From 3c0b976d071dab71df687f371c1de0a1eca60b3c Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <m@mitchellh.com>
Date: Thu, 23 Apr 2026 20:48:23 -0700
Subject: [PATCH] pkg/highway: requires libc headers

---
 pkg/highway/build.zig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkg/highway/build.zig b/pkg/highway/build.zig
index 19b42da50..7f9304d91 100644
--- a/pkg/highway/build.zig
+++ b/pkg/highway/build.zig
@@ -21,6 +21,11 @@ pub fn build(b: *std.Build) !void {
         }),
         .linkage = .static,
     });
+
+    // Our highway package is free of libc at runtime (uses no symbols)
+    // but does require libc headers at compile time.
+    lib.linkLibC();
+
     lib.addIncludePath(b.path("src/cpp"));
     if (upstream_) |upstream| {
         lib.addIncludePath(upstream.path(""));