How can I set an env variable for a build? Running...

# android-studio

[reactormonk]

How can I set an env variable for a build? Running the build in a shell via SHELL=/bin/bash ./gradlew build works fine, but building inside of android studio fails because I'm using a non-bash shell. I'm building an external program via cmake, and I can't figure out how to insert env variables before cmake, because the cmake invocation fails.