We currently have -gcc and -wat switches, however, especially in cross compiling environments, it would be useful to also configure the actual compiler name.
The simplest is probably -cc <name>. I would use this in cases like:
-cc x86_64-w64-mingw32-gcc
-cc i686-w64-mingw32-gcc
This is especially useful for cross translating / compiling stuff that isn't already built by the euphoria development build system.
Actually, I noticed after I posted this that there is a --cc-prefix that takes care of this. I'm marking this as invalid.