1 files changed, 73 insertions, 0 deletions
diff --git a/rc3/runtime/cmake/LibompCheckFortranFlag.cmake b/rc3/runtime/cmake/LibompCheckFortranFlag.cmake
new file mode 100644
index 0000000..c37b3ad
--- /dev/null
+++ b/rc3/runtime/cmake/LibompCheckFortranFlag.cmake
@@ -0,0 +1,73 @@
+#
+#//===----------------------------------------------------------------------===//
+#//
+#//                     The LLVM Compiler Infrastructure
+#//
+#// This file is dual licensed under the MIT and the University of Illinois Open
+#// Source Licenses. See LICENSE.txt for details.
+#//
+#//===----------------------------------------------------------------------===//
+#
+
+# Checking a fortran compiler flag
+# There is no real trivial way to do this in CMake, so we implement it here
+# this will have ${boolean} = TRUE if the flag succeeds, otherwise false.
+function(libomp_check_fortran_flag flag boolean)
+  if(NOT DEFINED "${boolean}")
+    set(retval TRUE)
+    set(fortran_source
+"      program hello
+           print *, \"Hello World!\"
+      end program hello")
+
+  set(failed_regexes "[Ee]rror;[Uu]nknown;[Ss]kipping")
+  if(CMAKE_VERSION VERSION_GREATER 3.1 OR CMAKE_VERSION VERSION_EQUAL 3.1)
+    include(CheckFortranSourceCompiles)
+    check_fortran_source_compiles("${fortran_source}" ${boolean} FAIL_REGEX "${failed_regexes}")
+    set(${boolean} ${${boolean}} PARENT_SCOPE)
+    return()
+  else()
+    # Our manual check for cmake versions that don't have CheckFortranSourceCompiles
+    set(base_dir ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/fortran_flag_check)
+    file(MAKE_DIRECTORY ${base_dir})
+    file(WRITE ${base_dir}/fortran_source.f "${fortran_source}")
+
+    message(STATUS "Performing Test ${boolean}")
+    execute_process(
+      COMMAND ${CMAKE_Fortran_COMPILER} "${flag}" ${base_dir}/fortran_source.f
+      WORKING_DIRECTORY ${base_dir}
+      RESULT_VARIABLE exit_code
+      OUTPUT_VARIABLE OUTPUT
+      ERROR_VARIABLE OUTPUT
+    )
+
+    if(${exit_code} EQUAL 0)
+      foreach(regex IN LISTS failed_regexes)
+        if("${OUTPUT}" MATCHES ${regex})
+          set(retval FALSE)
+        endif()
+      endforeach()
+    else()
+      set(retval FALSE)
+    endif()
+
+    if(${retval})
+      set(${boolean} 1 CACHE INTERNAL "Test ${boolean}")
+      message(STATUS "Performing Test ${boolean} - Success")
+      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+        "Performing Fortran Compiler Flag test ${boolean} succeeded with the following output:\n"
+        "${OUTPUT}\n"
+        "Source file was:\n${fortran_source}\n")
+    else()
+      set(${boolean} "" CACHE INTERNAL "Test ${boolean}")
+      message(STATUS "Performing Test ${boolean} - Failed")
+      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+        "Performing Fortran Compiler Flag test ${boolean} failed with the following output:\n"
+        "${OUTPUT}\n"
+        "Source file was:\n${fortran_source}\n")
+    endif()
+  endif()
+
+  set(${boolean} ${retval} PARENT_SCOPE)
+  endif()
+endfunction()