--- include/my_compiler.h.orig	2013-02-27 13:54:45.911522875 +0100
+++ include/my_compiler.h	2013-02-27 13:55:46.164097667 +0100
@@ -38,7 +38,7 @@
 /* Any after 2.95... */
 # define MY_ALIGN_EXT
 /* Comunicate to the compiler the unreachability of the code. */
-# if MY_GNUC_PREREQ(4,5)
+# if MY_GNUC_PREREQ(100,100)
 #   define MY_ASSERT_UNREACHABLE()   __builtin_unreachable()
 # endif
 
