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The package you're referring to have only support of python2 interpreters |
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(python2_7 (CPython) and pypy (not the pypy3)). |
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|
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It seems, by default (if neither of PYTHON_SINGLE_TARGET is set), portage |
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tries to do the "magic" (well, in my opinion, it opposes to the Gentoo |
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Philosophy, and it should throw the same error even with "defaults") and |
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automatically chooses the 2_7 single target for it. |
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|
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But when you explicitly specify the targets in make.conf, it obeys and don't |
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do that magic anymore, so condition of "exactly one of supported |
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single_targets (pypy, pyhton2.7)" is not meeting anymore". |
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|
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That's why you getting the error. |
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|
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В письме от суббота, 7 июля 2018 г. 21:31:48 MSK пользователь Andreas Fink |
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написал: |
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> Hello, |
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> I have a question considering PYTHON_SINGLE_TARGET because it seems to |
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> behave inconsistently on my system and I cannot find any documentation |
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> about it, that would guide me in the right direction how to fix it. |
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> Running emerge --info I see the following (I'm on ~amd64): |
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> ... PYTHON_SINGLE_TARGET="python3_5" PYTHON_TARGETS="python2_7 python3_5" |
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> ... |
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> |
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> This output is the default for ~amd64, neither PYTHON_SINGLE_TARGET nor |
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> PYTHON_TARGETS has been set explicitly. |
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> If I do an emerge -av asciidoc, I see the following output: |
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> ebuild R ] app-text/asciidoc-8.6.10::gentoo USE="-examples -graphviz |
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> -highlight {-test}" PYTHON_SINGLE_TARGET="python2_7 -pypy" |
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> PYTHON_TARGETS="python2_7 -pypy" |
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> |
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> Setting PYTHON_SINGLE_TARGET and PYTHON_TARGETS in /etc/portage/make.conf |
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> explicitly to: PYTHON_SINGLE_TARGET="python3_5" |
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> PYTHON_TARGETS="python2_7 python3_5" |
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> |
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> Now emerge --info doesn't show any difference. It's still the same output. |
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> Doing an emerge -av asciidoc I get now this output: |
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> !!! The ebuild selected to satisfy "asciidoc" has unmet requirements. |
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> - app-text/asciidoc-8.6.10::gentoo USE="-examples -graphviz -highlight |
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> -test" ABI_X86="(64)" PYTHON_SINGLE_TARGET="-pypy -python2_7" |
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> PYTHON_TARGETS="python2_7 -pypy" |
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> |
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> The following REQUIRED_USE flag constraints are unsatisfied: |
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> exactly-one-of ( python_single_target_pypy |
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> python_single_target_python2_7 ) |
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> |
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> |
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> This seems for me to be really inconsistent, considering the fact that we |
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> usually request users to provide an emerge --info, which wouldn't show any |
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> difference. |
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> Why am I able to merge in the first case the package, but in the second case |
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> I get an error? I really cannot understand where the |
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> python_single_target_python2_7 is set in the first case. |
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> Anyone who has more insight into that case? |
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> |
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> Cheers |
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> Andreas |
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