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Merge topic 'compile-features-C-language'

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e0890d03 Features: Extend concept to C language.
This commit is contained in:
Brad King
2014-05-20 09:40:14 -04:00
committed by CMake Topic Stage
parent 8897116df8 e0890d03a4
commit c1edede31f
57 changed files with 630 additions and 27 deletions
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Modules/Compiler/GNU-C-FeatureTests.cmake
+12
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@@ -0,0 +1,12 @@
set(_cmake_oldestSupported "(__GNUC__ * 100 + __GNUC_MINOR__) >= 407")
set(GNU46_C11 "${_cmake_oldestSupported} && __STDC_VERSION__ >= 201112L")
set(_cmake_feature_test_c_static_assert "${GNU46_C11}")
# Since 4.4 at least:
set(GNU44_C99 "${_cmake_oldestSupported} && __STDC_VERSION__ >= 199901L")
set(_cmake_feature_test_c_restrict "${GNU44_C99}")
set(_cmake_feature_test_c_variadic_macros "${GNU44_C99}")
set(GNU_C90 "${_cmake_oldestSupported} && !defined(__STDC_VERSION__)")
set(_cmake_feature_test_c_function_prototypes "${GNU_C90}")
Modules/Compiler/GNU-C.cmake
+32
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@@ -1,2 +1,34 @@
include(Compiler/GNU)
__compiler_gnu(C)
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.7)
set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90")
set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90")
set(CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99")
set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99")
set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11")
set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11")
endif()
# This may change in a future GNU version.
set(CMAKE_C_STANDARD_DEFAULT 90)
macro(cmake_record_c_compile_features)
macro(_get_gcc_features std_version list)
record_compiler_features(C "-std=${std_version}" ${list})
endmacro()
if (UNIX AND NOT APPLE AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.7)
_get_gcc_features(c90 CMAKE_C90_COMPILE_FEATURES)
if (_result EQUAL 0)
_get_gcc_features(c99 CMAKE_C99_COMPILE_FEATURES)
endif()
if (_result EQUAL 0)
_get_gcc_features(c11 CMAKE_C11_COMPILE_FEATURES)
endif()
else()
set(_result 0)
endif()
endmacro()