[Bug 434142] Re: FTBFS with gcc 4.4

[SevenMachines]

this seems to be a problem with including png.h after setjmp.h in the
code 'swigged' from pygpiv.i. Python.h is included first, and it
includes setjmp.h, whereas including gpiv.h then draws in png.h, causing
the error.

#include <Python.h> //includes setjmp.h
#include <gpiv.h>     //includes png.h

Reversing the order of the includes 'solves' the problem. or including png.h before python. 
essentially, you are not allowed to include png.h if setjmp.h has already been included, this is by design apparently

-- 
FTBFS with gcc 4.4
https://bugs.launchpad.net/bugs/434142
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