From fa0db7481b571eb994450779f76a54850f985ad2 Mon Sep 17 00:00:00 2001
From: Cody Schafer <dev@codyps.com>
Date: Mon, 30 Oct 2017 22:22:20 -0400
Subject: [PATCH] backport fix for missing _GNU_SOURCE to fix DRI_PRIME

---
 ...dd-missing-include-of-config.h-to-define-.patch | 32 ++++++++++++++++++++++
 trunk/PKGBUILD                                     | 13 +++++++--
 2 files changed, 43 insertions(+), 2 deletions(-)
 create mode 100644 trunk/0001-mesa_dri2-Add-missing-include-of-config.h-to-define-.patch

diff --git a/trunk/0001-mesa_dri2-Add-missing-include-of-config.h-to-define-.patch b/trunk/0001-mesa_dri2-Add-missing-include-of-config.h-to-define-.patch
new file mode 100644
index 0000000..d2ce09a
--- /dev/null
+++ b/trunk/0001-mesa_dri2-Add-missing-include-of-config.h-to-define-.patch
@@ -0,0 +1,32 @@
+From 1cda354bdfd0c9ca107293b84b52f4464fdbedcc Mon Sep 17 00:00:00 2001
+From: Rico Tzschichholz <ricotz@ubuntu.com>
+Date: Tue, 1 Sep 2015 10:45:11 +0200
+Subject: [PATCH] mesa_dri2: Add missing include of config.h to define
+ _GNU_SOURCE
+
+Fix build with -Wimplicit-function-declaration while secure_getenv() is
+guarded by __USE_GNU.
+
+Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
+Tested-by: Stefan Dirsch <sndirsch@suse.de>
+---
+ src/mesa_dri2.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/src/mesa_dri2.c b/src/mesa_dri2.c
+index 51e8794..420ccee 100644
+--- a/src/mesa_dri2.c
++++ b/src/mesa_dri2.c
+@@ -33,6 +33,9 @@
+  *   and José Hiram Soltren (jsoltren@nvidia.com)
+  */
+ 
++#ifdef HAVE_CONFIG_H
++#include "config.h"
++#endif
+ 
+ #define NEED_REPLIES
+ #include <X11/Xlibint.h>
+-- 
+2.14.2
+
diff --git a/trunk/PKGBUILD b/trunk/PKGBUILD
index e1cb7f9..44a787a 100644
--- a/trunk/PKGBUILD
+++ b/trunk/PKGBUILD
@@ -9,12 +9,21 @@ arch=(i686 x86_64)
 url='http://cgit.freedesktop.org/~aplattner/libvdpau'
 depends=('gcc-libs' 'libxext')
 license=('custom')
-source=(http://people.freedesktop.org/~aplattner/vdpau/${pkgname}-${pkgver}.tar.bz2{,.sig})
+source=(
+	http://people.freedesktop.org/~aplattner/vdpau/${pkgname}-${pkgver}.tar.bz2{,.sig}
+	0001-mesa_dri2-Add-missing-include-of-config.h-to-define-.patch
+)
 makedepends=('dri2proto')
 sha256sums=('857a01932609225b9a3a5bf222b85e39b55c08787d0ad427dbd9ec033d58d736'
-            'SKIP')
+            'SKIP'
+            '3e0b8498ddd5c5d2918908de323ca87cdb6386e37ee32a22f57d066afa1e6b35')
 validpgpkeys=('BD68A042C603DDAD9AA354B0F56ACC8F09BA9635') # Aaron Plattner
 
+prepare() {
+  cd "${srcdir}/${pkgname}-${pkgver}"
+  patch -p1 <../0001-mesa_dri2-Add-missing-include-of-config.h-to-define-.patch
+}
+
 build() {
   cd "${srcdir}/${pkgname}-${pkgver}"
   ./configure --prefix=/usr --sysconfdir=/etc
-- 
2.14.2