Hi again,

I'm trying to build a universal libpng package at the moment  for use  
with matplotlib from pythonmac.org/packages. There's an older version  
up on undefined.org that's referred to in some mailing list postings  
but there've been some major security holes fixed since then, so I've  
been trying to automate the process of building a

gcc complains about the '-M' flag being used with multiple -arch  
flags, and so I've compiled twice and am stitching them together with  
lipo. One thing I'm not sure about is the "libpng12.la" file, which I  
can't seem to combine. I've never been totally clear on the difference  
between .a and .la archives, but there does seem to be one.

Any hints? I will of course post the build script and an URL for the  
package once I'm sure it works.

David
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