Patching source package?

["Vladimir Zolotykh" <gsmith@eurocom.od.ua>]

Hi,

I'm rather new to Debian system, so don't blame me too much if you
find my question to be trivial or already explained somewhere. I've
spent reasonable time to find the answer alone and when failed decided
to ask a question which runs thus:

[Using Sarge] I'm using libmotif3 binary package 2.2.3-1. Its "option
menu" is faulty, the window abruptly loses it's focus. Recently I've
been told that this bug is fixed
(http://bugs.motifzone.net/show_bug.cgi?id=1260). But how to use this
patch in Debian like manner? I decided to 1) download the source
package "openmotif", 2) apply the patch to the sources, 3) rebuild the
libmotif3.deb and reinstall it. Here is my problem: dpkg-buildpackage
expects openMotif-2.2.3.tar.gz as a point to start from. It unpacks
it, compiles files and finally builds the libmotif3.deb file. To apply
the patch I have to interfere after unpacking the .tar file but before
the compilation process starts. How I can do that?

Thanks in advance

Vladimir


--
Vladimir Zolotykh