PyCairo & LibPNG issues

[Craig Davis <craigwd2000 gmail com>]

I think I may have finally found the root of all my problems.  For some 
odd reason I can't get libpng 1.2.10 to compile on Tiger.  I checked 
config.log & found out that the configure script for libpng is looking 
for two header files that apparently don't exist on my 10.4.6 
installation.  The files in question are malloc.h & ac_nonexistant.h (I 
had a similar issue trying to compile libtools on my "12 PowerBook G4 
due to not having ac_nonexistant.h installed which I needed for 
Aspell).  I'm using a "17 iMac G5 with 512 MB of RAM (two 256 MB DDR 
sticks), 8X SuperDrive, & AirPort Extreme Card with 10.4.6 & the latest 
updates (including a just released Apple security fix package).  As if 
all of this weren't bad enough the configure script failed to find my 
G77 installation which is in /usr/local/lib.  In addition my Python 
2.4.4 failed to compile too.  I ended up installing a Universal Python 
2.4.X Mac OS X package.  Should I still attempt to compile a 
PowerPC-only version from Python's source code?