From 35683cbb33fcf56be24ed585d6933ee0aadcb6a3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?furby=E2=84=A2?= <devs@wabi.foundation>
Date: Tue, 19 Mar 2024 21:14:05 -0500
Subject: [PATCH] Discover a crazy swift toolchain bug. * It would appear that
 attempting to use moduleAliases on macOS with   the vanilla non-xcode swift
 toolchain, specific to the module aliasing of   the SwiftUI module; even for
 a product that is conditionally removed for   this platform, it causes the
 compiler to suddenly throw:   error: failed to build module 'SwiftUI'; this
 SDK is not supported by the compiler   ---   on top of that, it ballooned the
 build time from what typically takes 29m 11s all   the way up to 1h 44m 58s
 before finally erroring!!!!?!!!?!

---
 Package.swift | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Package.swift b/Package.swift
index 1b9cab58..59e45e9e 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,6 +1,12 @@
 // swift-tools-version: 5.9
 import PackageDescription
 
+#if os(macOS)
+  let crazyToolChainBug: [String: String]? = nil
+#else /* os(macOS) */
+  let crazyToolChainBug: [String: String]? = ["SwiftCrossUI": "SwiftUI"]
+#endif /* !os(macOS) */
+
 let package = Package(
   name: "Kraken",
   platforms: [
@@ -66,7 +72,7 @@ let package = Package(
         .product(
           name: "SwiftCrossUI",
           package: "swift-cross-ui",
-          moduleAliases: ["SwiftCrossUI": "SwiftUI"],
+          moduleAliases: crazyToolChainBug,
           condition: .when(platforms: [.linux, .windows])
         ),
         .product(