Index: C:/ROS/reactos/cmake/gcc.cmake
===================================================================
--- cmake/gcc.cmake	(revision 63745)
+++ cmake/gcc.cmake	(working copy)
@@ -59,7 +59,7 @@
 else()
     add_compile_flags("-gdwarf-2 -gstrict-dwarf")
     if(NOT CMAKE_C_COMPILER_ID STREQUAL "Clang")
-        add_compile_flags("-femit-struct-debug-detailed=none -feliminate-unused-debug-symbols")
+        add_compile_flags("-femit-struct-debug-detailed=none -feliminate-unused-debug-symbols -fcompare-debug")
     endif()
 endif()