mumble: enable parallel building

+2
+2
pkgs/applications/networking/mumble/default.nix
··· 54 cp man/mum* $out/share/man/man1 55 '' + (overrides.installPhase or ""); 56 57 meta = { 58 description = "Low-latency, high quality voice chat software"; 59 homepage = "http://mumble.sourceforge.net/";
··· 54 cp man/mum* $out/share/man/man1 55 '' + (overrides.installPhase or ""); 56 57 + enableParallelBuilding = true; 58 + 59 meta = { 60 description = "Low-latency, high quality voice chat software"; 61 homepage = "http://mumble.sourceforge.net/";