elixir: enable Erlang compiler option - deterministic

[c4710n]

Description of changes

This PR is trying to:

• remove all non-deterministic information from Elixir builds:

  • As the Erlang compiler doc said, the deterministic compiler option:

  Omit the options and source tuples in the list returned by Module:module_info(compile), and reduce the paths in stack traces to the module name alone. This option will make it easier to achieve reproducible builds.

  • due to the reproducible nature of Nix, I don't provide an option to disable this.

• improve the way to pass ERL_COMPILER_OPTIONS:

  • if we search ERL_COMPILER_OPTIONS, we will find this line.
  • and, ERLC_OPTS is the standard way to pass Erlang compiler options when building Elixir.
  • above mentioned line has already existed for 4 years, so there shouldn't be any compatibility issues. (The minimum version of Elixir supported by nixpkgs is 1.10, which is released at 2020/01/27)

---

Before this PR:

$ nix build .#legacyPackages.x86_64-darwin.elixir

$ rg "/nix/store/.*/erlang" result --files-with-matches --binary
result/lib/elixir/lib/elixir/ebin/elixir_parser.beam

# The BEAM file contains a source path to /nix/store/*erlang, which undermines the 
# benefits brought by mix release.
#
# Because, the elixir itself always references to erlang, due to Automatic Runtime 
# Dependencies, Erlang is always included as a runtime dependency.
#
# But, Erlang shouldn't be a runtime dependency when using mix release.

After this PR:

$ nix build .#legacyPackages.x86_64-darwin.elixir

$ rg "/nix/store/.*/erlang" result --files-with-matches --binary
# no more files referencing erlang. ;)

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.05 Release Notes (or backporting 23.05 and 23.11 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

Priorities

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[happysalada]

This looks really good, thank you !

Im leaving this open for a little longer just in case someone wants to have a look at it.

[ankhers]

Looks good. Thank you for this!