread_mutex_lock],,)
if test "$ac_cv_func_pthread_mutex_lock" != "yes";then
AC_LIB_HAVE_LINKFLAGS(pthread,, [#include <pthread.h>], [pthread_mutex_lock (0);])
fi
fi
if test "$ac_cv_func_nanosleep" != "yes";then
AC_LIB_HAVE_LINKFLAGS(rt,, [#include <time.h>], [nanosleep (0, 0);])
gnutls_needs_librt=yes
fi
if test "$ac_cv_func_clock_gettime" != "yes";then
AC_LIB_HAVE_LINKFLAGS(rt,, [#include <time.h>], [clock_gettime (0, 0);])
gnutls_needs_librt=yes
fi
if test "$have_macosx" = "yes";then
dnl Remove -no_weak_imports from LDFLAGS after testing for function
dnl availability; keeping it included later breaks code that uses
dnl FD_SET, which since Xcode 11.4 implicitly adds a call to the
dnl weakly linked function __darwin_check_fd_set_overflow. We only
dnl need it above to make sure that we don't detect functions that
dnl are linked weakly (and can end up null at runtime) unless
dnl we check for their availability at runtime.
new_LDFLAGS=""
for f in $LDFLAGS; do
if test "$f" != "-Wl,-no_weak_imports"; then
new_LDFLAGS="$new_LDFLAGS $f"
fi
done
LDFLAGS="$new_LDFLAGS"
fi
AC_ARG_WITH(included-unistring, AS_HELP_STRING([--with-included-unistring],
[disable linking with system libunistring]),
included_unistring="$withval",
included_unistring=no)
if test "$included_unistring" = yes;then
ac_have_unistring=no
else
save_LIBS=$LIBS
AC_SEARCH_LIBS(u8_normalize, unistring, [
included_unistring=no
ac_have_unistring=yes
AC_SUBST([LIBUNISTRING], [$ac_cv_search_u8_normalize])
], [
ac_cv_libunistring=no
AC_MSG_ERROR([[
***
*** Libunistring was not found. To use the included one, use --with-included-unistring
]])
])
LIBS=$save_LIBS
fi
AM_CONDITIONAL(HAVE_LIBUNISTRING, test "$ac_have_unistring" = "yes")
# specify our own suppressions file; this needs to be set before gl_INIT
DEFAULT_VALGRINDFLAGS='-q --error-exitcode=1 --leak-check=full --track-origins=yes --gen-suppressions=all'
gl_VALGRIND_TESTS_DEFAULT_NO
dnl Note that g*l_INIT are run after we check for library capabilities,
dnl to prevent issues from caching lib dependencies. See discussion
dnl in https://bugs.gentoo.org/show_bug.cgi?id=494940 and
dnl https://gnu-autoconf.7623.n7.nabble.com/Correct-way-to-check-for-clock-gettime-td12276.html
gl_INIT
ggl_INIT
unistring_INIT
# disable the extended test suite at tests/suite if asked, or if we are not running in git master
AC_ARG_ENABLE(full-test-suite,
AS_HELP_STRING([--disable-full-test-suite], [disable running very slow components of test suite]),
full_test_suite=$enableval, full_test_suite=yes)
# test if we are in git master or in release build. In release
# builds we do not use valgrind.
SUITE_FILE="${srcdir}/tests/suite/prime-check.c"
if test "$full_test_suite" = yes && test ! -f "$SUITE_FILE";then
full_test_suite=no
fi
AM_CONDITIONAL(WANT_TEST_SUITE, test "$full_test_suite" = "yes")
# parts of the extended test suite use Python
AM_PATH_PYTHON([3.6],, [:])
AC_ARG_ENABLE(oldgnutls-interop,
AS_HELP_STRING([--enable-oldgnutls-interop], [enable interoperability testing with old gnutls version]),
enable_oldgnutls_interop=$enableval, enable_oldgnutls_interop=no)
if test "$enable_oldgnutls_interop" != "no" && test "$full_test_suite" != yes;then
AC_MSG_ERROR([cannot --enable-oldgnutls-interop without --enable-full-test-suite])
fi
AM_CONDITIONAL(ENABLE_OLDGNUTLS_INTEROP, test "$enable_oldgnutls_interop" != "no")
# check for libev - used in full test suite
AC_LIB_HAVE_LINKFLAGS(ev,, [#include <ev.h>], [ev_run(0,0);])
if test "$ac_cv_libev" = yes; then
AC_SUBST([LIBEV_LIBS], [$LIBEV])
elif test "$full_test_suite" = yes;then
AC_MSG_ERROR([[***
*** libev4 was not found.
***]])
fi
dnl GCC warnings to enable
AC_ARG_ENABLE([gcc-warnings],
[AS_HELP_STRING([--disable-gcc-warnings],
[turn off lots of GCC warnings (for developers)])],
[case $enableval in
yes|no) ;;
*) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
esac
gl_gcc_warnings=$enableval],
[gl_gcc_warnings=yes]
)
if test "$gl_gcc_warnings" = yes; then
gl_WARN_ADD([-Wtype-limits], [WSTACK_CFLAGS])
nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
nw="$nw -Wc++-compat" # We don't care about C++ compilers
nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
nw="$nw -Wtraditional" # Warns on #elif which we use often
nw="$nw -Wpadded" # Our structs are not padded
nw="$nw -Wtraditional-conversion" # Too many warnings for now
nw="$nw -Wswitch-default" # Too many warnings for now
nw="$nw -Wformat-y2k" # Too many warnings for now
nw="$nw -Woverlength-strings" # We use some in tests/
nw="$nw -Wvla" # There is no point to avoid C99 variable length arrays
nw="$nw -Wformat-nonliteral" # Incompatible with gettext _()
nw="$nw -Wformat-signedness" # Too many to handle
nw="$nw -Wstrict-overflow"
nw="$nw -Wmissing-noreturn"
nw="$nw -Winline" # Too compiler dependent
nw="$nw -Wsuggest-attribute=pure" # Is it worth using attributes?
nw="$nw -Wsuggest-attribute=const" # Is it worth using attributes?
nw="$nw -Wsuggest-attribute=noreturn" # Is it worth using attributes?
nw="$nw -Wstack-protector" # Some functions cannot be protected
nw="$nw -Wunsafe-loop-optimizations" # Warnings with no point
nw="$nw -Wredundant-decls" # Some files cannot be compiled with that (gl_fd_to_handle)
nw="$nw -Wtype-limits" # Too many warnings in gnulib macros
nw="$nw -Warith-conversion" # Too compiler dependent
nw="$nw -Wmissing-variable-declarations" # asn1Parser provides no way to embed declarations in generated code
gl_MANYWARN_ALL_GCC([ws])
gl_MANYWARN_COMPLEMENT(ws, [$ws], [$nw])
for w in $ws; do
gl_WARN_ADD([$w])
done
gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
gl_WARN_ADD([-Wno-format-truncation]) # Many warnings with no point
gl_WARN_ADD([-Wimplicit-fallthrough=2])
gl_WARN_ADD([-Wabi=11])
gl_WARN_ADD([-fdiagnostics-show-option])
fi
if test "$gl_cv_opt_valgrind_tests" != no; then
gl_WARN_ADD([-fno-builtin-strcmp])
fi
AC_SUBST([WERROR_CFLAGS])
AC_SUBST([WSTACK_CFLAGS])
AC_SUBST([WARN_CFLAGS])
dnl Programs for compilation or development
AC_PROG_LN_S
LT_INIT([disable-static,win32-dll,shared])
AC_LIB_HAVE_LINKFLAGS(dl,, [#include <dlfcn.h>], [dladdr (0, 0);])
AC_ARG_ENABLE(fips140-mode,
AS_HELP_STRING([--enable-fips140-mode], [enable FIPS140-2 mode]),
enable_fips=$enableval, enable_fips=no)
AM_CONDITIONAL(ENABLE_FIPS140, test "$enable_fips" = "yes")
if [ test "$enable_fips" = "yes" ];then
if test "x$HAVE_LIBDL" = "xyes";then
AC_DEFINE([ENABLE_FIPS140], 1, [Enable FIPS140-2 mode])
AC_SUBST([FIPS140_LIBS], $LIBDL)
AC_ARG_WITH(fips140-key, AS_HELP_STRING([--with-fips140-key],
[specify the FIPS140 HMAC key for integrity]),
fips_key="$withval",
fips_key="orboDeJITITejsirpADONivirpUkvarP")
AC_DEFINE_UNQUOTED([FIPS_KEY], ["$fips_key"], [The FIPS140-2 integrity key])
AC_ARG_WITH(fips140-module-name, AS_HELP_STRING([--with-fips140-module-name],
[specify the FIPS140 module name]),
fips_module_name="$withval",
fips_module_name=none)
if test "x$fips_module_name" != xnone; then
AC_DEFINE_UNQUOTED([FIPS_MODULE_NAME], ["$fips_module_name"], [The FIPS140 module name])
fi
AC_ARG_WITH(fips140-module-version, AS_HELP_STRING([--with-fips140-module-version],
[specify the FIPS140 module version]),
fips_module_version="$withval",
fips_module_version=none)
if test "x$fips_module_version" != xnone; then
AC_DEFINE_UNQUOTED([FIPS_MODULE_VERSION], ["$fips_module_version"], [The FIPS140 module version])
fi
AC_CHECK_FUNCS(dl_iterate_phdr)
else
enable_fips=no
AC_MSG_WARN([[
***
*** This system is not supported in FIPS140 mode.
*** libdl and dladdr() are required.
*** ]])
fi
fi
AC_ARG_ENABLE(strict-x509,
AS_HELP_STRING([--enable-strict-x509], [enable stricter sanity checks for x509 certificates]),
enable_strict_x509=$enableval, enable_strict_x509=no)
if test "$enable_strict_x509" != "no"; then
AC_DEFINE([STRICT_X509], 1, [Enable stricter sanity checks for x509 certificates])
fi
AC_ARG_WITH([pkcs12-iter-count],
[AS_HELP_STRING([--with-pkcs12-iter-count],
[specify iteration count for PKCS\#12 key derivation @<:@default=600000@:>@])],
[pkcs12_iter_count="$withval"],
[pkcs12_iter_count=600000])
AC_DEFINE_UNQUOTED([PKCS12_ITER_COUNT], [$pkcs12_iter_count],
[The iteration count for PKCS\#12 key derivation])
AC_SUBST([PKCS12_ITER_COUNT], [$pkcs12_iter_count])
PKG_CHECK_MODULES(CMOCKA, [cmocka >= 1.0.1], [with_cmocka=yes], [with_cmocka=no])
AM_CONDITIONAL(HAVE_CMOCKA, test "$with_cmocka" != "no")
AC_ARG_WITH(idn, AS_HELP_STRING([--without-idn],
[disable support for IDNA]),
try_libidn2="$withval",
try_libidn2=yes)
idna_support=no
with_libidn2=no
if test "$try_libidn2" = yes;then
PKG_CHECK_MODULES(LIBIDN2, [libidn2 >= 2.0.0], [with_libidn2=yes], [with_libidn2=no])
if test "${with_libidn2}" = "yes";then
idna_support="IDNA 2008 (libidn2)"
AC_DEFINE([HAVE_LIBIDN2], 1, [Define if IDNA 2008 support is enabled.])
if test "x$GNUTLS_REQUIRES_PRIVATE" = "x"; then
GNUTLS_REQUIRES_PRIVATE="Requires.private: libidn2"
else
GNUTLS_REQUIRES_PRIVATE="${GNUTLS_REQUIRES_PRIVATE}, libidn2"
fi
else
AC_MSG_WARN(*** LIBIDN2 was not found. You will not be able to use IDN2008 support)
fi
fi
AM_CONDITIONAL(HAVE_LIBIDN2, test "$with_libidn2" != "no")
if test "x$have_vista_dynamic" = "xno"; then
AC_CHECK_TYPES([BCRYPT_ALG_HANDLE],[
GNUTLS_LIBS_PRIVATE="${GNUTLS_LIBS_PRIVATE} -lbcrypt"
],[],[#include <windows.h>
#include <bcrypt.h>])
fi
AM_CONDITIONAL(HAVE_BCRYPT, test "$ac_cv_type_BCRYPT_ALG_HANDLE" = "yes")
AC_ARG_ENABLE(non-suiteb-curves,
AS_HELP_STRING([--disable-non-suiteb-curves], [disable curves not in SuiteB]),
enable_non_suiteb=$enableval, enable_non_suiteb=yes)
if test "$enable_non_suiteb" = "yes";then
dnl nettle_secp_192r1 is not really a function
AC_CHECK_LIB(hogweed, nettle_get_secp_192r1, enable_non_suiteb=yes, enable_non_suiteb=no, [$HOGWEED_LIBS $NETTLE_LIBS])
if test "$enable_non_suiteb" = "yes";then
AC_DEFINE([ENABLE_NON_SUITEB_CURVES], 1, [Enable all curves])
fi
fi
AM_CONDITIONAL(ENABLE_NON_SUITEB_CURVES, test "$enable_non_suiteb" = "yes")
AC_ARG_ENABLE(dsa,
AS_HELP_STRING([--disable-dsa], [disable DSA]),
enable_dsa=$enableval, enable_dsa=yes)
if test x$enable_dsa != xno; then
AC_DEFINE([ENABLE_DSA], 1, [Define if DSA is enabled.])
fi
AM_CONDITIONAL([ENABLE_DSA], [test x$enable_dsa != xno])
# We MUST require a Nettle version that has rsa_sec_decrypt now.
save_LIBS=$LIBS
LIBS="$LIBS $HOGWEED_LIBS $NETTLE_LIBS $GMP_LIBS"
AC_CHECK_FUNCS(nettle_rsa_sec_decrypt,
[],
[AC_MSG_ERROR([Nettle lacks the required rsa_sec_decrypt function])]
)
LIBS=$save_LIBS
# Check for GOST28147
save_LIBS=$LIBS
LIBS="$LIBS $NETTLE_LIBS"
AC_CHECK_FUNCS(nettle_gost28147_set_key)
LIBS=$save_LIBS
# Check for Streebog support
save_LIBS=$LIBS
LIBS="$LIBS $NETTLE_LIBS"
AC_CHECK_FUNCS(nettle_streebog512_update)
LIBS=$save_LIBS
# Check for Magma
save_LIBS=$LIBS
LIBS="$LIBS $NETTLE_LIBS"
AC_CHECK_FUNCS(nettle_magma_set_key)
LIBS=$save_LIBS
# Check for Kuznyechik
save_LIBS=$LIBS
LIBS="$LIBS $NETTLE_LIBS"
AC_CHECK_FUNCS(nettle_kuznyechik_set_key)
LIBS=$save_LIBS
# Check for CMAC MAGMA support
save_LIBS=$LIBS
LIBS="$LIBS $NETTLE_LIBS"
AC_CHECK_FUNCS(nettle_cmac_magma_update)
LIBS=$save_LIBS
# Check for CMAC KUZNYECHIK support
save_LIBS=$LIBS
LIBS="$LIBS $NETTLE_LIBS"
AC_CHECK_FUNCS(nettle_cmac_kuznyechik_update)
LIBS=$save_LIBS
# Check for SIV-GCM
save_LIBS=$LIBS
LIBS="$LIBS $NETTLE_LIBS"
AC_CHECK_FUNCS(nettle_siv_gcm_encrypt_message)
LIBS=$save_LIBS
AM_CONDITIONAL([NEED_SIV_GCM], [test "$ac_cv_func_nettle_siv_gcm_encrypt_message" != yes])
# Check for RSA-OAEP
save_LIBS=$LIBS
LIBS="$LIBS $HOGWEED_LIBS $NETTLE_LIBS $GMP_LIBS"
AC_CHECK_FUNCS(nettle_rsa_oaep_sha256_encrypt)
LIBS=$save_LIBS
AM_CONDITIONAL([NEED_RSA_OAEP], [test "$ac_cv_func_nettle_rsa_oaep_sha256_encrypt" != yes])
# Check for specialized AES-CBC encryption
save_LIBS=$LIBS
LIBS="$LIBS $NETTLE_LIBS"
AC_CHECK_FUNCS(nettle_cbc_aes128_encrypt)
LIBS=$save_LIBS
# Check for incremental SHAKE
save_LIBS=$LIBS
LIBS="$LIBS $NETTLE_LIBS"
AC_CHECK_FUNCS(nettle_sha3_128_shake_output)
LIBS=$save_LIBS
AM_CONDITIONAL([NEED_SHAKE_OUTPUT], [test "$ac_cv_func_nettle_sha3_128_shake_output" != yes])
# Check sonames of the linked libraries needed for FIPS selftests.
save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS $GMP_CFLAGS"
save_LIBS=$LIBS
LIBS="$LIBS $GMP_LIBS"
LIBGNUTLS_CHECK_SONAME([gmp], [AC_LANG_PROGRAM([
#include <gmp.h>],[
mpz_t n;
mpz_init(n);])])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS $NETTLE_CFLAGS"
save_LIBS=$LIBS
LIBS="$LIBS $NETTLE_LIBS"
LIBGNUTLS_CHECK_SONAME([nettle], [AC_LANG_PROGRAM([
#include <nettle/sha2.h>],[
struct sha256_ctx ctx;
sha256_init(&ctx);])])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
save_CFLAGS=$CFLAGS
# <nettle/bignum.h> includes <gmp.h>
CFLAGS="$CFLAGS $HOGWEED_CFLAGS $GMP_CFLAGS"
save_LIBS=$LIBS
LIBS="$LIBS $HOGWEED_LIBS"
LIBGNUTLS_CHECK_SONAME([hogweed], [AC_LANG_PROGRAM([
#include <nettle/rsa.h>],[
struct rsa_private_key priv;
nettle_rsa_private_key_init(&priv);])])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
gnutls_so=libgnutls.so.`expr "$LT_CURRENT" - "$LT_AGE"`
AC_DEFINE_UNQUOTED([GNUTLS_LIBRARY_SONAME], ["$gnutls_so"], [The soname of gnutls library])
AC_SUBST([gnutls_so])
AC_MSG_CHECKING([whether to build libdane])
AC_ARG_ENABLE(libdane,
AS_HELP_STRING([--disable-libdane],
[disable the built of libdane]),
enable_dane=$enableval, enable_dane=yes)
AC_MSG_RESULT($enable_dane)
if test "$enable_dane" != "no"; then
LIBS="$oldlibs -lunbound"
AC_MSG_CHECKING([for unbound library])
AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <unbound.h>],[
struct ub_ctx* ctx;
ctx = ub_ctx_create();])],
[AC_MSG_RESULT(yes)
AC_SUBST([UNBOUND_LIBS], [-lunbound])
AC_SUBST([UNBOUND_CFLAGS], [])
AC_DEFINE([HAVE_DANE], 1, [Enable the DANE library])
enable_dane=yes],
[AC_MSG_RESULT(no)
AC_MSG_WARN([[
***
*** libunbound was not found. Libdane will not be built.
*** ]])
enable_dane=no])
LIBS="$oldlibs"
fi
AM_CONDITIONAL(ENABLE_DANE, test "$enable_dane" = "yes")
AC_ARG_WITH(unbound-root-key-file, AS_HELP_STRING([--with-unbound-root-key-file],
[specify the unbound root key file]),
unbound_root_key_file="$withval",
if test "$have_win" = yes; then
unbound_root_key_file="C:\\Program Files\\Unbound\\root.key"
else
if test -f /var/lib/unbound/root.key;then
unbound_root_key_file="/var/lib/unbound/root.key"
else
if test -f /usr/share/dns/root.key;then
unbound_root_key_file="/usr/share/dns/root.key"
else
unbound_root_key_file="/etc/unbound/root.key"
fi
fi
fi
)
AC_DEFINE_UNQUOTED([UNBOUND_ROOT_KEY_FILE],
["$unbound_root_key_file"], [The DNSSEC root key file])
system_config_file="/etc/gnutls/config"
AC_ARG_WITH(system-priority-file, AS_HELP_STRING([--with-system-priority-file],
[specify the system-wide config file (set empty to disable)]),
system_config_file="$withval"
)
AM_CONDITIONAL(DISABLE_SYSTEM_CONFIG, test -z "${system_config_file}")
if test -z "${system_config_file}";then
AC_DEFINE([DISABLE_SYSTEM_CONFIG], 1, [Whether to disable system configuration])
fi
AC_DEFINE_UNQUOTED([SYSTEM_PRIORITY_FILE],
["$system_config_file"], [The system-wide gnutls configuration file])
AC_ARG_WITH(default-priority-string, AS_HELP_STRING([--with-default-priority-string],
[specify the default priority string used by gnutls_set_default_priority (default is NORMAL)]),
prio_string="$withval",
prio_string="NORMAL")
AC_DEFINE_UNQUOTED([DEFAULT_PRIORITY_STRING], ["$prio_string"], [The default priority string])
dnl Check for p11-kit
P11_KIT_MINIMUM=0.23.1
AC_ARG_WITH(p11-kit,
AS_HELP_STRING([--without-p11-kit],
[Build without p11-kit and PKCS#11 support]))
if test "$with_p11_kit" != "no"; then
PKG_CHECK_MODULES(P11_KIT, [p11-kit-1 >= $P11_KIT_MINIMUM], [with_p11_kit=yes], [with_p11_kit=no])
if test "$with_p11_kit" != "no";then
AC_DEFINE([ENABLE_PKCS11], 1, [Build PKCS#11 support])
if test "x$GNUTLS_REQUIRES_PRIVATE" = "x"; then
GNUTLS_REQUIRES_PRIVATE="Requires.private: p11-kit-1"
else
GNUTLS_REQUIRES_PRIVATE="${GNUTLS_REQUIRES_PRIVATE}, p11-kit-1"
fi
else
with_p11_kit=no
AC_MSG_ERROR([[
***
*** p11-kit >= $P11_KIT_MINIMUM was not found. To disable PKCS #11 support
*** use --without-p11-kit, otherwise you may get p11-kit from
*** https://p11-glue.freedesktop.org/p11-kit.html
*** ]])
fi
fi
AM_CONDITIONAL(P11KIT_0_23_11_API, $PKG_CONFIG --atleast-version=0.23.11 p11-kit-1)
AM_CONDITIONAL(ENABLE_PKCS11, test "$with_p11_kit" != "no")
save_LIBS=$LIBS
LIBS="$LIBS -lm"
LIBGNUTLS_CHECK_SONAME([m], [AC_LANG_PROGRAM([
#include <math.h>],[
trunc (0);])])
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <dlfcn.h>
#include <stdlib.h>
]],
[[void *handle = dlopen("$M_LIBRARY_SONAME", RTLD_LAZY | RTLD_GLOBAL);
return handle != NULL ? 0 : 1;
]])],
[ac_cv_dlopen_soname_works=yes],
[ac_cv_dlopen_soname_works=no],
[ac_cv_dlopen_soname_works=cross-compiling])
AM_CONDITIONAL([ENABLE_DLOPEN], [test "$ac_cv_dlopen_soname_works" = yes])
need_ltlibdl=no
AC_ARG_WITH(tpm2,
AS_HELP_STRING([--without-tpm2],
[Disable TPM2 support.]),
[with_tpm2=$withval], [with_tpm2=auto])
AS_IF([test "$with_tpm2" != no], [
PKG_CHECK_MODULES(TSS2_ESYS, [tss2-esys],
[have_tss2_esys=yes], [have_tss2_esys=no])
PKG_CHECK_MODULES(TSS2_MU, [tss2-mu],
[have_tss2_mu=yes], [have_tss2_mu=no])
PKG_CHECK_MODULES(TSS2_TCTILDR, [tss2-tctildr],
[have_tss2_tctildr=yes], [have_tss2_tctildr=no])
])
AS_IF([test "$have_tss2_esys" = yes && test "$have_tss2_mu" = yes && test "$have_tss2_tctildr" = yes], [
tss2lib="tss2-esys tss2-mu tss2-tctildr"
AC_DEFINE([HAVE_TSS2], 1, [Have TSS2])
with_tpm2=yes
need_ltlibdl=yes
],
[test "$with_tpm2" = yes], [
AC_MSG_ERROR([[