RPM specfiles for commercial packages?

[Kenneth Porter]

--On Friday, October 01, 2004 1:01 PM -0500 Jason L Tibbitts III 
<tibbs at math.uh.edu> wrote:

> So far I've done Matlab R14sp1, Mathematica
> 5, the PGI compiler suite and RealPlayer.  (OK, RealPlayer was already
> an RPM but doing everything in a postinstall script is pretty nasty.)

How do others handle patches? I use Lugaru Epsilon (http://www.lugaru.com/) 
and each patch shows up as a new package that can be applied to any 
previous version within a major version branch. But I don't think there's 
much prereq stuff enforced. And a lot of work is done in %post to set up 
symlinks in /usr/local/bin and install the .info file.