Index: src/libcfa/startup.h
===================================================================
--- src/libcfa/startup.h	(revision 707446a4ee2e0e188dd4c8436a1129db08e4e382)
+++ src/libcfa/startup.h	(revision f6744797b8f153d89a59fb9a1d7986bef6e1634c)
@@ -18,4 +18,5 @@
 #define STARTUP_H
 
+#if GCC_VERSION > 50000
 extern "C" {
 	enum {
@@ -26,4 +27,10 @@
 	};
 }
+#else
+#define STARTUP_PRIORITY_CORE       101
+#define STARTUP_PRIORITY_KERNEL     102
+#define STARTUP_PRIORITY_MEMORY     103
+#define STARTUP_PRIORITY_IOSTREAM   104
+#endif
 
 #endif //STARTUP_H