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FindOpenMP: Improve OMP libraries search

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This supports libraries given as full path and filters libraries given
in CMAKE_<LANG>_STANDARD_LIBRARIES.

Fixes: #17351
This commit is contained in:
Christian Pfeiffer 2017-10-13 16:17:08 +02:00 committed by Brad King
parent e25d88ecb9
commit f4cc71099a
1 changed files with 21 additions and 7 deletions
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28
Modules/FindOpenMP.cmake
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@ -211,13 +211,27 @@ function(_OPENMP_GET_FLAGS LANG FLAG_MODE OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR)
unset(_OPENMP_LIB_NAMES)
foreach(_OPENMP_IMPLICIT_LIB IN LISTS OpenMP_${LANG}_IMPLICIT_LIBRARIES)
if(NOT "${_OPENMP_IMPLICIT_LIB}" IN_LIST CMAKE_${LANG}_IMPLICIT_LINK_LIBRARIES)
find_library(OpenMP_${_OPENMP_IMPLICIT_LIB}_LIBRARY
NAMES "${_OPENMP_IMPLICIT_LIB}"
HINTS ${OpenMP_${LANG}_IMPLICIT_LINK_DIRS}
)
mark_as_advanced(OpenMP_${_OPENMP_IMPLICIT_LIB}_LIBRARY)
list(APPEND _OPENMP_LIB_NAMES ${_OPENMP_IMPLICIT_LIB})
get_filename_component(_OPENMP_IMPLICIT_LIB_DIR "${_OPENMP_IMPLICIT_LIB}" DIRECTORY)
get_filename_component(_OPENMP_IMPLICIT_LIB_NAME "${_OPENMP_IMPLICIT_LIB}" NAME)
get_filename_component(_OPENMP_IMPLICIT_LIB_PLAIN "${_OPENMP_IMPLICIT_LIB}" NAME_WE)
string(REGEX REPLACE "([][+.*?()^$])" "\\\\\\1" _OPENMP_IMPLICIT_LIB_PLAIN_ESC "${_OPENMP_IMPLICIT_LIB_PLAIN}")
string(REGEX REPLACE "([][+.*?()^$])" "\\\\\\1" _OPENMP_IMPLICIT_LIB_PATH_ESC "${_OPENMP_IMPLICIT_LIB}")
if(NOT ( "${_OPENMP_IMPLICIT_LIB}" IN_LIST CMAKE_${LANG}_IMPLICIT_LINK_LIBRARIES
OR "${CMAKE_${LANG}_STANDARD_LIBRARIES}" MATCHES "(^| )(-Wl,)?(-l)?(${_OPENMP_IMPLICIT_LIB_PLAIN_ESC}|${_OPENMP_IMPLICIT_LIB_PATH_ESC})( |$)"
OR "${CMAKE_${LANG}_LINK_EXECUTABLE}" MATCHES "(^| )(-Wl,)?(-l)?(${_OPENMP_IMPLICIT_LIB_PLAIN_ESC}|${_OPENMP_IMPLICIT_LIB_PATH_ESC})( |$)" ) )
if(_OPENMP_IMPLICIT_LIB_DIR)
set(OpenMP_${_OPENMP_IMPLICIT_LIB_PLAIN}_LIBRARY "${_OPENMP_IMPLICIT_LIB}" CACHE FILEPATH
"Path to the ${_OPENMP_IMPLICIT_LIB_PLAIN} library for OpenMP")
else()
find_library(OpenMP_${_OPENMP_IMPLICIT_LIB_PLAIN}_LIBRARY
NAMES "${_OPENMP_IMPLICIT_LIB_NAME}"
DOC "Path to the ${_OPENMP_IMPLICIT_LIB_PLAIN} library for OpenMP"
HINTS ${OpenMP_${LANG}_IMPLICIT_LINK_DIRS}
CMAKE_FIND_ROOT_PATH_BOTH
)
endif()
mark_as_advanced(OpenMP_${_OPENMP_IMPLICIT_LIB_PLAIN}_LIBRARY)
list(APPEND _OPENMP_LIB_NAMES ${_OPENMP_IMPLICIT_LIB_PLAIN})
endif()
endforeach()
set("${OPENMP_LIB_NAMES_VAR}" "${_OPENMP_LIB_NAMES}" PARENT_SCOPE)