pidgin-with-plugins: use symlinkJoin

pkgs/applications/networking/instant-messengers/pidgin/wrapper.nix

@@ -1,24 +1,17 @@
-{ stdenv, buildEnv, pidgin, makeWrapper, plugins }:
+{ stdenv, symlinkJoin, pidgin, makeWrapper, plugins }:
 
 let
 extraArgs = map (x: x.wrapArgs or "") plugins;
-drv = buildEnv {
-  name = "pidgin-with-plugins-" + (builtins.parseDrvName pidgin.name).version;
+in symlinkJoin {
+  name = "pidgin-with-plugins-${pidgin.version}";
 
   paths = [ pidgin ] ++ plugins;
 
+  buildInputs = [ makeWrapper ];
+
   postBuild = ''
-    # TODO: This could be avoided if buildEnv could be forced to create all directories
-    if [ -L $out/bin ]; then
-      rm $out/bin
-      mkdir $out/bin
-      for i in ${pidgin}/bin/*; do
-        ln -s $i $out/bin
-      done
-    fi
     wrapProgram $out/bin/pidgin \
       --suffix-each PURPLE_PLUGIN_PATH ':' "$out/lib/purple-${pidgin.majorVersion} $out/lib/pidgin" \
       ${toString extraArgs}
   '';
-  };
-in stdenv.lib.overrideDerivation drv (x : { buildInputs = x.buildInputs ++ [ makeWrapper ]; })
+}