Re: standards/44921 (<errno.h> needs updating)

[mgorny%NetBSD.org@localhost]

Synopsis: <errno.h> needs updating

State-Changed-From-To: open->closed
State-Changed-By: mgorny%NetBSD.org@localhost
State-Changed-When: Sun, 08 Mar 2020 23:16:09 +0000
State-Changed-Why:
revision 1.42
date: 2020-03-08 23:09:43 +0100;  author: mgorny;  state: Exp;  lines: +6 -2;  commitid: mY2I5PXzDbHdcEZB;
PR standards/44921: Add errno consts for robust mutexes

Add the two missing errno.h constants: EOWNERDEAD and ENOTRECOVERABLE.
While technically they're used for robust mutexes which we do not
support at the moment, they are listed in POSIX and used by libc++.
While libc++ can be made to build without it, it just locally redefines
the values then, so we may as well define them globally.