comparing two executable binary files

[Paesch Wayne D DLVA]

Hello,
And Thank You for your time!

I am trying to compare two executable binary files.
There are suppose to be a one byte difference but the hex dump says
differently.

It is built with GCC vers. 2.7.2 , eventually for a power pc.

Is there any way to tell what I am looking at?

I know there is a lot of options during the build process.
I am having a hard time finding out information or documents in this area.

Online can I get to GCC vers. 2.7.2 information?

Thanks again,
Wayne D. Paesch
paeschwd@nswc.navy.mil
(540) 653 5188

NSWC - DD  N93
17230 Dahlgren Road
Dahlgren VA 22448