pkg/apple-sdk: detect apple sdk based on target

pkg/apple-sdk/build.zig

@@ -9,7 +9,7 @@ pub fn build(b: *std.Build) !void {
 
 pub fn addPaths(b: *std.Build, m: *std.Build.Module) !void {
     // The active SDK we want to use
-    const sdk = "MacOSX14.sdk";
+    const sdk = try SDK.fromTarget(m.resolved_target.?.result);
 
     // Get the path to our active Xcode installation. If this fails then
     // the zig build will fail.
@@ -19,22 +19,30 @@ pub fn addPaths(b: *std.Build, m: *std.Build.Module) !void {
         " \r\n",
     );
 
-    m.addSystemFrameworkPath(.{
+    // Base path
-        .cwd_relative = b.pathJoin(&.{
+    const base = b.fmt("{s}/Platforms/{s}.platform/Developer/SDKs/{s}{s}.sdk", .{
         path,
-            "Platforms/MacOSX.platform/Developer/SDKs/" ++ sdk ++ "/System/Library/Frameworks",
+        sdk.platform,
-        }),
+        sdk.platform,
-    });
+        sdk.version,
-    m.addSystemIncludePath(.{
-        .cwd_relative = b.pathJoin(&.{
-            path,
-            "Platforms/MacOSX.platform/Developer/SDKs/" ++ sdk ++ "/usr/include",
-        }),
-    });
-    m.addLibraryPath(.{
-        .cwd_relative = b.pathJoin(&.{
-            path,
-            "Platforms/MacOSX.platform/Developer/SDKs/" ++ sdk ++ "/usr/lib",
-        }),
     });
+
+    m.addSystemFrameworkPath(.{ .cwd_relative = b.pathJoin(&.{ base, "/System/Library/Frameworks" }) });
+    m.addSystemIncludePath(.{ .cwd_relative = b.pathJoin(&.{ base, "/usr/include" }) });
+    m.addLibraryPath(.{ .cwd_relative = b.pathJoin(&.{ base, "/usr/lib" }) });
 }
+
+const SDK = struct {
+    platform: []const u8,
+    version: []const u8,
+
+    pub fn fromTarget(target: std.Target) !SDK {
+        return switch (target.os.tag) {
+            .macos => .{ .platform = "MacOSX", .version = "14.2" },
+            else => {
+                std.log.err("unsupported os={}", .{target.os.tag});
+                return error.UnsupportedOS;
+            },
+        };
+    }
+};

pkg/cimgui/build.zig

@@ -5,7 +5,11 @@ pub fn build(b: *std.Build) !void {
     const target = b.standardTargetOptions(.{});
     const optimize = b.standardOptimizeOption(.{});
 
-    const module = b.addModule("cimgui", .{ .root_source_file = .{ .path = "main.zig" } });
+    const module = b.addModule("cimgui", .{
+        .root_source_file = .{ .path = "main.zig" },
+        .target = target,
+        .optimize = optimize,
+    });
 
     const imgui = b.dependency("imgui", .{});
     const freetype = b.dependency("freetype", .{

pkg/harfbuzz/build.zig

@@ -18,6 +18,8 @@ pub fn build(b: *std.Build) !void {
 
     const module = b.addModule("harfbuzz", .{
         .root_source_file = .{ .path = "main.zig" },
+        .target = target,
+        .optimize = optimize,
         .imports = &.{
             .{ .name = "freetype", .module = freetype.module("freetype") },
             .{ .name = "macos", .module = macos.module("macos") },
@@ -59,7 +61,7 @@ pub fn build(b: *std.Build) !void {
         "-DHAVE_FT_DONE_MM_VAR=1",
         "-DHAVE_FT_GET_TRANSFORM=1",
     });
-    if (coretext_enabled) {
+    if (coretext_enabled and target.result.isDarwin()) {
         try flags.appendSlice(&.{"-DHAVE_CORETEXT=1"});
         try apple_sdk.addPaths(b, &lib.root_module);
         try apple_sdk.addPaths(b, module);

pkg/macos/build.zig

@@ -6,7 +6,11 @@ pub fn build(b: *std.Build) !void {
     const target = b.standardTargetOptions(.{});
     const optimize = b.standardOptimizeOption(.{});
 
-    const module = b.addModule("macos", .{ .root_source_file = .{ .path = "main.zig" } });
+    const module = b.addModule("macos", .{
+        .root_source_file = .{ .path = "main.zig" },
+        .target = target,
+        .optimize = optimize,
+    });
 
     const lib = b.addStaticLibrary(.{
         .name = "macos",