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OpenMP library is not (yet) properly detected for CrayClang. Work around it.

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This commit is contained in:
Axel Kohlmeyer
2024-02-14 13:40:57 -05:00
parent 0591e4a6d4
commit 57321b308f
1 changed files with 15 additions and 0 deletions
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15
cmake/CMakeLists.txt
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@ -439,6 +439,21 @@ if(BUILD_OMP)
target_compile_definitions(lammps PRIVATE -DLAMMPS_OMP_COMPAT=${LAMMPS_OMP_COMPAT_LEVEL})
target_link_libraries(lammps PRIVATE OpenMP::OpenMP_CXX)
target_link_libraries(lmp PRIVATE OpenMP::OpenMP_CXX)
# this hack is required to correctly link with OpenMP support when using CrayClang version 15.0.2
# CrayClang is only directly recognized by version 3.28 and later
if(CMAKE_VERSION VERSION_LESS 3.28)
get_filename_component(_exe "${CMAKE_CXX_COMPILER}" NAME)
if((CMAKE_CXX_COMPILER_ID STREQUAL "Clang") AND (_exe STREQUAL "crayCC"))
set(CMAKE_SHARED_LINKER_FLAGS_${BTYPE} "${CMAKE_SHARED_LINKER_FLAGS_${BTYPE} -fopenmp")
set(CMAKE_STATIC_LINKER_FLAGS_${BTYPE} "${CMAKE_STATIC_LINKER_FLAGS_${BTYPE} -fopenmp")
endif()
else()
if(CMAKE_CXX_COMPILER_ID STREQUAL "CrayClang")
set(CMAKE_SHARED_LINKER_FLAGS_${BTYPE} "${CMAKE_SHARED_LINKER_FLAGS_${BTYPE} -fopenmp")
set(CMAKE_STATIC_LINKER_FLAGS_${BTYPE} "${CMAKE_STATIC_LINKER_FLAGS_${BTYPE} -fopenmp")
endif()
endif()
endif()
# lower C++ standard for fmtlib sources when using Intel classic compiler