From 05eea784a13fad74a841dd1d7c9a7849e33fd0ca Mon Sep 17 00:00:00 2001
From: Mark de Wever <koraq@xs4all.nl>
Date: Wed, 17 Jan 2024 17:27:18 +0100
Subject: [PATCH] CI fixes.

---
 libcxx/utils/libcxx/test/format.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libcxx/utils/libcxx/test/format.py b/libcxx/utils/libcxx/test/format.py
index c605e8796ac54..13175214879c4 100644
--- a/libcxx/utils/libcxx/test/format.py
+++ b/libcxx/utils/libcxx/test/format.py
@@ -171,6 +171,7 @@ def parseScript(test, preamble):
                 "%dbg(MODULE std.compat) %{cxx} %{flags} "
                 f"{compileFlags} "
                 "-Wno-reserved-module-identifier -Wno-reserved-user-defined-literal "
+                "-fmodule-file=std=%T/std.pcm " # The std.compat module imports std.
                 "--precompile -o %T/std.compat.pcm -c %{module}/std.compat.cppm",
             )
             moduleCompileFlags.extend(