lib/52691: Please update libunwind in NetBSD

[wei.liu2%citrix.com@localhost]

>Number:         52691
>Category:       lib
>Synopsis:       Please update libunwind in NetBSD
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Thu Nov 02 16:00:00 +0000 2017
>Originator:     Wei Liu
>Release:        
>Organization:
Citrix
>Environment:
Linux zion 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u2 (2017-06-26) x86_64 GNU/Linux
>Description:
Rumpkernel project, which contains a copy of NetBSD, which contains a copy of libunwind from LLVM, fails to build on Debian Stretch (gcc 6.3) due to:

https://bugs.llvm.org/show_bug.cgi?id=33358

I would like to fix rumpkernel, but first the change in libunwind needs to be in NetBSD.

Please update libunwind in NetBSD.
>How-To-Repeat:
Build rumpkernel on Debian Stretch.
>Fix:
Pull in a new version of libunwind which contains fix for:

https://bugs.llvm.org/show_bug.cgi?id=33358