commit 685c470da464e21870b1db21655018bbfe8e3691
author Louis Dionne <ldionne.2@gmail.com> Wed May 18 13:17:14 2022 -0400
committer Copybara-Service <copybara-worker@google.com> Fri May 20 06:41:43 2022 -0700
tree d6cde9f6cad63e21c7b812a34dbeb80f9432e680
parent 7c0c21fff9dfc0472538a6254e1df67036492574

[libc++] Improve error messages for disabled modes

We should not surface CMake-level options like LIBCXX_ENABLE_FILESYSTEM
to our users, since they don't know what it means. Instead, use a slightly
more general wording.

Also, add an error in <ios> to improve the quality of errors for people
trying to use <iostream> when localization is disabled.

Differential Revision: https://reviews.llvm.org/D125910

NOKEYCHECK=True
GitOrigin-RevId: 1c4b31c38b3c36d6e6bbb071ce66abfa52d64c10

include/filesystem

diff --git a/include/filesystem b/include/filesystem
index c23cac9..fd20ec4 100644
--- a/include/filesystem
+++ b/include/filesystem
@@ -261,7 +261,7 @@
 #include <version>
 
 #if defined(_LIBCPP_HAS_NO_FILESYSTEM_LIBRARY)
-# error "The Filesystem library is not supported since libc++ has been configured with LIBCXX_ENABLE_FILESYSTEM disabled"
+# error "The <filesystem> library is not supported since libc++ has been configured without support for a filesystem."
 #endif
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)