Fix some more Hydra evaluation errors

pkgs/applications/audio/mopidy/default.nix

@@ -39,5 +39,6 @@ pythonPackages.buildPythonPackage rec {
       local hard drive.
     '';
     maintainers = [ stdenv.lib.maintainers.rickynils ];
+    platforms = [];
   };
 }

pkgs/applications/graphics/jbrout/default.nix

@@ -34,5 +34,6 @@ buildPythonPackage {
   meta = {
     homepage = "http://code.google.com/p/jbrout";
     description = "jBrout is a photo manager";
+    platforms = stdenv.lib.platforms.linux;
   };
 }

pkgs/development/arduino/ino/default.nix

@@ -29,11 +29,12 @@ buildPythonPackage rec {
       --replace "self.e['avrdude']" "'${avrdude}/bin/avrdude'" \
       --replace "'-C', self.e['avrdude.conf']," ""
   '';
- 
+
   meta = {
     description = "Command line toolkit for working with Arduino hardware";
     homepage = http://inotool.org/;
     license = stdenv.lib.licenses.mit;
     maintainers = with stdenv.lib.maintainers; [ antono the-kenny ];
+    platforms = stdenv.lib.platforms.linux;
   };
 }

pkgs/development/libraries/haskell/accelerate-fft/default.nix

@@ -9,6 +9,6 @@ cabal.mkDerivation (self: {
     homepage = "https://github.com/AccelerateHS/accelerate-fft";
     description = "FFT using the Accelerate library";
     license = self.stdenv.lib.licenses.bsd3;
-    platforms = self.ghc.meta.platforms;
+    platforms = self.stdenv.lib.platforms.linux;
   };
 })

pkgs/development/libraries/haskell/cufft/default.nix

@@ -10,6 +10,6 @@ cabal.mkDerivation (self: {
     homepage = "http://github.com/robeverest/cufft";
     description = "Haskell bindings for the CUFFT library";
     license = self.stdenv.lib.licenses.bsd3;
-    platforms = self.ghc.meta.platforms;
+    platforms = self.stdenv.lib.platforms.linux;
   };
 })

pkgs/development/libraries/v8/default.nix

@@ -56,7 +56,7 @@ stdenv.mkDerivation {
 
     meta = with stdenv.lib; {
       description = "V8 is Google's open source JavaScript engine";
-      platforms = platforms.unix; 
+      platforms = platforms.linux ++ platforms.darwin;
       license = licenses.bsd3;
     };
 }

pkgs/development/tools/build-managers/leiningen/default.nix

@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
     homepage = http://leiningen.org/;
     description = "Project automation for Clojure";
     license = "EPL";
-    platforms = stdenv.lib.platforms.unix;
+    platforms = stdenv.lib.platforms.linux;
     maintainer = with stdenv.lib.maintainers; [ the-kenny ];
   };
 }

pkgs/development/tools/casperjs/default.nix

@@ -41,6 +41,6 @@ stdenv.mkDerivation rec {
     license = stdenv.lib.licenses.mit;
 
     maintainers = [ stdenv.lib.maintainers.bluescreen303 ];
-    platforms = stdenv.lib.platforms.all;
+    platforms = stdenv.lib.platforms.linux;
   };
 }

pkgs/servers/mpd/default.nix

@@ -34,8 +34,8 @@ in stdenv.mkDerivation rec {
   };
 
   buildInputs = [ pkgconfig glib ]
-    ++ opt (!stdenv.isDarwin) systemd
-    ++ opt (!stdenv.isDarwin && alsaSupport) alsaLib
+    ++ opt stdenv.isLinux systemd
+    ++ opt (stdenv.isLinux && alsaSupport) alsaLib
     ++ opt flacSupport flac
     ++ opt vorbisSupport libvorbis
     # using libmad to decode mp3 files on darwin is causing a segfault -- there
@@ -81,7 +81,7 @@ in stdenv.mkDerivation rec {
       (mkFlag mpg123Support "mpg123")
       (mkFlag aacSupport "aac")
       "--enable-debugging" ]
-    ++ opt (!stdenv.isDarwin)
+    ++ opt stdenv.isLinux
       "--with-systemdsystemunitdir=$(out)/etc/systemd/system";
 
   NIX_LDFLAGS = ''