Merge pull request #107211 from petabyteboy/feature/broadway

gtk3: build with broadway backend

pkgs/development/libraries/gtk/3.x.nix

@@ -43,6 +43,7 @@
 , cups ? null
 , AppKit
 , Cocoa
+, broadwaySupport ? true
 }:
 
 assert cupsSupport -> cups != null;
@@ -87,6 +88,7 @@ stdenv.mkDerivation rec {
     "-Dgtk_doc=${boolToString withGtkDoc}"
     "-Dtests=false"
     "-Dtracker3=${boolToString trackerSupport}"
+    "-Dbroadway_backend=${boolToString broadwaySupport}"
   ];
 
   # These are the defines that'd you'd get with --enable-debug=minimum (default).