GIF to anything conversion

[Dave Fenske]

I'm looking for a utility which will convert GIF files to something more
usable (to me at least).  Preferred formats would be one of the following:

	CGM, HPGL, PCX, TIFF, X.11

Wherever this program might be, it will eventually compile and run on SCO
Xenix 2.3.2.

Thanks.