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2010-01-10 19:41:55 Sebastian Pipping napisał(a): |
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> On 01/10/10 09:29, Arfrever Frehtes Taifersar Arahesis wrote: |
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> > I would like to suggest introduction of support for PYTHON_DEPEND variable, which |
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> > would be a better replacement for NEED_PYTHON variable. NEED_PYTHON variable |
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> > does not allow to specify that e.g. only versions of Python 2 are accepted. |
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> > (Eventually PYTHON_DEPEND variable will have to be set only in ebuilds of packages |
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> > not supporting installation for multiple versions of Python.) |
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> > |
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> > Suggested syntax: |
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> > PYTHON_DEPEND="[USE_flag?] <X[:[Y][:[Z]]]> [X[:[Y][:[Z]]]]" |
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> > <required_component>, [optional_component] |
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> > X - Major version of Python ('2' or '3') or '*'. |
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> > Y - Minimal version of Python in the form of ${major_version}.${minor_version}. |
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> > Z - Maximal version of Python in the form of ${major_version}.${minor_version}. |
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> > It will be probably very rarely used. |
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> > |
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> > Examples: |
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> > PYTHON_DEPEND="2" |
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> > Dependency on any version of Python 2. |
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> > |
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> > PYTHON_DEPEND="2:2.5" |
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> > Dependency on Python 2.7, 2.6 or 2.5. |
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> > |
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> > PYTHON_DEPEND="*:2.6" |
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> > Dependency on Python 3.2, 3.1, 3.0, 2.7 or 2.6. |
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> > |
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> > PYTHON_DEPEND="2:2.7 3:3.1" |
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> > Dependency on Python 3.2, 3.1 or 2.7. |
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> > |
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> > PYTHON_DEPEND="2:2.5:2.6" |
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> > Dependency on Python 2.6 or 2.5. |
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> > |
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> > PYTHON_DEPEND="2::2.6" |
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> > Dependency on Python 2.6, 2.5 or 2.4. |
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> > |
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> > PYTHON_DEPEND="python? 2" |
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> > Dependency on any version of Python 2 when "python" USE flag is enabled. |
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> > |
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> |
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> While I don't object improvements or changes on that front at all: |
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> |
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> - How are SUPPORT_PYTHON_ABIS and RESTRICT_PYTHON_ABIS affected |
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> by NEED_PYTHON now and by PYTHON_DEPEND in the future? |
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They aren't and won't be. PYTHON_DEPEND is designed mainly for packages |
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not supporting installation for multiple Python versions. |
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> - The proposed approach doesn't look intuitive to me from a quick |
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> view, sorry: Neither the examples nor the grammar. I didn't give |
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> it that much time to be fair, though. |
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IMHO it's sufficiently intuitive :) . |
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-- |
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Arfrever Frehtes Taifersar Arahesis |
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