Illegal Instruction 4 on Lion (10.7.5) running from command line

[kennwhite]

When I run the binary from command line, I get:

$ ./arq_restore
Illegal instruction: 4

Doesn't seem to matter whether running as normal user or root. This SO post:
http://stackoverflow.com/questions/10177038/illegal-instruction-4-shows-up-in-os-x-lion
implies there might be a compiler flag for Lion compatibility.
Happy to help debug from this end.

[jaygooby]

I've just recompiled the project on 10.7.5 and arq_restore builds and runs fine, so it's just a matter of doing that. No changes to source needed