From dd95f727ec785ba288fd874fb8b1c3a9b182db95 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <m@mitchellh.com>
Date: Thu, 6 Mar 2025 07:23:00 -0800
Subject: [PATCH] build: add libintl for macOS builds

---
 build.zig.zon             |  1 +
 pkg/libintl/build.zig     | 14 ++++++++++++--
 pkg/libintl/build.zig.zon |  2 ++
 src/build/SharedDeps.zig  | 11 +++++++++++
 4 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/build.zig.zon b/build.zig.zon
index 76142b4aa..4e69cb393 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -63,6 +63,7 @@
         .gtk4_layer_shell = .{ .path = "./pkg/gtk4-layer-shell" },
         .harfbuzz = .{ .path = "./pkg/harfbuzz" },
         .highway = .{ .path = "./pkg/highway" },
+        .libintl = .{ .path = "./pkg/libintl" },
         .libpng = .{ .path = "./pkg/libpng" },
         .macos = .{ .path = "./pkg/macos" },
         .oniguruma = .{ .path = "./pkg/oniguruma" },
diff --git a/pkg/libintl/build.zig b/pkg/libintl/build.zig
index 410587c46..bf2e14150 100644
--- a/pkg/libintl/build.zig
+++ b/pkg/libintl/build.zig
@@ -359,6 +359,12 @@ pub fn build(b: *std.Build) !void {
         lib.addIncludePath(b.path(""));
         lib.addIncludePath(upstream.path("gettext-runtime/intl"));
         lib.addIncludePath(upstream.path("gettext-runtime/intl/gnulib-lib"));
+
+        if (target.result.isDarwin()) {
+            const apple_sdk = @import("apple_sdk");
+            try apple_sdk.addPaths(b, &lib.root_module);
+        }
+
         lib.addConfigHeader(config);
         lib.addCSourceFiles(.{
             .root = upstream.path("gettext-runtime/intl"),
@@ -389,12 +395,16 @@ const srcs: []const []const u8 = &.{
     "localealias.c",
     "log.c",
     "ngettext.c",
-    "osdep.c",
     "plural-exp.c",
     "plural.c",
-    "printf.c",
     "setlocale.c",
     "textdomain.c",
     "version.c",
     "compat.c",
+
+    // Not needed for macOS, but we might need them for other platforms.
+    // If we expand this to support other platforms, we should uncomment
+    // these.
+    // "osdep.c",
+    // "printf.c",
 };
diff --git a/pkg/libintl/build.zig.zon b/pkg/libintl/build.zig.zon
index e5f630726..216bf1bbb 100644
--- a/pkg/libintl/build.zig.zon
+++ b/pkg/libintl/build.zig.zon
@@ -7,5 +7,7 @@
             .url = "https://deps.files.ghostty.org/gettext-0.24.tar.gz",
             .hash = "1220f870c853529233ea64a108acaaa81f8d06d7ff4b66c76930be7d78d508aff7a2",
         },
+
+        .apple_sdk = .{ .path = "../apple-sdk" },
     },
 }
diff --git a/src/build/SharedDeps.zig b/src/build/SharedDeps.zig
index d592aee70..28eb7fa68 100644
--- a/src/build/SharedDeps.zig
+++ b/src/build/SharedDeps.zig
@@ -381,6 +381,17 @@ pub fn add(
         if (self.config.renderer == .opengl) {
             step.linkFramework("OpenGL");
         }
+
+        // Apple platforms do not include libc libintl so we bundle it.
+        // This is LGPL but since our source code is open source we are
+        // in compliance with the LGPL since end users can modify this
+        // build script to replace the bundled libintl with their own.
+        const libintl_dep = b.dependency("libintl", .{
+            .target = target,
+            .optimize = optimize,
+        });
+        step.linkLibrary(libintl_dep.artifact("intl"));
+        try static_libs.append(libintl_dep.artifact("intl").getEmittedBin());
     }
 
     // cimgui