pkgconfig: Update AM_GLIB_GNU_GETTEXT macro

This fixes
  error: m4_copy: won't overwrite defined macro: glib_DEFUN
with glib-2.0 >= 2.48.

(From OE-Core rev: 84b11bce72296d04a0e6bc9f18669284017c3704)

Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/pkgconfig/pkgconfig/0001-glib-gettext.m4-Update-AM_GLIB_GNU_GETTEXT-to-match-.patch

@@ -0,0 +1,41 @@
+From e404e27de77d8b993c4cc87013d707200b3a5547 Mon Sep 17 00:00:00 2001
+From: Jussi Kukkonen <jussi.kukkonen@intel.com>
+Date: Tue, 17 May 2016 13:26:27 +0300
+Subject: [PATCH] glib-gettext.m4: Update AM_GLIB_GNU_GETTEXT to match glib
+
+This avoids
+  error: m4_copy: won't overwrite defined macro: glib_DEFUN
+
+Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
+Upstream-Status: Pending
+
+---
+ glib/m4macros/glib-gettext.m4 | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/glib/m4macros/glib-gettext.m4 b/glib/m4macros/glib-gettext.m4
+index 5217fd8..155b1d8 100644
+--- a/glib/m4macros/glib-gettext.m4
++++ b/glib/m4macros/glib-gettext.m4
+@@ -313,7 +313,7 @@ msgstr ""
+ # on various variables needed by the Makefile.in.in installed by 
+ # glib-gettextize.
+ dnl
+-glib_DEFUN([GLIB_GNU_GETTEXT],
++AU_DEFUN([GLIB_GNU_GETTEXT],
+   [AC_REQUIRE([AC_PROG_CC])dnl
+    
+    GLIB_LC_MESSAGES
+@@ -383,7 +383,8 @@ glib_DEFUN([GLIB_GNU_GETTEXT],
+    rm -f po/POTFILES
+    sed -e "/^#/d" -e "/^\$/d" -e "s,.*,	$posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
+ 	< $srcdir/po/POTFILES.in > po/POTFILES
+-  ])
++  ],
++  [[$0: This macro is deprecated. You should use upstream gettext instead.]])
+ 
+ # AM_GLIB_DEFINE_LOCALEDIR(VARIABLE)
+ # -------------------------------
+-- 
+2.1.4
+

meta/recipes-devtools/pkgconfig/pkgconfig_git.bb

@@ -19,6 +19,7 @@ SRC_URI = "git://anongit.freedesktop.org/pkg-config \
            file://pkg-config-native.in \
            file://fix-glib-configure-libtool-usage.patch \
            file://0001-gdate-Move-warning-pragma-outside-of-function.patch \
+           file://0001-glib-gettext.m4-Update-AM_GLIB_GNU_GETTEXT-to-match-.patch \
            "
 
 S = "${WORKDIR}/git"