From 46d4bb5d01175feefbe8f3fdaee68701801e9741 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@devalot.com>
Date: Wed, 30 Jun 2021 07:49:08 -0700
Subject: [PATCH] elpaBuild: Delay src evaluation so it can be overridden

This change allows ELPA packages to have their src attribute updated
by overrideAttrs.  Without this change the installPhase references the
original src attribute and overriding is not possible.
---
 pkgs/build-support/emacs/elpa.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/build-support/emacs/elpa.nix b/pkgs/build-support/emacs/elpa.nix
index 41a0670d0c8..61960ed22c6 100644
--- a/pkgs/build-support/emacs/elpa.nix
+++ b/pkgs/build-support/emacs/elpa.nix
@@ -28,7 +28,7 @@ import ./generic.nix { inherit lib stdenv emacs texinfo writeText; } ({
 
     emacs --batch -Q -l ${./elpa2nix.el} \
         -f elpa2nix-install-package \
-        "${src}" "$out/share/emacs/site-lisp/elpa"
+        "$src" "$out/share/emacs/site-lisp/elpa"
 
     runHook postInstall
   '';