Avoid build warnings

Upstream-Status: Pending

Index: git/include/libc-symbols.h
===================================================================
--- git.orig/include/libc-symbols.h	2011-07-05 17:04:41.171219323 -0700
+++ git/include/libc-symbols.h	2011-07-05 22:50:36.851661478 -0700
@@ -48,10 +48,12 @@
 
    */
 
-#include <bits/uClibc_arch_features.h>
-
 /* Enable declarations of GNU extensions, since we are compiling them.  */
 #define _GNU_SOURCE	1
+#define __need_uClibc_config_h
+#include <bits/uClibc_config.h>
+#undef __need_uClibc_config_h
+#include <bits/uClibc_arch_features.h>
 
 /* Prepare for the case that `__builtin_expect' is not available.  */
 #if defined __GNUC__ && __GNUC__ == 2 && __GNUC_MINOR__ < 96