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Bug 567982

Summary: dev-python/matplotlib-1.5.0 preserved-rebuild fails after dev-lang/python-3.4.3-r4 update because pygobject has not been recompiled
Product: Gentoo Linux Reporter: Bernardo Costa <bernardofpc>
Component: Current packagesAssignee: Gentoo Linux bug wranglers <bug-wranglers>
Status: RESOLVED DUPLICATE    
Severity: normal    
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
Whiteboard:
Package list:
Runtime testing required: ---
Attachments: Config of compilation setup for matplotlib

Description Bernardo Costa 2015-12-11 09:42:11 UTC
After an upgrade of python, with corresponding python-exec upgrade, emerge suggests to do emerge @preserved-rebuild. All packages I had installed successfully recompiled, except for matplotlib, witch failed with

                        * The following required packages can not be built:
                        * gtk3cairo

After a bit of research, recompiling dev-python/pygobject solved the problem. It is not clear how portage should know about this breakage, but I hope at least people searching for a solution will find this bug report here.

Reproducible: Always

Steps to Reproduce:
1. Upgrade system which includes dev-lang/python, dev-lang/python-exec and matplotlib
2. emerge @preserved-rebuild
Actual Results:  
Recompilation of matplotlib fails
Comment 1 Bernardo Costa 2015-12-11 09:44:47 UTC
Created attachment 418968 [details]
Config of compilation setup for matplotlib
Comment 2 Justin Lecher (RETIRED) gentoo-dev 2015-12-13 10:50:31 UTC

*** This bug has been marked as a duplicate of bug 567884 ***