From 0865e22567d9b80f72318885f9a9c4128816ed06 Mon Sep 17 00:00:00 2001
From: Robin Gloster <mail@glob.in>
Date: Mon, 29 Aug 2016 08:25:12 +0000
Subject: [PATCH] xorg.xf86videoxgi: add patch to fix build

---
 pkgs/servers/x11/xorg/overrides.nix | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/pkgs/servers/x11/xorg/overrides.nix b/pkgs/servers/x11/xorg/overrides.nix
index 10b0b3ce2ad6..acbfe69ee43b 100644
--- a/pkgs/servers/x11/xorg/overrides.nix
+++ b/pkgs/servers/x11/xorg/overrides.nix
@@ -541,6 +541,17 @@ in
     nativeBuildInputs = [args.autoreconfHook xorg.utilmacros];
   };
 
+  xf86videoxgi = attrs: attrs // {
+    patches = [
+      # fixes invalid open mode
+      # https://cgit.freedesktop.org/xorg/driver/xf86-video-xgi/commit/?id=bd94c475035739b42294477cff108e0c5f15ef67
+      (args.fetchpatch {
+        url = "https://cgit.freedesktop.org/xorg/driver/xf86-video-xgi/patch/?id=bd94c475035739b42294477cff108e0c5f15ef67";
+        sha256 = "0myfry07655adhrpypa9rqigd6rfx57pqagcwibxw7ab3wjay9f6";
+      })
+    ];
+  };
+
   xwd = attrs: attrs // {
     buildInputs = with xorg; attrs.buildInputs ++ [libXt libxkbfile];
   };