[MacPerl] GD library producing PNG instead of GIF

[Charles Cave <charles@irg.com.au>]

In the course of researching the GD library (to create
images from a MacPerl program) I discovered that the latest
version of GD now produces PNG format and not GIF.

Fortunately for me, MacPerl has the older GD library included,
so produces GIF and not PNG.  Can someone comment on the
porting of this latest version of GD to MacPerl?


From: http://www.boutell.com/gd/

HEY! READ THIS! gd 1.6.3 creates PNG images, not GIF images. 
This is a good thing. PNG is a more compact
format, and full compression is available. Existing code will 
need modification to call gdImagePng instead of gdImageGif. 
Please do not ask us to send you the old GIF version of GD. 
Unisys holds a patent on the LZW compression algorithm, which is 
used in fully compressed GIF images. We are still investigating the
legal issues surrounding various alternative means of producing a 
valid GIF file. 


Charles Cave
budding graphis programmer
charles@irg.com.au

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