Rectify w/ master: CMake version checks and C test

Author: zbeekman

src/tests/unit/extensions/CMakeLists.txt

@@ -4,14 +4,14 @@ endif()
 
 if (CMAKE_VERSION VERSION_GREATER 3.2.3) 
   # Detect Fortran compiler version directly
-  if(gfortran_compiler AND (CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER 4.9.2))
+  if(gfortran_compiler AND (NOT CMAKE_Fortran_COMPILER_VERSION VERSION_LESS 5))
     set(opencoarrays_aware_compiler true)
   else()
     set(opencoarrays_aware_compiler false)
   endif()
 else()
   # Use the C compiler version as a proxy for the Fortran compiler version (won't work with NAG)
-  if(gfortran_compiler AND (CMAKE_C_COMPILER_VERSION VERSION_GREATER 4.9.2))
+  if(gfortran_compiler AND (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 5))
     set(opencoarrays_aware_compiler true)
   else()
     set(opencoarrays_aware_compiler false)

src/tests/unit/simple/CMakeLists.txt

@@ -13,5 +13,5 @@ target_link_libraries(atomics OpenCoarrays)
 
 # C tests
 #include(CMakeForceCompiler)
-#CMAKE_FORCE_C_COMPILER($ENV{CC} GNU)
-add_executable(C_sync_images syncimages2.c ../../../mpi/mpi_caf.c ../../../common/caf_auxiliary.c)
+#CMAKE_FORCE_C_COMPILER(mpicc GNU)
+#add_executable(C_sync_images syncimages2.c ../../../mpi/mpi_caf.c ../../../common/caf_auxiliary.c)