[libvirt PATCH 037/351] meson: add readline build option

[Andrea Bolognani]

On Wed, 2020-08-05 at 14:30 +0200, Pavel Hrdina wrote:
> Once we (hopefully) move remaining projects to meson and some of the
> projects would require newer meson we would have to introduce the ugly
> hack into these spec files as well (if there are any).
> 
> After checking what is in the macro file the only drawback is that the
> build-in `%meson` macro has the path to meson defined by `%__meson` so
> my suggestion would not work.
> 
> I wanted to suggest to use rpmbuild --nodeps --load /path/to/marcos.meson
> but PyPi meson doesn't ship that file :/.
> 
> We probably doesn't have any other option than adding the ugly macro
> content into the spec file which I don't like at all.

It makes sense that the path would point to /usr/bin because the
macros are intended to be used with the RPMs, not random versions of
Meson installed from PyPi.

Maybe the most sensible thing to do is just admit that we can't
reasonably build RPMs for libvirt on platforms where Meson itself is
not available as an RPM package.

Users can still take the Fedora package and rebuild it on CentOS if
they're so inclined, and we should be able to get Meson 0.54.0
included in a future CentOS 8 update to minimize the impact of this
problem further, so ultimately we're only losing CentOS 7 coverage
for the RPM build in the long-ish run.

Note that we're currently not building RPMs as part of the CI
pipeline at all :)

-- 
Andrea Bolognani / Red Hat / Virtualization