diff options
| author | Henry Fredrick Schreiner <henry.fredrick.schreiner@cern.ch> | 2018-03-01 11:35:38 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2018-03-07 13:27:35 (GMT) |
| commit | e3cd7c1e014aa48b72d414104b9c1bd6bc03fd64 (patch) | |
| tree | 5d0dc1c8ee7a9bc9ad7174183456b0c3762ae702 /Modules/FindOpenMP.cmake | |
| parent | b4c539e6511110e893416467a77c36ec7ebef81d (diff) | |
| download | CMake-e3cd7c1e014aa48b72d414104b9c1bd6bc03fd64.zip CMake-e3cd7c1e014aa48b72d414104b9c1bd6bc03fd64.tar.gz CMake-e3cd7c1e014aa48b72d414104b9c1bd6bc03fd64.tar.bz2 | |
FindOpenMP: Add support for AppleClang compiler
This is possible using an external `omp` library and by passing
the flag past the compiler driver via `-Xclang -fopenmp`.
Fixes: #17775
Diffstat (limited to 'Modules/FindOpenMP.cmake')
| -rw-r--r-- | Modules/FindOpenMP.cmake | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Modules/FindOpenMP.cmake b/Modules/FindOpenMP.cmake index 95e5cdc..e252ba5 100644 --- a/Modules/FindOpenMP.cmake +++ b/Modules/FindOpenMP.cmake @@ -85,6 +85,7 @@ function(_OPENMP_FLAG_CANDIDATES LANG) set(OMP_FLAG_GNU "-fopenmp") set(OMP_FLAG_Clang "-fopenmp=libomp" "-fopenmp=libiomp5" "-fopenmp") + set(OMP_FLAG_AppleClang "-Xclang -fopenmp") set(OMP_FLAG_HP "+Oopenmp") if(WIN32) set(OMP_FLAG_Intel "-Qopenmp") @@ -256,6 +257,28 @@ function(_OPENMP_GET_FLAGS LANG FLAG_MODE OPENMP_FLAG_VAR OPENMP_LIB_NAMES_VAR) endif() endif() break() + elseif(CMAKE_${LANG}_COMPILER_ID STREQUAL "AppleClang" + AND CMAKE_${LANG}_COMPILER_VERSION VERSION_GREATER_EQUAL "7.0") + + # Check for separate OpenMP library on AppleClang 7+ + find_library(OpenMP_libomp_LIBRARY + NAMES omp gomp iomp5 + HINTS ${CMAKE_${LANG}_IMPLICIT_LINK_DIRECTORIES} + ) + mark_as_advanced(OpenMP_libomp_LIBRARY) + + if(OpenMP_libomp_LIBRARY) + try_compile( OpenMP_COMPILE_RESULT_${FLAG_MODE}_${OPENMP_PLAIN_FLAG} ${CMAKE_BINARY_DIR} ${_OPENMP_TEST_SRC} + CMAKE_FLAGS "-DCOMPILE_DEFINITIONS:STRING=${OPENMP_FLAGS_TEST}" + LINK_LIBRARIES ${CMAKE_${LANG}_VERBOSE_FLAG} ${OpenMP_libomp_LIBRARY} + OUTPUT_VARIABLE OpenMP_TRY_COMPILE_OUTPUT + ) + if(OpenMP_COMPILE_RESULT_${FLAG_MODE}_${OPENMP_PLAIN_FLAG}) + set("${OPENMP_FLAG_VAR}" "${OPENMP_FLAG}" PARENT_SCOPE) + set("${OPENMP_LIB_NAMES_VAR}" "libomp" PARENT_SCOPE) + break() + endif() + endif() endif() set("${OPENMP_LIB_NAMES_VAR}" "NOTFOUND" PARENT_SCOPE) set("${OPENMP_FLAG_VAR}" "NOTFOUND" PARENT_SCOPE) |