libc/glibc: fix as/ld checks against recent binutils

Backported from:
http://sourceware.org/ml/libc-alpha/2009-09/msg00024.html

Thanks to Khem RAJ for pointing to this fix:
http://sourceware.org/ml/crossgcc/2010-05/msg00033.html

 #!/bin/sh

 # Needed for systems without gettext

 $* -xc -o /dev/null - > /dev/null 2>&1 << EOF

 #include <libintl.h>

 int main()

 {

 	gettext("");

 	return 0;

 }

 EOF

 if [ ! "$?" -eq "0"  ]; then

 	echo -DKBUILD_NO_NLS;

 fi