[asterisk-dev] Compiler feature requirements

[Matt Fredrickson]

On Wed, Jan 24, 2018 at 3:50 PM, Corey Farrell <git at cfware.com> wrote:
> I've posted ASTERISK-27619 [1] proposing that we drop support for GCC
> versions older than 4.1.2.  Specifically we'd be requiring that either
> __sync or __atomic builtin functions be available (I'm unsure what this will
> do to clang requirements).  gcc-4.1.2 was released in February 2007 and was
> the version provided by CentOS 5.  I've posted a PR to the jansson project
> [2] which will make reference counting thread safe, but I'm getting
> push-back on the parts needed to provide a replacement function for old
> compilers.  Since reference counting in jansson was never thread safe before
> I think they'd rather just leave it as is for old compilers.
>
> Obviously this proposal is for Asterisk 16+ only.  Does this matter to any
> distributions that will be supported beyond this October?
>
> [1] https://issues.asterisk.org/jira/browse/ASTERISK-27619
> [2] https://github.com/akheron/jansson/pull/389

As long as we don't impact any major, currently supported
distributions that may use earlier versions than gcc-4.1.2, I'm ok
with moving things forward as suggested.  Especially since this is
isolated to master/proposed-16.

Anybody else have any thoughts?

-- 
Matthew Fredrickson
Digium, Inc. | Engineering Manager
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA