Merge pull request #213300 from wegank/wayland-broken-darwin

wayland: mark as broken on darwin

pkgs/development/libraries/wayland/default.nix

···
 , wayland-scanner
 , expat
 , libxml2
-, withLibraries ? stdenv.isLinux
+, withLibraries ? true
 , libffi
 , withDocumentation ? withLibraries && stdenv.hostPlatform == stdenv.buildPlatform
 , graphviz-nox

pkgs/top-level/all-packages.nix

···
 
   memtester = callPackage ../tools/system/memtester { };
 
-  mesa-demos = callPackage ../tools/graphics/mesa-demos { };
+  mesa-demos =
+    let
+      wayland' = wayland.override { withLibraries = stdenv.isLinux; };
+    in
+    callPackage ../tools/graphics/mesa-demos {
+      wayland = wayland';
+      wayland-protocols = wayland-protocols.override {
+        wayland = wayland';
+        wayland-scanner = wayland'.bin;
+      };
+    };
 
   mhonarc = perlPackages.MHonArc;