pkg/harfbuzz needs to use apple sdk for coretext

pkg/harfbuzz/build.zig

@@ -1,4 +1,5 @@
 const std = @import("std");
+const apple_sdk = @import("apple_sdk");
 
 pub fn build(b: *std.Build) !void {
     const target = b.standardTargetOptions(.{});
@@ -42,7 +43,11 @@ pub fn build(b: *std.Build) !void {
         "-DHAVE_FT_DONE_MM_VAR=1",
         "-DHAVE_FT_GET_TRANSFORM=1",
     });
-    if (coretext_enabled) try flags.appendSlice(&.{"-DHAVE_CORETEXT=1"});
+    if (coretext_enabled) {
+        try flags.appendSlice(&.{"-DHAVE_CORETEXT=1"});
+        try apple_sdk.addPaths(b, lib);
+        lib.linkFramework("ApplicationServices");
+    }
 
     lib.addCSourceFile(.{
         .file = .{ .path = upstream_root ++ "/src/harfbuzz.cc" },

pkg/harfbuzz/build.zig.zon

@@ -3,5 +3,6 @@
     .version = "2.13.2",
     .dependencies = .{
         .freetype = .{ .path = "../freetype" },
+        .apple_sdk = .{ .path = "../apple-sdk" },
     },
 }