glsl_analyzer: fix on x86_64-darwin

Because apple-sdk defaults to 11 on aarch64-darwin, glsl_analyzer builds
fine, but on x86_64-darwin (where apple-sdk defaults to 10.12) it fails
to build. I've bumped the SDK version to be 11 on both platforms, which
fixes the build.

pkgs/by-name/gl/glsl_analyzer/package.nix

@@ -2,6 +2,7 @@
 , stdenv
 , fetchFromGitHub
 , zig_0_13
+, apple-sdk_11
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -19,6 +20,12 @@ stdenv.mkDerivation (finalAttrs: {
     zig_0_13.hook
   ];
 
+  buildInputs = lib.optionals stdenv.hostPlatform.isDarwin [
+    # The package failed to build on x86_64-darwin because the default was the 10.12 SDK
+    # Once the default on all platforms has been raised to the 11.0 SDK or higher, this can be removed.
+    apple-sdk_11
+  ];
+
   postPatch = ''
     substituteInPlace build.zig \
       --replace-fail 'b.run(&.{ "git", "describe", "--tags", "--always" })' '"${finalAttrs.src.rev}"'