Re: [matplotlib-devel] png error with git master, is it just me?

[Fernando P. <fpe...@gm...>]

Well, I'm using the system libpng, which is what puzzles me: there should
be no need for me to modify my LD_..., and I haven't done so in the past.
 I'll have to dig into the build tomorrow to figure out exactly what's
going on there...

Will report back.


On Thu, Apr 4, 2013 at 9:24 PM, Damon McDougall
<dam...@gm...>wrote:

>
>
>
> On Thu, Apr 4, 2013 at 10:51 PM, Fernando Perez <fpe...@gm...>wrote:
>
>> Thanks, Damon, for this info.
>>
>> Based on this, I've tested now on another, different system with the same
>> version of linux and can't reproduce it either.  Very odd, but it looks
>> like something is amiss on my end, so let me investigate further before
>> anyone burns further cycles on the issue.
>>
>> Cheers,
>>
>> f
>>
>>
>> On Thu, Apr 4, 2013 at 8:06 PM, Damon McDougall <
>> dam...@gm...> wrote:
>>
>>> On Thu, Apr 4, 2013 at 6:41 PM, Fernando Perez <fpe...@gm...>wrote:
>>>
>>>> Hi folks,
>>>>
>>>> I'm getting the following error from a clean build of master on an
>>>> ubuntu 12.10 machine:
>>>>
>>>> longs[junk]> python -c 'import matplotlib._png'
>>>> Traceback (most recent call last):
>>>>   File "<string>", line 1, in <module>
>>>> ImportError:
>>>> /home/fperez/usr/opt/lib/python2.7/site-packages/matplotlib-1.3.x-py2.7-linux-x86_64.egg/matplotlib/_png.so:
>>>> undefined symbol: png_create_read_struct
>>>>
>>>>
>>>> I hadn't seen anything like this recently, nor can I find similar
>>>> reports, so I'm wondering if anyone knows what's going on, or if it's
>>>> an error on my side.  I can try to bisect it but I figured I'd ask
>>>> first in case it's obvious to someone else...
>>>>
>>>> Cheers,
>>>>
>>>> f
>>>>
>>>
>>> Hi Fernando,
>>>
>>> I can't recreate this on OS X with the current git master branch, which
>>> is at 11e7ed.
>>>
>>> Best wishes,
>>> Damon
>>>
>>> --
>>> Damon McDougall
>>> http://www.damon-is-a-geek.com
>>> Institute for Computational Engineering Sciences
>>> 201 E. 24th St.
>>> Stop C0200
>>> The University of Texas at Austin
>>> Austin, TX 78712-1229
>>>
>>
>>
> Any time, Fernando.
>
> Out of curiosity, is the png_create_read_struct a symbol from libpng?  If
> so, try adding wherever your libpng lives to your LD_LIBRARY_PATH and see
> what happens.
>
> Best wishes,
> Damon
>
> --
> Damon McDougall
> http://www.damon-is-a-geek.com
> Institute for Computational Engineering Sciences
> 201 E. 24th St.
> Stop C0200
> The University of Texas at Austin
> Austin, TX 78712-1229
>