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Bug 1606784

Summary: zbar: FTBFS in Fedora rawhide due to wrong python2 call at pygobject-codegen-2.0
Product: [Fedora] Fedora Reporter: Mohan Boddu <mboddu>
Component: pygobject2Assignee: Colin Walters <walters>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: alexl, dougsland, hdegoede, john.j5live, mbarnes, mchehab, mclasen, mr.marcelo.barbosa, negativo17, rhughes, rstrode, sandmann, walters
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Clone Of: Environment:
Last Closed: 2018-08-09 11:31:36 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1585626, 1602938    
Attachments:
Description Flags
build.log
none
root.log
none
state.log
none
Hack to fix zbar build
none
Hack to fix zbar build (v2) none

Description Mohan Boddu 2018-07-20 21:37:06 UTC 
zbar failed to build from source in Fedora rawhide

https://koji.fedoraproject.org/koji/taskinfo?taskID=28241152


For details on the mass rebuild see:

https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
Please fix zbar at your earliest convenience and set the bug's status to
ASSIGNED when you start fixing it. If the bug remains in NEW state for 8 weeks,
zbar will be orphaned. Before branching of Fedora 30,
zbar will be retired, if it still fails to build.

For more details on the FTBFS policy, please visit:
https://fedoraproject.org/wiki/Fails_to_build_from_source
Comment 1 Mohan Boddu 2018-07-20 21:37:20 UTC 
Created attachment 1469233 [details]
build.log
Comment 2 Mohan Boddu 2018-07-20 21:37:25 UTC 
Created attachment 1469234 [details]
root.log

file root.log too big, will only attach last 32768 bytes
Comment 3 Mohan Boddu 2018-07-20 21:37:28 UTC 
Created attachment 1469235 [details]
state.log
Comment 4 Mauro Carvalho Chehab 2018-08-07 20:29:32 UTC 
The bug is actually at the pygobject-codegen-2.0 package. It contains a shell script with the following content:

   #!/bin/sh

   prefix=/usr
   datarootdir=${prefix}/share
   datadir=/usr/share
   codegendir=${datadir}/pygobject/2.0/codegen

   PYTHONPATH=$codegendir
   export PYTHONPATH

   exec /usr/bin/python $codegendir/codegen.py "$@"

Well, after python2 changes, the last line of the script won't do the right thing. That line should be changed to:

   exec /usr/bin/python2 $codegendir/codegen.py "$@"

(or to use /usr/bin/env python2)

As I don't maintain the above package, for now I added a logic that will do:
env $(PYGTK_CODEGEN) |sed s,python,python2, > ./codegen.sh

and then it runs the local script. That should fix the Zbar issue. Yet, the proper fix would be for the pygobject-codegen-2.0 to replace the python call directly there.
Comment 5 Mauro Carvalho Chehab 2018-08-07 20:30:49 UTC 
Created attachment 1474097 [details]
Hack to fix zbar build
Comment 6 Mauro Carvalho Chehab 2018-08-07 20:32:59 UTC 
Created attachment 1474098 [details]
Hack to fix zbar build (v2)
Comment 7 Hans de Goede 2018-08-09 11:31:36 UTC 
This is fixed in pygobject2-2.28.7-4.fc29 and I've done a new zbar build zbar-0.20.1-3.fc29 which drops the hack to work around this, closing.