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FindOpenMP: fix detecting compilers that do not need any special flag (#14567)

This commit is contained in:
Rolf Eike Beer 2013-11-13 21:41:33 +01:00
parent 4abdee6ba3
commit ebf70b037d
1 changed files with 5 additions and 4 deletions
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9
Modules/FindOpenMP.cmake
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@ -31,6 +31,8 @@ set(_OPENMP_REQUIRED_VARS)
function(_OPENMP_FLAG_CANDIDATES LANG)
set(OpenMP_FLAG_CANDIDATES
#Empty, if compiler automatically accepts openmp
" "
#GNU
"-fopenmp"
#Microsoft Visual Studio
@ -39,8 +41,6 @@ function(_OPENMP_FLAG_CANDIDATES LANG)
"-Qopenmp"
#PathScale, Intel
"-openmp"
#Empty, if compiler automatically accepts openmp
" "
#Sun
"-xopenmp"
#HP
@ -64,6 +64,7 @@ function(_OPENMP_FLAG_CANDIDATES LANG)
set(OMP_FLAG_PGI "-mp")
set(OMP_FLAG_SunPro "-xopenmp")
set(OMP_FLAG_XL "-qsmp")
set(OMP_FLAG_Cray " ")
# Move the flag that matches the compiler to the head of the list,
# this is faster and doesn't clutter the output that much. If that
@ -100,7 +101,7 @@ if(CMAKE_C_COMPILER_LOADED)
include(${CMAKE_CURRENT_LIST_DIR}/CheckCSourceCompiles.cmake)
endif()
foreach(FLAG ${OpenMP_C_FLAG_CANDIDATES})
foreach(FLAG IN LISTS OpenMP_C_FLAG_CANDIDATES)
set(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
set(CMAKE_REQUIRED_FLAGS "${FLAG}")
unset(OpenMP_FLAG_DETECTED CACHE)
@ -134,7 +135,7 @@ if(CMAKE_CXX_COMPILER_LOADED)
set(OpenMP_CXX_TEST_SOURCE ${OpenMP_C_TEST_SOURCE})
endif()
foreach(FLAG ${OpenMP_CXX_FLAG_CANDIDATES})
foreach(FLAG IN LISTS OpenMP_CXX_FLAG_CANDIDATES)
set(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
set(CMAKE_REQUIRED_FLAGS "${FLAG}")
unset(OpenMP_FLAG_DETECTED CACHE)