commit e9c66ad9fa9f1c1138c2a4868610e1d77271216c
author Mehdi Amini <joker.eph@gmail.com> Thu May 04 17:08:54 2017 +0000
committer Mehdi Amini <joker.eph@gmail.com> Thu May 04 17:08:54 2017 +0000
tree 622d32e491f918b6603f83aabac0930f87f27d1d
parent 93c68e11893e895a3f70b848c4f6589920c1d2e6

Add markup for libc++ dylib availability

Libc++ is used as a system library on macOS and iOS (amongst others). In order
for users to be able to compile a binary that is intended to be deployed to an
older version of the platform, clang provides the
availability attribute <https://clang.llvm.org/docs/AttributeReference.html#availability>_
that can be placed on declarations to describe the lifecycle of a symbol in the
library.

See docs/DesignDocs/AvailabilityMarkup.rst for more information.

Differential Revision: https://reviews.llvm.org/D31739

llvm-svn: 302172