-#if(enable_compile_warnings AND COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.6")
-# set(warnCFLAGS "${warnCFLAGS} -Wno-error=unused-but-set-variable ")
-#endif(enable_compile_warnings AND COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.6")
+if(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
+ set(warnCFLAGS "${warnCFLAGS} -Wno-error=unused-but-set-variable ")
+endif(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")