Not sure how useful this will be, but I've got a patch for the SDL version of VBA 1.7.2 to add cheat support (currently GameBoy/Color only, not Advance, but shouldn't be too hard to extend):

http://forums.ngemu.com/visualboy-advanc...rsion.html

I just heard about VBA-M earlier today, so I'm not sure how useful this is -- they suggested I check here -- but if you have any use for it, free for the taking

Hope this might be useful somehow -- if it is I might try to help with the project if I have enough time -- I don't know much C/C++ so I probably wouldn't be much use with the programming, but maybe at least testing (particularly with Linux stuff).

You might want to check out the SVN at our project page on SourceForge. IIRC, xKiv already added cheat support to the Linux/Mac SDL port of VBA-M.

Just checked out SVN trunk. The new --cheat option certainly makes my life much easier

However, SVN only seems to have added GameBoy Advance cheat support, not i.e. GameBoy Color -- if I forgot to mention my original goal was to use GBC Gameshark codes -- so I've uploaded a new patch that should fix that. This one's a lot shorter -- just four new lines of code -- a lot "cleaner" than the other patch too, since really most of the important bits were already there.

By the way, slightly off-topic but I also had to patch the CMakeLists.txt slightly to build without GTKMM and LIRC -- cmake -DNO_GTK=1 didn't seem to work on my machine -- I can upload the patch for that too if anyone needs it.