From 658398c842019636376a00f7267853e96cd0d935 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Thu, 28 Jan 2021 13:05:10 -0500
Subject: [PATCH] [gn build] (semi-manually) port 081c1db02dd2

---
 llvm/utils/gn/secondary/libcxx/src/BUILD.gn | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/utils/gn/secondary/libcxx/src/BUILD.gn b/llvm/utils/gn/secondary/libcxx/src/BUILD.gn
index 7403ebfddd4c..c98145b6c169 100644
--- a/llvm/utils/gn/secondary/libcxx/src/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/src/BUILD.gn
@@ -122,6 +122,7 @@ cxx_sources = [
   "condition_variable.cpp",
   "condition_variable_destructor.cpp",
   "exception.cpp",
+  "format.cpp",
   "functional.cpp",
   "future.cpp",
   "hash.cpp",