These requirements apply to gAnim8 (not the gAnim8 Conversion Tool)

REQUIRED:
Python 2.2 or better
Gtk+ (1.2.8-4 or better is recommended)
PyGTK 0.6.9 or better (with the gdkimlib module)
Python Numeric
PyGnome 1.4.1-1 or better
GdkImlib and Imlib (most Gnome and GTK users probably already have this, Imlib version 1.9.8.1-6 or better is recommended)
Gnome (1.4 or better recommended, you might be able to get away with just the Gnome libs)
Gifsicle (which contains both the 'gifsicle' and 'gifview' executables, version 1.3 or better, either the gifsicle or ungifsicle package
should do)

RECOMMENDED:
The 'mpeg2vidcodec' package  (containing the 'mpeg2decode' and mpeg2encode' binaries - version 1.2-2 or better - required for
Mpeg video support) ImageMagick (containing the 'convert' binary, version 5.2.3+, version 5.4.6.1 or better recommended - adds
support for 110+ image formats)

You can get the latest Gifsicle source code and binary packages (RPM) from  http://www.lcdf.org/gifsicle/

NOTE: This program is built on top of Gifsicle, so you can do nothing with gAnim8 until you get Gifsicle:
http://www.lcdf.org/gifsicle/

There are some RPMS for Gifsicle on  speakeasy.rpmfind.net and http://www.lcdf.org/gifsicle/
The 'mpeg2vidcodec' package can be found on speakeasy.rpmfind.net and at the MJPEG web site.
The ImageMagick package can be found on both speakeasy.rpmfind.net and www.imagemagick.org .