diff --git a/pkgs/applications/version-management/gource/default.nix b/pkgs/applications/version-management/gource/default.nix
index 25a85f4b92d7..13852261e863 100644
--- a/pkgs/applications/version-management/gource/default.nix
+++ b/pkgs/applications/version-management/gource/default.nix
@@ -19,8 +19,7 @@ stdenv.mkDerivation rec {
 
   configureFlags = [ "--with-boost-libdir=${boost.out}/lib" ];
 
-  NIX_CFLAGS_COMPILE = "-fpermissive " + # fix build with newer gcc versions
-                       "-std=c++11"; # fix build with glm >= 0.9.6.0
+  enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
     homepage = http://gource.io/;
@@ -36,7 +35,7 @@ stdenv.mkDerivation rec {
       Mercurial and Bazaar and SVN. Gource can also parse logs produced
       by several third party tools for CVS repositories.
     '';
-    platforms = platforms.linux;
+    platforms = platforms.unix;
     maintainers = with maintainers; [ pSub ];
   };
 }