Re: Regression tests fail with musl libc because libpq.so can't be loaded

Hi,

On 2024-03-22 08:55:52 +0100, Wolfgang Walther wrote:
> Andres Freund:
> > FWIW, independent of which fix we go with, I think we need a buildfarm animal
> > using musl. Even better if one of the CI tasks can be made to use musl as
> > well.
>
> I am already working with Andrew to set up a buildfarm animal to run Alpine
> Linux/musl. I can look into the CI task as well. Are you suggesting to
> change an existing task to run with Alpine/musl or to add a new task for it?
> It would be docker image based for sure.

I'd rather adapt one of the existing tasks, to avoid increasing CI costs
unduly.

The way we currently run CI for testing of not-yet-merged patches runs
all tasks other than macos as full VMs, that turned out to be faster &
cheaper.

FWIW, except for one small issue, building postgres against musl works on
debian and the tests pass if I install first.

The small problem mentioned above is that on debian linux/fs.h isn't available
when building with musl, which in turn causes src/bin/pg_upgrade/file.c to
fail to compile. I assume that's not the case on "fully musl" distro?

Greetings,

Andres Freund