Lang/elixir shebang interpreter to a shebang

[clément bouvier <clement.bouvier.europe%gmail.com@localhost>]

Hello,

I'm testing the lang/elixir package.
Mix tool is a kind of build tool provided with elixir. It is just a simple shell script with a shebang to an  «  elixir interpreter ».
The problem is the following: 
 « elixir » is not a binary interpreter but just a shell script wrapper (with #!/bin/sh) calling erl , a beam vm (Erlang virtual machine).
mix crashes with "command not found error".

Mainstream uses #!/usr/bin/env elixir in mix.

lang/elixir uses REPLACE_FILES and REPLACE_INTERPRETER in the Makefile to change the pathname to the script interpreter.

REPLACE_INTERPRETER+=   elixir
REPLACE.elixir.old=     .*elixir
REPLACE.elixir.new=     ${PREFIX}/bin/elixir
REPLACE_FILES.elixir=   bin/mix

So the mix command does not work as expected.

I found pkg/51152 with the same kind of « bug ».

What are the options to correct it?

Clément.