ftjam is make like program construction tool This is "FT-Jam", a simple derivative of the Jam build tool, based on and 100% compatible with Jam 2.5. Jam recursively builds target files from source files, using dependency information and updating actions expressed in the Jambase file, which is written in jam's own interpreted language. The default Jambase is compiled into jam and provides a boilerplate for common use, relying on a user-provide file "Jamfile" to enumerate actual targets and sources.