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Features: Fix GNU 4.4 and 4.5 C standard level flags

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The C90 flags were only the "89" versions until GNU 4.5.
The C11 flags were not introduced until GNU 4.6.
This commit is contained in:
Brad King 2015-01-21 15:45:39 -05:00
parent 7f4154a4aa
commit 965a50dcea
1 changed files with 10 additions and 3 deletions
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13
Modules/Compiler/GNU-C.cmake
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@ -1,10 +1,15 @@
include(Compiler/GNU)
__compiler_gnu(C)
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.4)
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.5)
set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90")
set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90")
elseif (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.4)
set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c89")
set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu89")
endif()
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.4)
set(CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99")
set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99")
endif()
@ -12,7 +17,7 @@ endif()
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.7)
set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11")
set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11")
elseif (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.4)
elseif (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.6)
set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c1x")
set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu1x")
endif()
@ -29,8 +34,10 @@ macro(cmake_record_c_compile_features)
endmacro()
set(_result 0)
if (UNIX AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.4)
if (UNIX AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.6)
_get_gcc_features(${CMAKE_C11_STANDARD_COMPILE_OPTION} CMAKE_C11_COMPILE_FEATURES)
endif()
if (UNIX AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.4)
if (_result EQUAL 0)
_get_gcc_features(${CMAKE_C99_STANDARD_COMPILE_OPTION} CMAKE_C99_COMPILE_FEATURES)
endif()