gentoo-overlay/sys-apps/fakechroot/files/fakechroot-2.14-fix_chk_fail.patch

# This patch fix the availablity of __chk_fail function.
# patch from blueness@gentoo.org

diff -ur fakechroot-2.14.orig//src/__realpath_chk.c fakechroot-2.14/src/__realpath_chk.c
--- fakechroot-2.14.orig//src/__realpath_chk.c	2011-07-04 16:59:16.176441002 +0200
+++ fakechroot-2.14/src/__realpath_chk.c	2011-07-04 17:00:23.718441000 +0200
@@ -24,10 +24,18 @@
 
 #define _FORTIFY_SOURCE 2
 #include <stddef.h>
+#include <stdlib.h>
 #include "libfakechroot.h"
 
 
+#ifdef HAVE___CHK_FAIL
 extern void __chk_fail (void) __attribute__((__noreturn__));
+#else
+__attribute__((__noreturn__)) void __chk_fail (void)
+{
+	exit(-1);
+}
+#endif
 
 wrapper(__realpath_chk, char *, (const char * path, char * resolved, size_t resolvedlen))
 {