* Re: [gentoo-mips] On MIPS using the same CHOST for all multilib ABIs
@ 2013-12-30 9:44 99% ` Michał Górny
0 siblings, 0 replies; 1+ results
From: Michał Górny @ 2013-12-30 9:44 UTC (permalink / raw
To: gentoo-mips; +Cc: vapier, Alexis Ballier, mips, multilib
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Dnia 2013-12-29, o godz. 13:21:21
Mike Frysinger <vapier@gentoo.org> napisał(a):
> we've run into issues in the past where people install a toolchain via
> crossdev that uses the same tuple as the non-default ABI one (e.g. people on
> an amd64 system do `crossdev i686-pc-linux-gnu`) and then the multilib code
> gets confused. but it's been much more of a hassle to try and get configure
> scripts to use compile tests rather than probe the CHOST, so we've just lived
> with this lesser evil.
Out of curiosity, does a dedicated i686 toolchain on a multilib amd64
host have any benefits over the toolchain's -m32 options? Well, except
for not needing the explicit options.
> > > > (1) here is not really a killer feature but I'd rather avoid
> > > > changing this at this point. (2) is actually a killer feature,
> > > > since the eclass sets CHOST properly and thanks to that
> > > > AC_CHECK_TOOL and friends can find multilib *-config progs and
> > > > stuff without any special hackery.
> > >
> > > *-config progs are dead. use pkg-config.
> >
> > ok; but shouldnt we kill that tc-getPKG_CONFIG() which returns
> > $CHOST-pkg-config then ?
>
> i didn't mean specifically use `pkg-config`. packages should be using .pc files
> instead of *-config scripts.
'Should' is far away from reality. I'd rather avoid Gentoo inventing
pkg-config files for random packages where upstream simply refuses to
do that.
Then, there's LLVM. Their llvm-config has some more options than
pkg-config does, and it supports selecting single components. If we're
to do something semi-equal to that, we'd end up with 116 pkg-config
files, plus around 23 for clang. And each new supported target
increases that number by 5-7 files.
Of course, we could put them all in a single file.. but then we're
replacing one crap with another. And forcing the --as-needed hack
on top of it.
--
Best regards,
Michał Górny
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2013-12-28 22:58 [gentoo-mips] On MIPS using the same CHOST for all multilib ABIs Michał Górny
2013-12-29 2:12 ` Mike Frysinger
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2013-12-29 18:21 ` Mike Frysinger
2013-12-30 9:44 99% ` Michał Górny
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