Re: pthreads

[Sebastian Cato <seb.cato@...>]

Hello,

This should probably be addressed by the maintainer of the .spec file
for the Lua package on Fedora, and not by Lua itself. system(3) is
after all a standard C library function, and application packages that
depends on the C library shouldn't care what various distributions do
on their platforms.

There is a BUG for it, though no meaningful activity yet:
https://bugzilla.redhat.com/show_bug.cgi?id=1473680

//Sebastian

On Thu, Aug 3, 2017 at 5:48 PM, Tom Callaway <tcallawa@redhat.com> wrote:
> Hi Lua folks,
>
> Recently, a bug came in for Fedora 26 saying that cgit was throwing
> error messages, specifically:
>
> /var/www/cgi-bin/cgit: Relink `/lib64/liblua-5.3.so' with
> `/lib64/libpthread.so.0' for IFUNC symbol `system'
>
> Now, it's worth pointing out that cgit wasn't actually failing at all,
> it was just being noisy in the logs. That said, it seemed like an easy
> fix, but in my experience, those are often the most controversial. :)
>
> I've attached a patch which changes configure.ac to check for pthread
> support, using the ax_pthread.m4 from autoconf-archive. With this patch
> applied to lua-5.3.4, pthreads are detected, cflags and ldflags are set
> correctly, and cgit stops throwing this noise.
>
> If there is a more preferred way to handle use of pthreads here, please
> let me know, as I do not want Fedora to diverge from lua upstream.
>
> Thanks,
>
> ~tom