mplayer: enable strictDeps and structuredAttrs

pkgs/applications/video/mplayer/default.nix

@@ -137,6 +137,9 @@ stdenv.mkDerivation {
   nativeBuildInputs = [
     pkg-config
     yasm
+  ]
+  ++ lib.optionals cacaSupport [
+    libcaca # caca-config
   ];
   buildInputs = [
     freetype
@@ -176,6 +179,8 @@ stdenv.mkDerivation {
   ++ lib.optional bs2bSupport libbs2b
   ++ lib.optional v4lSupport libv4l;
 
+  strictDeps = true;
+
   configurePlatforms = [ ];
   configureFlags = [
     (lib.enableFeature true "freetype")
@@ -278,6 +283,8 @@ stdenv.mkDerivation {
     fi
   '';
 
+  __structuredAttrs = true;
+
   meta = {
     description = "Movie player that supports many video formats";
     homepage = "http://mplayerhq.hu";