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Bug 882200

Summary: openchange: libocpf defines "yyin" symbol
Product: Red Hat Enterprise Linux 6 Reporter: Florian Weimer <fweimer>
Component: openchangeAssignee: Matthew Barnes <mbarnes>
Status: CLOSED WONTFIX QA Contact: Desktop QE <desktop-qa-list>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 6.3CC: fweimer, mcrha, tlavigne, tpelka
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-08-27 10:15:58 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 882173, 960054    

Description Florian Weimer 2012-11-30 11:34:46 UTC
/usr/lib64/libocpf.so.0.9 in openchange-0.9-7.el6.x86_64 defines the "yyin" symbol (and other flex-related symbols).  This can lead to collisions and bugs, so the symbols should be mangled or hidden.  I do not see them in the Fedora 18 version, so this might have been fixed upstream.

Comment 2 Matthew Barnes 2012-11-30 13:20:56 UTC
RHEL 6.4 rebases openchange to 1.0.  Can you recheck the rebased package?

Comment 3 Florian Weimer 2012-11-30 13:34:57 UTC
(In reply to comment #2)
> RHEL 6.4 rebases openchange to 1.0.  Can you recheck the rebased package?

I checked openchange-1.0-1.el6.x86_64, and the flex-generated symbols have a ocfp_ prefix, so this is indeed fixed through the rebase.  Thanks.

There are two non-namespaced symbols remaining, "error_flag" and "indent", which should eventually be fixed as well, but the risk of a collision is lower there.  libmapi-openchange defines "Subscribe", "Unsubscribe" (among others), but these appear to be low-risk, too.

Comment 4 RHEL Program Management 2012-12-14 08:19:21 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Comment 7 Florian Weimer 2013-05-21 17:09:10 UTC
The list of conflicting symbols is open-ended in the sense that it depends on what other libraries use.  Symbols starting with "yy" and generic terms such as "buffer", "mutex", "line" are suspicious, though.

I have tools to determine conflicting symbols by looking at entire composes at once.  Apart from the heuristics mentioned above, it is not possible to test a single package in isolation.

Comment 8 Tomas Pelka 2013-05-21 18:43:22 UTC
(In reply to Florian Weimer from comment #7)
> The list of conflicting symbols is open-ended in the sense that it depends
> on what other libraries use.  Symbols starting with "yy" and generic terms
> such as "buffer", "mutex", "line" are suspicious, though.
> 
> I have tools to determine conflicting symbols by looking at entire composes
> at once.  Apart from the heuristics mentioned above, it is not possible to
> test a single package in isolation.

So are you able to run your tool once fixed packages are ready?

Thanks
Tom

Comment 10 RHEL Program Management 2013-08-27 10:15:58 UTC
Development Management has reviewed and declined this request.
You may appeal this decision by reopening this request.