Fennel is a programming language that brings together the speed, simplicity,
and reach of Lua with the flexibility of a lisp syntax and macro system.

* Full Lua compatibilty: Easily call any Lua function or library from Fennel and vice-versa.
* Zero overhead: Compiled code should be just as or more efficient than hand-written Lua.
* Compile-time macros: Ship compiled code with no runtime dependency on Fennel.
* Embeddable: Fennel is a one-file library as well as an executable. Embed it in other
  programs to support runtime extensibility and interactive development.

Anywhere you can run Lua code, you can run Fennel code.

This require one version of Lua installed (lua, lua52, lua53, luajit):
Default support for all versions of Lua installed before build.
To specify which Lua versions:
  LUAVER="vers"
"vers" must be one or more of "5.1 5.2 5.3 jit" in the right order separated with space 
After installation there are one or more fennel executable files for the
equivalent versions of Lua.

To install compiled binary versions (experimental):
  BINARY=yes

Optional dependency:
* lua-readline
For history completion