libc/uClibc: portability fixes to install_headers

Add patch files for uClibc-0.9.30:
extra/scripts/install_headers.sh: find must be called with path.
extra/scripts/unifdef.c: getline is declared in <stdio.h>, use different name.

Reported-by: "Guylhem Aznar" <crossgcc@guylhem.net>
Reported-by: "Titus von Boxberg" <titus@v9g.de>
Signed-off-by: "Titus von Boxberg" <titus@v9g.de>

#!/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