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authorBrad King <brad.king@kitware.com>2013-04-22 12:50:08 (GMT)
committerBrad King <brad.king@kitware.com>2013-04-22 12:50:08 (GMT)
commit52723722c78d0fe474e6f03890d70283e9340bab (patch)
treede8c076bbcb1ff44955edfdc07acc70dfb353674 /Modules/CheckCCompilerFlag.cmake
parente6c3595fde100b62f021ddb253b81fe3ecc9328b (diff)
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Check{C,CXX}CompilerFlag: Test using C locale (#14102)
Set the locale to C while running the compiler for these checks because we match the resulting warning messages in English only. Suggested-by: Marco Nolden <m.nolden@dkfz-heidelberg.de>
Diffstat (limited to 'Modules/CheckCCompilerFlag.cmake')
-rw-r--r--Modules/CheckCCompilerFlag.cmake12
1 files changed, 12 insertions, 0 deletions
diff --git a/Modules/CheckCCompilerFlag.cmake b/Modules/CheckCCompilerFlag.cmake
index 08e80f7..02f7cb6 100644
--- a/Modules/CheckCCompilerFlag.cmake
+++ b/Modules/CheckCCompilerFlag.cmake
@@ -26,6 +26,12 @@ include(CheckCSourceCompiles)
macro (CHECK_C_COMPILER_FLAG _FLAG _RESULT)
set(SAFE_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}")
set(CMAKE_REQUIRED_DEFINITIONS "${_FLAG}")
+ # Normalize locale during test compilation.
+ set(_CheckCCompilerFlag_LOCALE_VARS LC_ALL LC_MESSAGES LANG)
+ foreach(v ${_CheckCCompilerFlag_LOCALE_VARS})
+ set(_CheckCCompilerFlag_SAVED_${v} "$ENV{${v}}")
+ set(ENV{${v}} C)
+ endforeach()
CHECK_C_SOURCE_COMPILES("int main(void) { return 0; }" ${_RESULT}
# Some compilers do not fail with a bad flag
FAIL_REGEX "command line option .* is valid for .* but not for C" # GNU
@@ -41,5 +47,11 @@ macro (CHECK_C_COMPILER_FLAG _FLAG _RESULT)
FAIL_REGEX "command option .* is not recognized" # XL
FAIL_REGEX "WARNING: unknown flag:" # Open64
)
+ foreach(v ${_CheckCCompilerFlag_LOCALE_VARS})
+ set(ENV{${v}} ${_CheckCCompilerFlag_SAVED_${v}})
+ unset(_CheckCCompilerFlag_SAVED_${v})
+ endforeach()
+ unset(_CheckCCompilerFlag_LOCALE_VARS)
+
set (CMAKE_REQUIRED_DEFINITIONS "${SAFE_CMAKE_REQUIRED_DEFINITIONS}")
endmacro ()