dependency lookup failures

Vincent Danen vdanen at annvix.org
Sun Apr 29 16:10:09 PDT 2007


* Panu Matilainen <pmatilai at laiskiainen.org> [2007-04-28 22:12:31 +0300]:

>> I just saw something interesting:
>>
>> [vdanen at build ~]$ apt-get build-dep subversion-1.4.3-7277avx.src.rpm Reading 
>> Package Lists... Done
>> Building Dependency Tree... Done
>> Selecting lib64python2.4-devel for 'python-devel'
>> E: Build-Depends dependency for subversion-1.4.3-7277avx.src.rpm cannot be 
>> satisfied because no available versions of package neon-devel can satisfy 
>> version requirements
>> [vdanen at build ~]$ apt-get install neon-devel
>> Reading Package Lists... Done
>> Building Dependency Tree... Done
>> Selecting lib64neon0.24-devel for 'neon-devel'
>> The following NEW packages will be installed:
>> lib64neon0.24-devel
>> 0 upgraded, 1 newly installed, 0 removed and 0 not upgraded.
>> Need to get 76.5kB of archives.
>> After unpacking 130kB of additional disk space will be used.
>> Get:1 ftp://build.annvix.ca x86_64/current lib64neon0.24-devel 0.24.7-6638avx 
>> [76.5kB]
>> Fetched 76.5kB in 0s (2224kB/s)       Committing changes...
>> Preparing...                ########################################### 
>> [100%]
>>  1:lib64neon0.24-devel    ########################################### [100%]
>> Done.
>>
>>
>>
>> Why is this happening?  Obviously apt-get is smart enough when called by
>> "install" to know what package to install, but not when called by
>> "build-dep".  Is there a reason for this?  It doesn't happen often, but
>> I've noticed it once or twice.
>
>A long-standing, known issue: build-dep operation isn't very smart when 
>it comes to dependencies on virtual provides (as opposed to direct package 
>names), especially when versions are involved.
>
>That's one item on my neverending apt-rpm todo-list :)

Ahhhh... gotchya.  Ok, as long as it's something that's known, I'll just
work around it.  =)

-- 
Vincent Danen @ http://linsec.ca/
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