[review v2] nptl: Add struct_mutex.h

[Joseph Myers (Code Review)]

Joseph Myers has posted comments on this change.

Change URL: https://gnutoolchain-gerrit.osci.io/r/c/glibc/+/518
......................................................................


Patch Set 2:

On Thu, 14 Nov 2019, Florian Weimer (Code Review) wrote:

The list of compiler extensions required to use glibc headers 
(<https://sourceware.org/glibc/wiki/CCompilerFeatures>) is certainly 
incomplete.  Alignment attributes are used in installed headers on various 
architectures for a range of things beyond just pthreads headers.

It's possible it would be possible to use _Alignas / alignas in some cases 
with suitable language standard versions, subject to any issues with 
bounds on supported alignment with those keywords (see e.g. 
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89357>)


-- 
Gerrit-Project: glibc
Gerrit-Branch: master
Gerrit-Change-Id: I30a22c3e3497805fd6e52994c5925897cffcfe13
Gerrit-Change-Number: 518
Gerrit-PatchSet: 2
Gerrit-Owner: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Gerrit-Reviewer: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Gerrit-Reviewer: Florian Weimer <fweimer@redhat.com>
Gerrit-Comment-Date: Thu, 14 Nov 2019 20:44:19 +0000
Gerrit-HasComments: No
Gerrit-Has-Labels: No
Gerrit-MessageType: comment