From 86d1953ed4a5317e6d103aaa08bc622d7e5fb34a Mon Sep 17 00:00:00 2001
From: aszlig <aszlig@redmoonstudios.org>
Date: Mon, 29 Aug 2016 23:20:59 +0200
Subject: [PATCH] build-rebar3: Append postPatch to original hook

The postPatch attribute is already in the function argument but is
unused elsewhere in the code, so setting postPatch with buildRebar3 is
going to end up in a no-op.

This now allows to use postPatch within buildRebar3 by simply appending
to the existing postPatch hook that removes the rebar and rebar3
escripts.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Cc: @ericbmerritt
---
 pkgs/development/beam-modules/build-rebar3.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/beam-modules/build-rebar3.nix b/pkgs/development/beam-modules/build-rebar3.nix
index ac40b76a78a..f783683cd4a 100644
--- a/pkgs/development/beam-modules/build-rebar3.nix
+++ b/pkgs/development/beam-modules/build-rebar3.nix
@@ -49,7 +49,7 @@ let
 
     postPatch = ''
       rm -f rebar rebar3
-    '';
+    '' + postPatch;
 
     configurePhase = if configurePhase == null
     then ''