On 05.04.2013 23:35, Julian Taylor wrote:
> On 05.04.2013 23:16, Fernando Perez wrote:
>> On Fri, Apr 5, 2013 at 1:49 PM, Julian Taylor
>> <jtaylor.deb...@googlemail.com> wrote:
>>
>>> strange, it isn't linked against libpng at all. I can't reproduce that
>>> on my Ubuntu machine with git head.
>>>
>>> Do you still have a buildlog?
>>> Maybe do a new build from a clean folder (and save the log).
>>
>> I just did a fully clean rebuild in a fresh clone, and the same thing
>> happens.  Build log here:
>>
>> http://pastebin.com/eCGbEvKb
>>
>> The only thing that jumpts at me is:
>>
>> Package PyCXX was not found in the pkg-config search path.
>> Perhaps you should add the directory containing `PyCXX.pc'
>> to the PKG_CONFIG_PATH environment variable
>> No package 'PyCXX' found
>>
>> which I don't understand, as pycxx is clearly installed:
>>
>> (master)longs[matplotlib]> apt-cache policy python-cxx
>> python-cxx:
>>   Installed: 6.2.4-1
>>   Candidate: 6.2.4-1
>>   Version table:
>>  *** 6.2.4-1 0
>>         500 http://ubuntu.cs.utah.edu/ubuntu/ quantal/universe amd64 Packages
>>         100 /var/lib/dpkg/status
>>
>>
>> Puzzled...
>>
> 
> 
> actually the presence of the PyCXX package seems to be the problem. If I
> have it installed it fails, if not it works. Looks like some weird bug
> in the build system.
> Why is it looking for a pkg-config file? PyCXX does not provide one.
> 
> I though system PyCXX could not be used because it needed unmerged patches?
> Btw. I could merge the patches into the Debian package if they are
> forwarded to me.
> 

I filed an issue:
https://github.com/matplotlib/matplotlib/issues/1884

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