From ef5f8bd7c62f929b5cc210caa816ce4a8c8f8538 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Sun, 12 Mar 2023 00:38:01 -0700
Subject: [PATCH] getExternalExecutor: fix aarch64 windows

std.zig.system.NativeTargetInfo.getExternalExecutor previously would
incorrectly communicate that wine could be used to run aarch64-windows
binaries on x86_64-linux, and x86_64-windows binaries on aarch64-linux.
Neither of these things are true.
---
 lib/std/zig/system/NativeTargetInfo.zig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/std/zig/system/NativeTargetInfo.zig b/lib/std/zig/system/NativeTargetInfo.zig
index dbbebb43c9..987358ed5a 100644
--- a/lib/std/zig/system/NativeTargetInfo.zig
+++ b/lib/std/zig/system/NativeTargetInfo.zig
@@ -1090,6 +1090,11 @@ pub fn getExternalExecutor(
     switch (candidate.target.os.tag) {
         .windows => {
             if (options.allow_wine) {
+                // x86_64 wine does not support emulating aarch64-windows and
+                // vice versa.
+                if (candidate.target.cpu.arch != builtin.cpu.arch) {
+                    return bad_result;
+                }
                 switch (candidate.target.cpu.arch.ptrBitWidth()) {
                     32 => return Executor{ .wine = "wine" },
                     64 => return Executor{ .wine = "wine64" },