Index: src/libcfa/startup.h
===================================================================
--- src/libcfa/startup.h	(revision 599511651bb05bbe1e34d9f88513826e4eb437ff)
+++ src/libcfa/startup.h	(revision 74441137df76bf672f5486ec09d701e30feb7404)
@@ -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