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[Polly] Add -std=c99 flag only to C source files 

Summary: Adding the flag to C++ source files emits a warning, hence we set the compile flag depending on the file's language.

Reviewers: grosser

Subscribers: Meinersbur, pollydev, llvm-commits

Projects: #polly

Differential Revision: http://reviews.llvm.org/D10809

llvm-svn: 240986
This commit is contained in:
Michael Kruse 2015-06-29 19:57:59 +00:00
parent 6e19ed89a0
commit acc9ad5991
1 changed files with 7 additions and 2 deletions
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9
polly/cmake/polly_macros.cmake
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@ -72,12 +72,17 @@ macro(add_polly_loadable_module name)
endif()
endmacro(add_polly_loadable_module)
# # Use C99-compatible compile mode for all C source files of a target.
# Use C99-compatible compile mode for all C source files of a target.
function(target_enable_c99 _target)
if(CMAKE_VERSION VERSION_GREATER "3.1")
set_target_properties("${_target}" PROPERTIES C_STANDARD 99)
elseif(CMAKE_COMPILER_IS_GNUCC)
get_target_property(_sources "${_target}" SOURCES)
set_source_files_properties(${_sources} COMPILE_FLAGS "-std=gnu99")
foreach(_file IN LISTS _sources)
get_source_file_property(_lang "${_file}" LANGUAGE)
if(_lang STREQUAL "C")
set_source_files_properties(${_file} COMPILE_FLAGS "-std=gnu99")
endif()
endforeach()
endif()
endfunction()