Don't use OpenMP with LLVM Flang before version 17.

OpenMathLib · Aug 5, 2023 · 26f0dc2 · 26f0dc2
1 parent bb0f779
commit 26f0dc2
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -111,6 +111,12 @@ if(NOT NOFORTRAN AND CMAKE_Fortran_COMPILER_ID STREQUAL "LLVMFlang" AND CMAKE_Fo
     message(STATUS "Disabling AVX512 instructions for LLVM Flang before version 17.")
   endif()
   set(NO_AVX512 1)
+
+  # LLVM Flang before version 17 doesn't support necessary OpenMP constructs.
+  if (USE_OPENMP)
+    message(STATUS "Disabling OpenMP for LLVM Flang before version 17.")
+    set(USE_OPENMP 0)
+  endif()
 endif()
 
 include("${PROJECT_SOURCE_DIR}/cmake/utils.cmake")