many ports hit this warning:
../sysdeps/unix/sysv/linux/check_native.c:46: warning: implicit declaration of function 'memset'
../sysdeps/unix/sysv/linux/check_native.c:46: warning: implicit declaration of function 'memset'

snipped from suse

diff -durN glibc-2.12.1.orig/sysdeps/unix/sysv/linux/check_native.c glibc-2.12.1/sysdeps/unix/sysv/linux/check_native.c
--- glibc-2.12.1.orig/sysdeps/unix/sysv/linux/check_native.c	2007-11-24 04:12:17.000000000 +0100
+++ glibc-2.12.1/sysdeps/unix/sysv/linux/check_native.c	2009-11-13 00:50:11.000000000 +0100
@@ -23,6 +23,7 @@
 #include <stddef.h>
 #include <stdint.h>
 #include <stdlib.h>
+#include <string.h>
 #include <time.h>
 #include <unistd.h>
 #include <net/if.h>