diff --git a/pkgs/development/libraries/SDL_mixer/default.nix b/pkgs/development/libraries/SDL_mixer/default.nix
index 865ddac06be..d328d80d389 100644
--- a/pkgs/development/libraries/SDL_mixer/default.nix
+++ b/pkgs/development/libraries/SDL_mixer/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   configureFlags = [ "--disable-music-ogg-shared" ]
     ++ lib.optional enableNativeMidi " --enable-music-native-midi-gpl"
-    ++ lib.optional stdenv.isDarwin "--disable-sdltest";
+    ++ lib.optionals stdenv.isDarwin [ "--disable-sdltest" "--disable-smpegtest" ];
 
   meta = with stdenv.lib; {
     description = "SDL multi-channel audio mixer library";
diff --git a/pkgs/games/wesnoth/default.nix b/pkgs/games/wesnoth/default.nix
index 66833ceb210..d3128210a1b 100644
--- a/pkgs/games/wesnoth/default.nix
+++ b/pkgs/games/wesnoth/default.nix
@@ -43,6 +43,6 @@ stdenv.mkDerivation rec {
     homepage = http://www.wesnoth.org/;
     license = licenses.gpl2;
     maintainers = with maintainers; [ kkallio abbradar ];
-    platforms = platforms.linux;
+    platforms = platforms.unix;
   };
 }