Erlang

[Leo Famulari]

Erlang 19.0 has recently been released:
http://www.erlang.org/news/105

Version 19.0 includes this desirable change, copied from the README [0]:
"The compiler will no longer put the compilation date and time into BEAM
files.  That means that two BEAM files compiled on the same computer
from the same source code and compilation options will be identical."

While version 19.0 was being prepared by the Erlang maintainers, Pjotr
and I made sure we could build Erlang itself without any pesky
timestamps making the package unreproducible.

I'm happy to present this latest attempt at an Erlang package. It passes
--rounds=2 for me.

It is mostly the same as the package used by Pjotr in his bioinformatics
Guix repository [1]. The differences are:
* This package installs the man pages and COPYRIGHT file.
* The list of licenses was increased based on the COPYRIGHT file.
* I added Pjotr to the list of authors.
* There are cosmetic / formatting changes.

Your comments are welcome :)

[0]
http://erlang.org/download/otp_src_19.0.readme

[1]
https://github.com/genenetwork/guix-bioinformatics/blob/elixir/gn/packages/erlang.scm

0001-gnu-Add-erlang.patch
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