Propagate OpenMP compiler flags to linker for IntelLLVM

When compiling for offload and in general when OpenMP is enabled while
compiling, it should also be enabled when linking.

Signed-off-by: William R. Dieter <[email protected]>

Modules/FindOpenMP.cmake

@@ -599,7 +599,8 @@ foreach(LANG IN LISTS OpenMP_FINDLIST)
         separate_arguments(_OpenMP_${LANG}_OPTIONS NATIVE_COMMAND "${OpenMP_${LANG}_FLAGS}")
         set_property(TARGET OpenMP::OpenMP_${LANG} PROPERTY
           INTERFACE_COMPILE_OPTIONS "$<$<COMPILE_LANGUAGE:${LANG}>:${_OpenMP_${LANG}_OPTIONS}>")
-        if(CMAKE_${LANG}_COMPILER_ID STREQUAL "Fujitsu")
+        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}")
         endif()