Is there a way to specify the shell to use?

[farzadmf]

I'm trying to use OverseerRun to execute a make target. In my shell (which is zsh), I've set up alias make='make -I ...' that's needed for me to run the target.

I have a couple of questions:

• Is there a way to tell overseer to use, say, zsh as its default shell when it tries to run shell commands?
• For the case of make, is there a way to tell overseer not to use the make executable directly and instead pass some arguments to it (I doubt that my existing alias can be used, but if there would be a way to use make -I ... instead of bare make, it would solve my problem)