xlib_libXt: add patch to fix cross-compilation issue

Fixes the following build failure:

 http://autobuild.buildroot.org/results/2815885d589d75259508bcce4f272b8dddb3be77/build-end.log

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/x11r7/xlib_libXt/xlib_libXt-0001-util-don-t-link-makestrs-with-target-cflags.patch

@@ -0,0 +1,51 @@
+From 9324466141626518e5a67838813562ec6ef62ba3 Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Thu, 15 Nov 2012 18:31:53 +0100
+Subject: [PATCH] util: don't link makestrs with target cflags
+
+The line:
+
+makestrs_CFLAGS = $(XT_CFLAGS)
+
+in util/Makefile.am is wrong because it adds target cflags to the
+compilation of makestrs, which is built for the build machine, which
+leads to build failures when cross-compiling.
+
+We also remove the inclusion of <X11/Xos.h> from makestrs.c, because
+it was the only non-standard header being included (and therefore
+possibly requiring special cflags), but it was in reality not useful
+at all to build makestrs.c.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ util/Makefile.am |    1 -
+ util/makestrs.c  |    1 -
+ 2 files changed, 2 deletions(-)
+
+diff --git a/util/Makefile.am b/util/Makefile.am
+index 969ecef..cc6f3fc 100644
+--- a/util/Makefile.am
++++ b/util/Makefile.am
+@@ -10,7 +10,6 @@ EXTRA_DIST = \
+ 	StrDefs.ht \
+ 	string.list
+ 
+-makestrs_CFLAGS = $(XT_CFLAGS)
+ makestrs_SOURCES = makestrs.c
+ 
+ 
+diff --git a/util/makestrs.c b/util/makestrs.c
+index 3551cc1..456735b 100644
+--- a/util/makestrs.c
++++ b/util/makestrs.c
+@@ -27,7 +27,6 @@ in this Software without prior written authorization from The Open Group.
+ /* Constructs string definitions */
+ 
+ #include <stdio.h>
+-#include <X11/Xos.h>
+ #include <stdlib.h>
+ #include <unistd.h>
+ #if defined(macII) && !defined(__STDC__)  /* stdlib.h fails to define these */
+-- 
+1.7.9.5
+

package/x11r7/xlib_libXt/xlib_libXt.mk

@@ -10,5 +10,6 @@ XLIB_LIBXT_SITE = http://xorg.freedesktop.org/releases/individual/lib
 XLIB_LIBXT_INSTALL_STAGING = YES
 XLIB_LIBXT_DEPENDENCIES = xlib_libSM xlib_libX11 xproto_kbproto xproto_xproto xcb-proto libxcb host-xproto_xproto
 XLIB_LIBXT_CONF_OPT = --disable-malloc0returnsnull --disable-install-makestrs
+XLIB_LIBXT_AUTORECONF = YES
 
 $(eval $(autotools-package))