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FindOpenMP: Refine list of flags to try

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This commit is contained in:
Christian Pfeiffer 2017-05-08 18:26:17 +02:00
parent 22d0a83a4c
commit ec5c6bc9bc
1 changed files with 10 additions and 5 deletions
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15
Modules/FindOpenMP.cmake
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@ -76,10 +76,10 @@ cmake_policy(SET CMP0057 NEW) # if IN_LIST
function(_OPENMP_FLAG_CANDIDATES LANG)
if(NOT OpenMP_${LANG}_FLAG)
set(OpenMP_FLAG_CANDIDATES "")
unset(OpenMP_FLAG_CANDIDATES)
set(OMP_FLAG_GNU "-fopenmp")
set(OMP_FLAG_Clang "-fopenmp=libomp" "-fopenmp=libiomp5")
set(OMP_FLAG_Clang "-fopenmp=libomp" "-fopenmp=libiomp5" "-fopenmp")
set(OMP_FLAG_HP "+Oopenmp")
if(WIN32)
set(OMP_FLAG_Intel "-Qopenmp")
@ -92,16 +92,21 @@ function(_OPENMP_FLAG_CANDIDATES LANG)
set(OMP_FLAG_MIPSpro "-mp")
set(OMP_FLAG_MSVC "-openmp")
set(OMP_FLAG_PathScale "-openmp")
set(OMP_FLAG_NAG "-openmp")
set(OMP_FLAG_Absoft "-openmp")
set(OMP_FLAG_PGI "-mp")
set(OMP_FLAG_SunPro "-xopenmp")
set(OMP_FLAG_XL "-qsmp=omp")
# Cray compiles with OpenMP automatically
set(OMP_FLAG_Cray " ")
# If we know the correct flags, use those
if(DEFINED OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID})
list(APPEND OpenMP_FLAG_CANDIDATES "${OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}}")
set(OpenMP_FLAG_CANDIDATES "${OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}}")
# Fall back to reasonable default tries otherwise
else()
set(OpenMP_FLAG_CANDIDATES "-openmp" "-fopenmp" "-mp" " ")
endif()
list(APPEND OpenMP_FLAG_CANDIDATES " ")
set(OpenMP_${LANG}_FLAG_CANDIDATES "${OpenMP_FLAG_CANDIDATES}" PARENT_SCOPE)
else()
set(OpenMP_${LANG}_FLAG_CANDIDATES "${OpenMP_${LANG}_FLAG}" PARENT_SCOPE)