From 3426c88bff6988056163f147e06dcfac2556b588 Mon Sep 17 00:00:00 2001
From: Gleb Peregud <gleber.p@gmail.com>
Date: Sun, 4 Jun 2017 20:26:37 +0200
Subject: erlang: Generalize Erlang/OTP derivations.

Switch official Erlang versions to use a common builder.
---
 pkgs/development/beam-modules/lib.nix | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 pkgs/development/beam-modules/lib.nix

(limited to 'pkgs/development/beam-modules/lib.nix')

diff --git a/pkgs/development/beam-modules/lib.nix b/pkgs/development/beam-modules/lib.nix
new file mode 100644
index 00000000000..2d0eef09563
--- /dev/null
+++ b/pkgs/development/beam-modules/lib.nix
@@ -0,0 +1,21 @@
+{ pkgs }:
+
+rec {
+
+  /* Uses generic-builder to evaluate provided drv containing OTP-version specific data.
+
+  drv: package containing version-specific args;
+  builder: generic builder for all Erlang versions;
+  gargs: arguments passed to the generic-builder, used mostly to customize dependencies;
+  args: arguments merged into version-specific args, used mostly to enable/disable high-level OTP
+    features, like ODBC or WX support;
+
+  Please note that "mkDerivation" defined here is the one called from R16.nix and similar files.
+  */
+  callErlang = drv: gargs: args: pkgs.callPackage drv (
+    let builder = pkgs.callPackage ../../development/interpreters/erlang/generic-builder.nix gargs;
+    in {
+      mkDerivation = a: builder (a // args);
+    });
+
+}
-- 
cgit 1.4.1