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Bug 169251 - revdep-rebuild should be able to detect undefined symbols
Summary: revdep-rebuild should be able to detect undefined symbols
Status: RESOLVED DUPLICATE of bug 162589
Alias: None
Product: Portage Development
Classification: Unclassified
Component: Tools (show other bugs)
Hardware: All All
: High enhancement (vote)
Assignee: Portage Tools Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2007-03-04 09:22 UTC by Remy Oudompheng
Modified: 2010-09-22 11:16 UTC (History)
0 users

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Runtime testing required: ---

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Description Remy Oudompheng 2007-03-04 09:22:45 UTC 
It happens that some packages do not change library name whereas the exported symbols do change, as it happened to me with the last Qt upgrade. I don't know exactly The Right Way to detect that, ldd -r for example issues messages about that on stderr

/usr/bin/djview: Symbol `_ZTV6QFrame' has different size in shared object, consider re-linking
undefined symbol: _ZN7QWidget14icHolderWidgetEv	(/usr/bin/djview)
undefined symbol: _ZN12QApplication20locateICHolderWidgetEP7QWidget	(/usr/bin/djview)
undefined symbol: _ZN12QApplication15icHolderWidgetsEv	(/usr/bin/djview)

How about an option to add checks for that and rebuild the affected packages ?

Reproducible: Always

Steps to Reproduce:
1. emerge some package
2. mess with the symbols of a dependency
3. see how broken has become the former package and revdep-rebuild cannot see that.
Comment 1 Jakub Moc (RETIRED) gentoo-dev 2007-03-04 09:23:14 UTC 
Not portage...
Comment 2 Jakub Moc (RETIRED) gentoo-dev 2007-03-04 09:25:51 UTC 
Feel free to produce a patch that doesn't spit out tons of false positives that are useless and annoying.

*** This bug has been marked as a duplicate of bug 162589 ***
Comment 3 DEMAINE Benoît-Pierre, aka DoubleHP 2010-09-22 11:16:45 UTC 
See bug 338347 . Remy, I agree with you, there is a problem, and it should be fixed at revdep-rebuild level.