[llvm] [gn build] Port 4b0dd87d3a29 (PR #192869)

[Nico Weber via llvm-commits]

https://github.com/nico created https://github.com/llvm/llvm-project/pull/192869

None

>From a9481a094aa9e79cb95bcfa54ba932739abe259b Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis at chromium.org>
Date: Sun, 19 Apr 2026 16:15:27 -0400
Subject: [PATCH] [gn build] Port 4b0dd87d3a29

---
 llvm/utils/gn/secondary/clang/lib/Headers/BUILD.gn | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/utils/gn/secondary/clang/lib/Headers/BUILD.gn b/llvm/utils/gn/secondary/clang/lib/Headers/BUILD.gn
index 660af3befcff3..9b02e64161ba2 100644
--- a/llvm/utils/gn/secondary/clang/lib/Headers/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang/lib/Headers/BUILD.gn
@@ -135,6 +135,7 @@ copy("Headers") {
     "__clang_hip_stdlib.h",
     "__clang_spirv_builtins.h",
     "__clang_spirv_libdevice_declares.h",
+    "__clang_spirv_math.h",
     "__float_float.h",
     "__float_header_macro.h",
     "__float_infinity_nan.h",