minitube: unbreak the build

pkgs/applications/video/minitube/default.nix

@@ -1,4 +1,4 @@
-{ mkDerivation, lib, fetchFromGitHub, phonon, phonon-backend-vlc, qtbase, qmake
+{ mkDerivation, lib, fetchFromGitHub, fetchpatch, phonon, phonon-backend-vlc, qtbase, qmake
 , qtdeclarative, qttools, qtx11extras, mpv
 
 # "Free" key generated by pasqui23
@@ -16,6 +16,12 @@ mkDerivation rec {
     fetchSubmodules = true;
   };
 
+  patches = [
+    # Taken from FreeBSD; already merged upstream in the media submodule
+    # (https://github.com/flaviotordini/media/commit/f6b7020f273e1fc06e6e204fab37a7c8edaa857a)
+    ./lib_media_src_mpv_mpvwidget.patch
+  ];
+
   nativeBuildInputs = [ qmake qttools ];
 
   buildInputs = [ phonon phonon-backend-vlc qtbase qtdeclarative qtx11extras mpv ];

pkgs/applications/video/minitube/lib_media_src_mpv_mpvwidget.patch

@@ -0,0 +1,16 @@
+diff -Nur a/lib/media/src/mpv/mpvwidget.cpp b/lib/media/src/mpv/mpvwidget.cpp
+--- a/lib/media/src/mpv/mpvwidget.cpp
++++ b/lib/media/src/mpv/mpvwidget.cpp
+@@ -30,7 +30,11 @@
+     qDebug() << "initializeGL" << nativeParent;
+     if (nativeParent == nullptr) qFatal("No native parent");
+ 
+-    mpv_opengl_init_params gl_init_params{get_proc_address, this, nullptr};
++    #if MPV_CLIENT_API_VERSION < MPV_MAKE_VERSION(2,0)
++	mpv_opengl_init_params gl_init_params{get_proc_address, this, nullptr};
++    #else
++	mpv_opengl_init_params gl_init_params{get_proc_address, this};
++    #endif
+     mpv_render_param params[]{{MPV_RENDER_PARAM_API_TYPE, (void *)MPV_RENDER_API_TYPE_OPENGL},
+                               {MPV_RENDER_PARAM_OPENGL_INIT_PARAMS, &gl_init_params},
+                               {MPV_RENDER_PARAM_INVALID, nullptr},