Millfork binary distribution contains a copy of the Scala standard library.
The license for Scala is contained at docs/legal/Scala-license.txt

Millfork binary distribution contains a copy of the Apache Configuration library.
The license for it is contained at docs/legal/Apache-license.txt

Millfork binary distribution contains a copy of the Fastparse library.
The license for Fastparse is contained at docs/legal/Fastparse-license.txt