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Hi Tom, |
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|
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that was really helpful. |
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MANY THANKS, |
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Helmut |
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|
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On 03/28/2014 08:29:27 PM, Tom Wijsman wrote: |
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> On Fri, 28 Mar 2014 11:42:59 +0100 |
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> Helmut Jarausch <jarausch@××××××××××××××××.de> wrote: |
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> |
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> > sys-apps/portage:0 |
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> > |
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> > (sys-apps/portage-9999:0/0::gentoo, ebuild scheduled for merge) |
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> > pulled in by |
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> > sys-apps/portage (Argument) |
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> > |
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> > (sys-apps/portage-9999:0/0::gentoo, installed) pulled in by |
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> > |
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> > sys-apps/portage[**SNIP**] required by |
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> > (app-portage/gentoolkit-dev-0.2.8.3-r1:0/0::gentoo, installed) |
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> > |
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> > sys-apps/portage[**SNIP**] required by |
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> > (app-admin/webapp-config-1.53:0/0::gentoo, installed) |
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> > |
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> > sys-apps/portage[**SNIP**] required by |
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> > (app-portage/flaggie-0.2.1:0/0::gentoo, installed) |
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> |
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> The thing with Python is that it wants 'packages that support Python' |
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> depend on 'Python packages that have the same versions supported'. |
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> |
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> Iotw, from the above example; let's say the reverse dependencies |
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> gentoolkit-dev, webapp-config, flaggie, ... were build with 2.x and |
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> with 3.x, they would want both 2.x and 3.x set on sys-apps/portage. |
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> |
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> If you drop 2.x you can't just rebuild Portage, you'll need to rebuild |
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> the reverse deps as well; such that they no longer want 2.x on |
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> Portage. |
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> |
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> So, when changing PYTHON_TARGET in make.conf; you will want to do |
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> something along the lines of `emerge -auvDN @world --backtrack=9001`, |
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> this to ensure that the reverse dependencies of Portage no longer |
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> depend on Portage having the previously set Python versions. |
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> |
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> Portage will then go ahead and rebuild both Portage and its reverse |
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> dependencies; that way, it doesn't create the conflict you saw. |
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> |
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> (Backtracking 9001 so it is sufficiently high to not cause conflicts) |
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> |
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> -- |
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> With kind regards, |
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> |
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> Tom Wijsman (TomWij) |
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> Gentoo Developer |
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> |
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> E-mail address : TomWij@g.o |
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> GPG Public Key : 6D34E57D |
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> GPG Fingerprint : C165 AF18 AB4C 400B C3D2 ABF0 95B2 1FCD 6D34 E57D |
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> |
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> |
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> |
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