anchor.diff:      sdl
       speex
       v4l_lib
  +    vulkan-headers
       wayland
  +    wayland-protocols
       zlib
     ];
   
     wafFlags = [
  +    ###"--enable-lgpl"
       ###"--enable-cplayer"
       "--enable-libmpv-shared"
       "--disable-libmpv-static"
  
positive.code:   src = fetchzip {
      version = 3;
      url = "https://github.com/mpv-player/mpv/archive/v${version}.tar.gz";
      sha256 = "0d8eebc876f55ee7f72ed49cf2a1dc72604bffb205ad78eb54514da2051f4ca0";
    };
  
    nativeBuildInputs = [
  
negative.code:     "--${boolEn (openal != null)}-openal"
      "--disable-opensles"  # android
      "--${boolEn (alsa-lib != null)}-alsa"
      "--disable-coreaudio"  # macOS
      "--disable-audiounit"  # iOS
      "--disable-wasapi"  # Windows
      "--disable-cocoa"  # macOS
      "--${boolEn (libdrm != null)}-drm"
      "--${boolEn opengl-dummy.gbm}-gbm"
      ###"--${boolEn (wayland != null)}-wayland-scanner"
      ###"--${boolEn (wayland-protocols != null)}-wayland-protocols"
      "--${boolEn (
          wayland != null &&
          wayland-protocols != null &&
          libxkbcommon != null)}-wayland"
      "--${boolEn (
          libx11 != null
          && libxext != null
  