Re: sys_siglist[] is causing us trouble again

Thomas Munro <thomas(dot)munro(at)gmail(dot)com> writes:
> On Thu, Jul 16, 2020 at 10:48 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> We haven't changed anything, ergo something changed at the OS level.

> It looks like glibc very recently decided[1] to hide the declaration,
> but we're using a cached configure test result.

Right. So, modulo the mis-cached result, what would happen if we do
nothing is that the back branches would lose the ability to translate
signal numbers to strings on bleeding-edge glibc. I don't think we
want that, so we need to back-patch. Attached is a lightly tested
patch for v11. (This includes 7570df0f3 as well, so that
pgstrsignal.c will be the same in all branches.)

regards, tom lane