El dom, 23-09-2012 a las 13:13 +0200, Michał Górny escribió: > On Sun, 23 Sep 2012 13:03:56 +0200 > Pacho Ramos <pa...@gentoo.org> wrote: > > > El dom, 23-09-2012 a las 12:40 +0200, Michał Górny escribió: > > > On Sun, 23 Sep 2012 12:33:58 +0200 > > > Pacho Ramos <pa...@gentoo.org> wrote: > > > > > > > El dom, 23-09-2012 a las 11:56 +0200, Michał Górny escribió: > > > > > On Sun, 23 Sep 2012 11:07:30 +0200 > > > > > Thomas Sachau <to...@gentoo.org> wrote: > > > > > > > > > > > Matt Turner schrieb: > > > > > > > On Sat, Sep 22, 2012 at 2:24 PM, Michał Górny <mgo...@gentoo.org> > > > > > > > wrote: > > > > > > >> It is a simple eclass using autotools out-of-source builds to > > > > > > >> build > > > > > > >> packages for multiple ABIs when multilib is supported. > > > > > > > > > > > > > > Thanks a lot, Michał! This looks good to me. > > > > > > > > > > > > > >> Use case: xorg packages, ask Matt. > > > > > > > > > > > > > > So the idea is that users want up-to-date 32-bit drivers for > > > > > > > games and > > > > > > > WINE. The emul- packages aren't a very good solution for a number > > > > > > > of > > > > > > > reasons. > > > > > > > > > > > > > > I'd like to add multilib USE flags to Mesa and thus its > > > > > > > dependencies. > > > > > > > I realized that almost everything in x11-libs/ could be converted > > > > > > > very > > > > > > > easily, which would allow us to get rid of emul-linux-x86-xlibs in > > > > > > > addition to emul-linux-x86-opengl. > > > > > > > > > > > > > > > > > > > > > > > > > > This looks like a shortened duplication of a subset of > > > > > > multilib-portage > > > > > > features. While this wont hurt multilib-portage (since it does > > > > > > exclude > > > > > > most actions on ebuilds with USE=multilib), it will mean a rewrite > > > > > > for > > > > > > many ebuilds, which then again need another rewrite (or more likely > > > > > > revert), when multilib-portage is accepted in a future EAPI. > > > > > > > > > > s/when/if/ > > > > > > > > > > > So i would prefer some help/support with multilib-portage to get it > > > > > > accepted sooner, instead of this additional workaround for a subset > > > > > > of > > > > > > packages. > > > > > > > > > > I prefer the simpler solution. > > > > > > > > > > > P.S.: I know, that users, who want up-to-date 32bit drivers for > > > > > > games > > > > > > and wine do use multilib-portage, so we already have a working > > > > > > solution > > > > > > for this issue. > > > > > > > > > > They will no longer have to do that. > > > > > > > > > > > > > I would prefer if eclass way could be extended to packages not using > > > > autotools too, otherwise, we will still need emul packages for, for > > > > example, qt libs. If that would be possible via eclass, maybe > > > > multilib-portage wouldn't be needed but, if not, we will still need it > > > > and, then, would be nice if this inclussion for autotools packages > > > > wouldn't cause more problems to get the "strong" solution land in the > > > > "near" future :/ > > > > > > > > The simpler solution (eclass) looks fine to me, but it would need to be > > > > extended to more packages than autotools based ones to let it replace > > > > portage-multilib/emul packages > > > > > > Qt uses cmake, doesn't it? > > > > > > I don't mind having cmake-multilib as well? We could probably move > > > the foreach_abi() function to some more common eclass, like multilib > > > eclass. > > > > > > > Looks interesting, yes, it uses cmake. I guess we would need to move all > > packages needing 32bits libs to this eclasses. Are you sure wouldn't be > > better to try to go to an "upper" level like Alexis Ballier suggested > > some messages ago?: > > "On Sat, 22 Sep 2012 23:24:46 +0200 > > Michał Górny <mgo...@gentoo.org> wrote: > > > > > It is a simple eclass using autotools out-of-source builds to build > > > packages for multiple ABIs when multilib is supported. > > > > > > > to some extent, can't you do the same by unpacking twice to different > > $S and calling src_prepare/compile/install instead of their > > autotools-utils counterpart with tweaked $S so that it works with almost > > every ebuild ? > > > > -- this really starts to resemble multilib portage :)" > > > > That would be better as there are a ton of ebuilds not inheritting > > autotools-utils.eclass even being autotools based (think for example in > > gnome packages or many others) > > You could fix those ebuilds to inherit it too ;). autotools-utils was > especially designed to use out-of-source builds for multilib > in the future. > > I'm afraid the 'upper level' is technically impossible without either > going into PM itself (which means waiting for EAPI 6 at least > and getting some scary logic into it) or reinventing the phases alike > ruby-ng/python-distutils-ng. Well, the latter may be useful to some > degree; still, it would require each ebuild to redefine all phases. >
Then, I think that main blocker to use autotools-utils.eclass more widely is that it needs at least eapi2, then, I am unsure if all packages currently shipped in emul packages could bump their eapi due compat with old systems.
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