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From: Matt Turner <mattst88@gentoo.org>
Date: Fri, 15 Nov 2013 12:25:47 -0800
Message-ID: <CAEdQ38GLpxFnw6VvfeiEMtWwZbRiUK-3tHT5dd7JuZVQD_QAFA@mail.gmail.com>
Subject: Re: [gentoo-dev] Please consider removing use.stable.mask and package.use.stable.mask
To: Tom Wijsman <TomWij@gentoo.org>
Cc: gentoo-dev@lists.gentoo.org
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On Fri, Nov 15, 2013 at 12:00 PM, Tom Wijsman <TomWij@gentoo.org> wrote:
> On Thu, 14 Nov 2013 20:56:32 -0800
> Matt Turner <mattst88@gentoo.org> wrote:
>
>> There's a single problem. It can't enable abi_x86_32. Why didn't it
>> just say that?
>
> As per the full output, it does:
>
> !!! Enabling --newuse and --update might solve this conflict.
> !!! If not, it might help emerge to give a more specific suggestion.
>
> That together with ABI_X86="(64) (-32*) (-x32)" from the package line
> makes it clear that it is trying to change that USE flag. But as you
> haven't told emerge yet to do so, it doesn't; which makes it unable.
Imagine I had simply forgotten to unmask the abi_x86_32 USE flag for
kbproto but was attempting to emerge unstable (or unmasked abi_x86_32)
libXt. In fact, if I un-unmask kbproto (so that abi_x86_32 is masked),
unmerge kbproto and attempt to emerge libXt:
dynamic71 mattst88 # emerge libXt -vp
These are the packages that would be merged, in order:
Calculating dependencies... done!
emerge: there are no ebuilds built with USE flags to satisfy
"x11-proto/kbproto[abi_x86_32(-)?,abi_x86_64(-)?,abi_x86_x32(-)?,abi_mips_n32(-)?,abi_mips_n64(-)?,abi_mips_o32(-)?]".
!!! One of the following packages is required to complete your request:
- x11-libs/libXt-1.1.4::gentoo (Change USE: -abi_x86_32)
(dependency required by "x11-libs/libXt-1.1.4" [ebuild])
(dependency required by "libXt" [argument])
It suggests that I turn off abi_x86_32 for libXt rather than telling
me to turn the flag on for kbproto!
Portage prints other things intelligently:
mattst88@dynamic71 ~ % FEATURES=test emerge dev-python/py -vp
These are the packages that would be merged, in order:
Calculating dependencies... done!
[nomerge ] dev-python/py-1.4.13 USE="{test}"
PYTHON_TARGETS="python2_7 python3_2 (-pypy2_0) -python2_6
(-python3_3)"
[ebuild N ] dev-python/pytest-2.3.5 USE="{test} -doc"
PYTHON_TARGETS="python2_7 python3_2 (-pypy2_0) -python2_6
(-python3_3)" 417 kB
[ebuild N ] dev-python/py-1.4.13 USE="{test}"
PYTHON_TARGETS="python2_7 python3_2 (-pypy2_0) -python2_6
(-python3_3)" 185 kB
Total: 2 packages (2 new), Size of downloads: 602 kB
* Error: circular dependencies:
(dev-python/py-1.4.13::gentoo, ebuild scheduled for merge) depends on
(dev-python/pytest-2.3.5::gentoo, ebuild scheduled for merge) (buildtime)
(dev-python/py-1.4.13::gentoo, ebuild scheduled for merge) (buildtime)
It might be possible to break this cycle
by applying the following change:
- dev-python/py-1.4.13 (Change USE: -test)
Note that this change can be reverted, once the package has been installed.