CMake: Fix for validation test with older CMakes

Author: zbeekman

CMakeLists.txt

@@ -384,11 +384,15 @@ if ( ENABLE_TESTS )
   endif ()
 
   # Check output for differences
+  if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.14)
+    set( JSON_FORTRAN_COMPARE_FLAG "--ignore-eol")
+  endif()
+
   foreach ( JSON_FILE ${EXPECTED_OUTPUTS} )
     get_filename_component (OUTPUT ${JSON_FILE} NAME )
     add_test ( NAME regression-${OUTPUT}
 	    WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/files"
-	    COMMAND ${CMAKE_COMMAND} -E compare_files --ignore-eol ${OUTPUT} expected-outputs/${OUTPUT} )
+	    COMMAND ${CMAKE_COMMAND} -E compare_files ${JSON_FORTRAN_COMPARE_FLAG} ${OUTPUT} expected-outputs/${OUTPUT} )
     set_property ( TEST regression-${OUTPUT}
 	    APPEND
 	    PROPERTY