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curmudgeon
Veteran
Joined: 08 Aug 2003
Posts: 1639
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 Posted: Sun Jul 06, 2014 9:31 pm Post subject: more portage behavior I don't understand |
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I recently did emerge -DN system, and afterwards decided to check it with emerge -ep system. One package was missed:
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$ emerge -DN system
These are the packages that would be merged, in order:
Calculating dependencies... done!
Total: 0 packages, Size of downloads: 0 kB
Nothing to merge; quitting.
$ emerge -p file
These are the packages that would be merged, in order:
Calculating dependencies... done!
[ebuild R ] sys-apps/file-5.17 USE="zlib -python -static-libs" PYTHON_TARGETS="python3_3 (-python2_6) -python2_7 -python3_2 (-pypy2_0%)" 0 kB
Total: 1 package (1 reinstall), Size of downloads: 0 kB
$ grep sys-apps/file /usr/portage/profiles/base/packages
*sys-apps/file
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File is indeed a "system" package. Why isn't it being picked up? |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 47118
Location: 56N 3W
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| Posted: Sun Jul 06, 2014 9:45 pm Post subject: |
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curmudgeon,
means nothing has changed.
Its already built without pypy2_0 which is new and forced off, so there is no change to the installed binary.
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NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Ant P.
Watchman
Joined: 18 Apr 2009
Posts: 6877
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| Posted: Sun Jul 06, 2014 9:47 pm Post subject: |
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| Because you asked portage to update packages with changed use flags and that one only changes the number of flags you don't have set. That's what the ()s mean. |
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curmudgeon
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Joined: 08 Aug 2003
Posts: 1639
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| Posted: Mon Jul 07, 2014 3:37 am Post subject: |
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This appears similar (but I do notice that in this case the "-pypy2_0%" has a star at the end. The difference is not clear to me (in practice, at least - I did look up that the asterisk means "transition to or from the enabled state", but I am not sure why there is an asterisk in the example below).
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$ emerge -DNp world
These are the packages that would be merged, in order:
Calculating dependencies... done!
[ebuild R ] dev-lang/python-exec-2.0.1-r1:2 PYTHON_TARGETS="(jython2_5) (jython2_7) (pypy) (python2_6) (python2_7) (python3_2) (python3_3) (-python3_4) (-pypy2_0%*)" 0 kB
Total: 1 package (1 reinstall), Size of downloads: 0 kB
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Ant P.
Watchman
Joined: 18 Apr 2009
Posts: 6877
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| Posted: Mon Jul 07, 2014 6:07 pm Post subject: |
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| (-...%*) means a masked [(...)] flag changed state [*] to being unset [-] because it no longer exists [%] (presumably because that pypy flag replaces it). |
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Yamakuzure
Advocate
Joined: 21 Jun 2006
Posts: 2277
Location: Bardowick, Germany
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| Posted: Tue Jul 08, 2014 10:41 am Post subject: |
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A little hint: | Code: | # man emerge
--verbose [ y | n ] (-v short option)
Tell emerge to run in verbose mode. Currently this flag causes emerge to
print out GNU info errors, if any, and to show the USE flags that will be used
for each package when pretending. The following symbols are affixed to USE
flags in order to indicate their status:
Symbol Location Meaning
──────────────────────────────────────────────────────────────
- prefix not enabled (either disabled or removed)
* suffix transition to or from the enabled state
% suffix newly added or removed
() circumfix forced, masked, or removed
{} circumfix state is bound to FEATURES settings |
I know the man pages of portage, emerge and make.conf are huge, but reading them at least once briefly can save many hours of puzzlement. 
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