Added hip-clang options to install script, and openmp/pthread options to CMakeLists.txt

test/CMakeLists.txt

@@ -11,10 +11,11 @@ if(BUILD_TESTS)
   endif()
 
   # OpenMP is used to drive GPUs (one per thread)
-  find_package(OpenMP REQUIRED)
-  set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
-  set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
-  set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS}")
+  if(EXISTS /etc/redhat-release)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fopenmp=libgomp -pthread")
+  else()
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fopenmp -pthread")
+  endif()    
 
   # Download and unpack googletest at configure time
   configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)