Remove redundant cmake stuff

CMakeLists.txt

@@ -1,5 +1,5 @@
 #****************************************************************************#
-#       Copyright (C) 2016 Florent Hivert <[email protected]>,           #
+#  Copyright (C) 2016-2023 Florent Hivert <[email protected]>,           #
 #                                                                            #
 #  Distributed under the terms of the GNU General Public License (GPL)       #
 #                                                                            #
@@ -10,7 +10,7 @@
 #                                                                            #
 #  The full text of the GPL is available at:                                 #
 #                                                                            #
-#                  http://www.gnu.org/licenses/                               #
+#                  http://www.gnu.org/licenses/                              #
 #****************************************************************************#
 
 # Require at least 3.8 so that we can set cmake_policy CMP0067 below
@@ -32,7 +32,6 @@ message(STATUS "**** Build type = ${CMAKE_BUILD_TYPE}")
 # set(CMAKE_BUILD_TYPE Debug)
 # set(CMAKE_VERBOSE_MAKEFILE 1)
 
-
 ################################
 # General compiler configuration
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
@@ -50,56 +49,11 @@ include(CheckIncludeFileCXX)
 include(CheckCXXSourceCompiles)
 include(CheckCXXCompilerFlag)
 
-## Check for buggy constexpr support G++ 5.0
-# check_cxx_source_compiles(
-#   "
-#   using T = int;
-#   constexpr int exec(T f()) { return f(); }
-#   constexpr int foo() { return 1; }
-#   static_assert(exec(foo) == 1, \"Failed exec\");
-#   int main() {}
-#   "
-#   HPCOMBI_CONSTEXPR_FUN_ARGS)
-
 check_cxx_compiler_flag('-march=native' HPCOMBI_HAVE_FLAG_ARCH_NATIVE)
 check_cxx_compiler_flag('-mtune=native' HPCOMBI_HAVE_FLAG_TUNE_NATIVE)
 # TODO check for -funroll-loops + -flax-vector-constexpr
 # TODO only check for and set the flags required to make HPCombi work
 
-
-#check_cxx_compiler_flag('-mavx2' HPCOMBI_HAVE_FLAG_AVX2)
-#check_cxx_compiler_flag('-mavx512bw' HPCOMBI_HAVE_FLAG_AVX512BW)
-
-## Check for Intel intrisics
-# check_include_file_cxx("x86intrin.h" HPCOMBI_HAVE_X86INTRIN)
-# if (NOT ${HPCOMBI_HAVE_FLAG_AVX} OR NOT ${HPCOMBI_HAVE_X86INTRIN})
-#   message(FATAL_ERROR "No SSE/AVX compiler intrinsics")
-# endif()
-# file(READ ${CMAKE_SOURCE_DIR}/list_intrin.txt hpcombi_intrinsics)
-# string(REPLACE ";" "|" hpcombi_intrinsics "${hpcombi_intrinsics}")
-# string(REPLACE "\n" ";" hpcombi_intrinsics "${hpcombi_intrinsics}")
-# foreach (intrin ${hpcombi_intrinsics})
-#   if ("${intrin}" MATCHES "^#" ) # Comment
-#     continue()
-#   endif()
-#   string(REPLACE "|" ";" intrin "${intrin}")
-#   list(GET intrin 0 intrin_name)
-#   list(GET intrin 1 intrin_params)
-#   set(CMAKE_REQUIRED_FLAGS "-mavx")
-#   check_cxx_source_compiles("
-#     #include<x86intrin.h>
-#     int main() {
-#       ${intrin_name}(${intrin_params});
-#       return 0;
-#     }
-#   "
-#   "HPCOMBI_HAVE_${intrin_name}"
-#   )
-#   if (NOT "${HPCOMBI_HAVE_${intrin_name}}")
-#     message(FATAL_ERROR "Intrinsic ${intrin_name} not supported by compiler")
-#   endif()
-# endforeach()
-
 add_compile_options(-funroll-loops -flax-vector-conversions)
 if (HPCOMBI_HAVE_FLAG_ARCH_NATIVE)
     add_compile_options(-march=native)
@@ -130,10 +84,8 @@ IF (BUILD_TESTING)
 ENDIF(BUILD_TESTING)
 
 #####################
-# Is this needed ?
-configure_file(${CMAKE_SOURCE_DIR}/.VERSION.in ${CMAKE_BINARY_DIR}/.VERSION)
 
-set(AUTOGENERATED_WARNING "WARNING: THIS IS A CMAKE AUTO-GENERATED FILE.")
+configure_file(${CMAKE_SOURCE_DIR}/.VERSION.in ${CMAKE_BINARY_DIR}/.VERSION)
 
 ####################
 # Installation
@@ -156,7 +108,6 @@ install (
 # configure_file(${CMAKE_CURRENT_SOURCE_DIR}/hpcombi.pc.in
 #                ${CMAKE_CURRENT_BINARY_DIR}/hpcombi.pc @ONLY)
 
-
 #################
 # Packing stuff
 #