openmw: ffmpeg_3 -> ffmpeg

pkgs/games/openmw/default.nix

@@ -1,5 +1,18 @@
-{ lib, stdenv, fetchFromGitHub, qtbase, openscenegraph, mygui, bullet, ffmpeg_3
-, boost, cmake, SDL2, unshield, openal, libXt, pkg-config }:
+{ lib
+, mkDerivation
+, fetchFromGitHub
+, cmake
+, pkg-config
+, openscenegraph
+, mygui
+, bullet
+, ffmpeg
+, boost
+, SDL2
+, unshield
+, openal
+, libXt
+}:
 
 let
   openscenegraph_ = openscenegraph.overrideDerivation (self: {
@@ -11,9 +24,9 @@ let
       sha256 = "0d74hijzmj82nx3jkv5qmr3pkgvplra0b8fbjx1y3vmzxamb0axd";
     };
   });
-in
 
-stdenv.mkDerivation rec {
+in
+mkDerivation rec {
   version = "0.46.0";
   pname = "openmw";
 
@@ -25,10 +38,23 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ cmake pkg-config ];
-  buildInputs = [ boost ffmpeg_3 bullet mygui openscenegraph_ SDL2 unshield openal libXt qtbase ];
+
+  buildInputs = [
+    SDL2
+    boost
+    bullet
+    ffmpeg
+    libXt
+    mygui
+    openal
+    openscenegraph_
+    unshield
+  ];
 
   cmakeFlags = [
     "-DDESIRED_QT_VERSION:INT=5"
+    # as of 0.46, openmw is broken with GLVND
+    "-DOpenGL_GL_PREFERENCE=LEGACY"
   ];
 
   dontWrapQtApps = true;
@@ -37,7 +63,7 @@ stdenv.mkDerivation rec {
     description = "An unofficial open source engine reimplementation of the game Morrowind";
     homepage = "http://openmw.org";
     license = licenses.gpl3Plus;
-    platforms = platforms.linux;
     maintainers = with maintainers; [ abbradar ];
+    platforms = platforms.linux;
   };
 }