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FindOpenMP: Simplify compiler driver check

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The compiler driver's verbose flag is needed only when linking because
we parse its output to get the implicit link information added by the
OpenMP flag.
This commit is contained in:
Brad King 2024-09-24 15:23:49 -04:00
parent 42bf0f596e
commit 534923428a
1 changed files with 2 additions and 14 deletions
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16
Modules/FindOpenMP.cmake
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@ -217,19 +217,9 @@ function(_OPENMP_GET_FLAGS LANG FLAG_MODE OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR)
_OPENMP_PREPARE_SOURCE("${LANG}" TEST_SOURCE OpenMPTryFlag
_OPENMP_TEST_SRC_NAME _OPENMP_TEST_SRC_CONTENT)
unset(OpenMP_VERBOSE_COMPILE_OPTIONS)
separate_arguments(OpenMP_VERBOSE_OPTIONS NATIVE_COMMAND "${CMAKE_${LANG}_VERBOSE_FLAG}")
foreach(_VERBOSE_OPTION IN LISTS OpenMP_VERBOSE_OPTIONS)
if(NOT _VERBOSE_OPTION MATCHES "^-Wl,")
list(APPEND OpenMP_VERBOSE_COMPILE_OPTIONS ${_VERBOSE_OPTION})
endif()
endforeach()
foreach(OPENMP_FLAG IN LISTS OpenMP_${LANG}_FLAG_CANDIDATES)
set(OPENMP_FLAGS_TEST "${OPENMP_FLAG}")
if(OpenMP_VERBOSE_COMPILE_OPTIONS)
string(APPEND OPENMP_FLAGS_TEST " ${OpenMP_VERBOSE_COMPILE_OPTIONS}")
endif()
string(REGEX REPLACE "[-/=+]" "" OPENMP_PLAIN_FLAG "${OPENMP_FLAG}")
unset(_includeDirFlags)
if(OpenMP_${LANG}_INCLUDE_DIR)
@ -238,8 +228,8 @@ function(_OPENMP_GET_FLAGS LANG FLAG_MODE OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR)
try_compile( OpenMP_COMPILE_RESULT_${FLAG_MODE}_${OPENMP_PLAIN_FLAG}
SOURCE_FROM_VAR "${_OPENMP_TEST_SRC_NAME}" _OPENMP_TEST_SRC_CONTENT
LOG_DESCRIPTION "Detecting ${LANG} OpenMP compiler info"
CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${OPENMP_FLAGS_TEST}" ${_includeDirFlags}
LINK_LIBRARIES ${CMAKE_${LANG}_VERBOSE_FLAG}
CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${OPENMP_FLAG}" ${_includeDirFlags}
LINK_OPTIONS ${OpenMP_VERBOSE_OPTIONS}
OUTPUT_VARIABLE OpenMP_TRY_COMPILE_OUTPUT
)
@ -383,8 +373,6 @@ function(_OPENMP_GET_FLAGS LANG FLAG_MODE OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR)
set("${OPENMP_LIB_NAMES_VAR}" "NOTFOUND" PARENT_SCOPE)
set("${OPENMP_FLAG_VAR}" "NOTFOUND" PARENT_SCOPE)
endforeach()
unset(OpenMP_VERBOSE_COMPILE_OPTIONS)
endfunction()
set(OpenMP_C_CXX_CHECK_VERSION_SOURCE