--- glibc-2.3.5/include/features.h.org	2005-02-18 01:08:56.000000000 +0100
+++ glibc-2.3.5/include/features.h	2005-07-26 16:13:22.000000000 +0200
@@ -262,12 +262,14 @@
 # define __USE_REENTRANT	1
 #endif
 
-#if _FORTIFY_SOURCE > 0 && __GNUC_PREREQ (4, 1) && __OPTIMIZE__ > 0
+#if __GNUC_PREREQ (4, 1) && _FORTIFY_SOURCE > 0 && __OPTIMIZE__ > 0
 # if _FORTIFY_SOURCE == 1
 #  define __USE_FORTIFY_LEVEL 1
 # elif _FORTIFY_SOURCE > 1
 #  define __USE_FORTIFY_LEVEL 2
 # endif
+#else
+#  define __USE_FORTIFY_LEVEL 0
 #endif
 
 /* We do support the IEC 559 math functionality, real and complex.  */