commit b6e1b31eaf40282048aab4e3071cd1cd77536da3
author Sylvestre Ledru <sylvestre@debian.org> Mon Oct 04 11:06:45 2021 +0200
committer Copybara-Service <copybara-worker@google.com> Mon Oct 04 10:05:30 2021 -0700
tree bfdbc55d68d1183b45cb4969ec7942ee59d4e2dc
parent e75debd0e10bb3c710bf3d9f16907c76dbd0b181

libc++: document in the release notes that a C++20 compiler is expected

Differential Revision: https://reviews.llvm.org/D111043

NOKEYCHECK=True
GitOrigin-RevId: c788bea2435580a2f249bdb011f4cf28dbacfcb9

docs/ReleaseNotes.rst

diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index 65ef26b..da6ede0 100644
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -50,3 +50,10 @@
 -----------
 
 - ...
+
+Build System Changes
+--------------------
+
+- Building the libc++ shared or static library requires a C++ 20 capable compiler.
+  Use ``-DLLVM_ENABLE_PROJECTS='clang;compiler-rt' -DLLVM_ENABLE_RUNTIMES='libcxx;libcxxabi'``
+  to build libc++ using a fresh build of Clang.