I recently found a very old, very legacy codebase for a game I used to play. When I first downloaded it, it wouldn't compile due to some syntax errors that I believe would not have been syntax errors 10 years ago when the game was active. I made a few code changes and got it compiling, but now it crashes with `Abort trap 6" (a memory error) during some parts of gameplay.

I'm not a C programmer, so I apologize if any of these are really dumb questions!

• This was meant to run on linux hosts 10 years ago (it is a MUD server), and I'm getting it running on OSX. Would it be easier for me to use something like an Ubuntu VM or EC2 instance to make my environment more similar to the initial environment?
• Is there any way to "trick" my gcc into acting like it's 10 years older via flags or options?
• Are there any modern C debugging tools/libraries I might be able to use to help me figure out where the errors are happening? Right now the game shuts down with Abort trap 6 and no stack trace or info at all.

Any help is greatly appreciated!