ERL-310: Enable reproducible builds

[OTP-Maintainer]

Original reporter: hlieberman
Affected version: OTP-20.0
Fixed in version: OTP-20.0
Component: compiler
Migrated from: https://bugs.erlang.org/browse/ERL-310

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Several different groups of people have been asking questions on erlang-questions about working towards reproducible builds.  GUIX, Nix, and Debian have at various times mentioned wanting different features that assist with this.  (Suppressing timestamps, modifying build paths, etc.)

I propose a new flag to erlc, +deterministic, which will withhold the following from being written into BEAM files:
* {makedep_output, _}
* {makedep_target, _}
* {source, _}
* {outdir, _}
* {i, _}

[OTP-Maintainer]

bjorn said:

https://github.com/erlang/otp/pull/1273