From b88d8f63469ca7465f18ffa4f5b718fb55cbd74c Mon Sep 17 00:00:00 2001
From: Eric Fiselier <eric@efcs.ca>
Date: Sat, 18 Jun 2016 18:55:18 +0000
Subject: [PATCH] Add -Wno-covered-switch-default while compiling libc++

fstream has a switch over ios_base::seekdir which provides a defensive default
case. This seems like the right thing for fstream to do, but we need to disable
clangs warning during the build to allow this.

llvm-svn: 273092
---
 libcxx/CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libcxx/CMakeLists.txt b/libcxx/CMakeLists.txt
index 63971313cfe8..c25b48f9f3b6 100644
--- a/libcxx/CMakeLists.txt
+++ b/libcxx/CMakeLists.txt
@@ -310,6 +310,7 @@ add_definitions(-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 add_compile_flags_if_supported(
     -Wall -W -Wwrite-strings
     -Wno-unused-parameter -Wno-long-long -Wno-user-defined-literals
+    -Wno-covered-switch-default
     -Werror=return-type)
 if (LIBCXX_ENABLE_WERROR)
   add_compile_flags_if_supported(-Werror)