FindOpenMP: Keep flags together in imported target usage requirements
If `OpenMP_C_FLAGS` contains `-Xclang -fopenmp`, the flag pair needs to
be preserved as a shell command fragment, and must not be split by
de-duplication with other `target_compile_options`.
Fixes: #24966
diff --git a/Modules/FindOpenMP.cmake b/Modules/FindOpenMP.cmake
index 68be2d6..cd912c3 100644
--- a/Modules/FindOpenMP.cmake
+++ b/Modules/FindOpenMP.cmake
@@ -600,15 +600,13 @@
add_library(OpenMP::OpenMP_${LANG} INTERFACE IMPORTED)
endif()
if(OpenMP_${LANG}_FLAGS)
- separate_arguments(_OpenMP_${LANG}_OPTIONS NATIVE_COMMAND "${OpenMP_${LANG}_FLAGS}")
set_property(TARGET OpenMP::OpenMP_${LANG} PROPERTY
- INTERFACE_COMPILE_OPTIONS "$<$<COMPILE_LANGUAGE:${LANG}>:${_OpenMP_${LANG}_OPTIONS}>")
+ INTERFACE_COMPILE_OPTIONS "$<$<COMPILE_LANGUAGE:${LANG}>:SHELL:${OpenMP_${LANG}_FLAGS}>")
if(CMAKE_${LANG}_COMPILER_ID STREQUAL "Fujitsu"
OR ${CMAKE_${LANG}_COMPILER_ID} STREQUAL "IntelLLVM")
set_property(TARGET OpenMP::OpenMP_${LANG} PROPERTY
- INTERFACE_LINK_OPTIONS "${OpenMP_${LANG}_FLAGS}")
+ INTERFACE_LINK_OPTIONS "SHELL:${OpenMP_${LANG}_FLAGS}")
endif()
- unset(_OpenMP_${LANG}_OPTIONS)
endif()
if(OpenMP_${LANG}_INCLUDE_DIRS)
set_property(TARGET OpenMP::OpenMP_${LANG} PROPERTY
