libui-ng: only build native arch on darwin (#451014)

pkgs/by-name/li/libui-ng/darwin-no-universal.patch

@@ -0,0 +1,13 @@
+--- a/meson.build
++++ b/meson.build
+@@ -72,10 +72,6 @@
+ 	libui_macosx_version_min = '-mmacosx-version-min=10.8'
+ 	add_global_arguments(libui_macosx_version_min, language: libui_darwin_langs)
+ 	add_global_link_arguments(libui_macosx_version_min, language: libui_darwin_langs)
+-
+-	libui_arch = ['-arch', 'x86_64', '-arch', 'arm64']
+-	add_global_arguments(libui_arch, language: libui_darwin_langs)
+-	add_global_link_arguments(libui_arch, language: libui_darwin_langs)
+ endif
+ 
+ if libui_MSVC

pkgs/by-name/li/libui-ng/package.nix

@@ -21,9 +21,9 @@ stdenv.mkDerivation {
     hash = "sha256-pnfrSPDIvG0tFYQoeMBONATkNRNjY/tJGp9n2I4cN/U=";
   };
 
-  postPatch = lib.optionalString (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) ''
-    substituteInPlace meson.build --replace "'-arch', 'arm64'" ""
-  '';
+  patches = [
+    ./darwin-no-universal.patch
+  ];
 
   nativeBuildInputs = [
     cmocka