Apache Clownfish consists of two parts, the Clownfish compiler “CFC” and the Clownfish runtime.
To build the Clownfish runtime, chdir into the runtime/$LANG subdirectory, where $LANG is your programming language of choice, and follow the instructions in the INSTALL document there.
The Clownfish runtime build requires the Clownfish compiler. Some host language bindings will build it first automaticaly, while others require manual installation of the compiler as a prerequisite.
To build only the Clownfish compiler, chdir into the compiler/$LANG subdirectory, where $LANG is your programming language of choice, and follow the instructions in the INSTALL document there.