From 1b45f71c2efb34ab9db46e4da6bfaf24a3cf6935 Mon Sep 17 00:00:00 2001
From: c4710n <c4710n@users.noreply.github.com>
Date: Fri, 1 Dec 2023 10:33:46 +0800
Subject: [PATCH] elixir: enable Erlang compiler option - deterministic

---
 pkgs/development/interpreters/elixir/generic-builder.nix | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/interpreters/elixir/generic-builder.nix b/pkgs/development/interpreters/elixir/generic-builder.nix
index 9007ab12d754..348d054a6c77 100644
--- a/pkgs/development/interpreters/elixir/generic-builder.nix
+++ b/pkgs/development/interpreters/elixir/generic-builder.nix
@@ -20,7 +20,7 @@
 } @ args:
 
 let
-  inherit (lib) getVersion versionAtLeast optional;
+  inherit (lib) getVersion versionAtLeast optional concatStringsSep;
 
 in
 assert versionAtLeast (getVersion erlang) minimumOTPVersion;
@@ -36,7 +36,12 @@ stdenv.mkDerivation ({
   LANG = "C.UTF-8";
   LC_TYPE = "C.UTF-8";
 
-  buildFlags = optional debugInfo "ERL_COMPILER_OPTIONS=debug_info";
+  ERLC_OPTS =
+    let
+      erlc_opts = [ "deterministic" ]
+        ++ optional debugInfo "debug_info";
+    in
+    "[${concatStringsSep "," erlc_opts}]";
 
   preBuild = ''
     patchShebangs ${escriptPath} || true