On Tue, 16 Jun 2020 at 07:10, Igor Raits <ignatenkobr...@fedoraproject.org>
wrote:
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> Hash: SHA512
>
> On Tue, 2020-06-16 at 02:21 +0200, Kevin Kofler wrote:
> > Ben Cotton wrote:
> > > == Summary ==
> > > <code>%cmake</code> macro will be adjusted (<code>-B</code>
> > > parameter)
> > > to use separate build folder (already standardized
> > > <code>%{_vpath_builddir}</code> macro). Additionally,
> > > <code>%cmake_build</code>, <code>%cmake_install</code> and
> > > <code>%ctest</code> macro will be created (and backported to the
> > > older
> > > supported Fedora releases) to perform various operations that are
> > > commonly used with CMake in a backend-agnostic (Makefiles, Ninja,
> > > etc.) way.
> > >
> > > Packages that will stop building are trivial to fix and will be
> > > adjusted either by maintainers or change owners.
> > >
> > > == Owner ==
> > > * Name: [[User:ignatenkobrain|Igor Raits]], [[User:besser82|Björn
> > > Esser]], [[User:ngompa|Neal Gompa]]
> > > * Email: ignatenkobr...@fedoraproject.org,
> > > besse...@fedoraproject.org,
> > > ngomp...@gmail.com
> >
> > How does this affect the many packages that already build in a
> > separate
> > build folder manually? There are even several specfile templates that
> > contain the boilerplate for that.
>
> If they assume that builddir will be in `.`, they will break. And we
> will fix them.
>
> To prevent breaking, it is enough to specify `-B .` or setting
> `%{_vpath_builddir}` to `.`.
>
> I've been using CMake very actively for around a month now and I always
assumed that using the `-B` flag to point to a `build` dir is the way to
go. It's even nicely covered in the Modern CMake guide:
https://cliutils.gitlab.io/modern-cmake/
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