From e8aad103263297d41335a27d9d1679a7ab47c08b Mon Sep 17 00:00:00 2001
From: "Jeffrey C. Ollie" <jeff@ocjtech.us>
Date: Thu, 5 Mar 2026 09:26:52 -0600
Subject: [PATCH] windows: avoid the use of wcwidth

---
 src/benchmark/CodepointWidth.zig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/benchmark/CodepointWidth.zig b/src/benchmark/CodepointWidth.zig
index effabb036..30d3f91e7 100644
--- a/src/benchmark/CodepointWidth.zig
+++ b/src/benchmark/CodepointWidth.zig
@@ -6,6 +6,7 @@
 const CodepointWidth = @This();
 
 const std = @import("std");
+const builtin = @import("builtin");
 const assert = std.debug.assert;
 const Allocator = std.mem.Allocator;
 const Benchmark = @import("Benchmark.zig");
@@ -104,6 +105,11 @@ fn stepNoop(ptr: *anyopaque) Benchmark.Error!void {
 extern "c" fn wcwidth(c: u32) c_int;
 
 fn stepWcwidth(ptr: *anyopaque) Benchmark.Error!void {
+    if (comptime builtin.os.tag == .windows) {
+        log.warn("wcwidth is not available on Windows", .{});
+        return;
+    }
+
     const self: *CodepointWidth = @ptrCast(@alignCast(ptr));
 
     const f = self.data_f orelse return;