If I compile on Mavericks will it work on ALL Macs

[wtfsamcrap]

TITLE. Asks it all.

[iQChange]

Maybe yes, and maybe on Linux (both Mac and Linux programs depends on ASM compability. Check your compiler architecture (x86/x64) and if the other machine architecture == yours, it's ok. But remember: this is *NIX. Don't try to run it on Windows).