From 3835442cf0973f435b6f543977fe40b7a2b9c51c Mon Sep 17 00:00:00 2001
From: John Ericson <John.Ericson@Obsidian.Systems>
Date: Wed, 30 Oct 2019 14:40:07 +0000
Subject: [PATCH] patchelf: `dontPatchELF` in setup hook is allowed to be
 undefined

---
 pkgs/development/tools/misc/patchelf/setup-hook.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/tools/misc/patchelf/setup-hook.sh b/pkgs/development/tools/misc/patchelf/setup-hook.sh
index bc1cddd4879..576b9ca2103 100644
--- a/pkgs/development/tools/misc/patchelf/setup-hook.sh
+++ b/pkgs/development/tools/misc/patchelf/setup-hook.sh
@@ -2,7 +2,7 @@
 # directories from the RPATH of every library or executable in every
 # output.
 
-fixupOutputHooks+=('if [ -z "$dontPatchELF" ]; then patchELF "$prefix"; fi')
+fixupOutputHooks+=('if [ -z "${dontPatchELF-}" ]; then patchELF "$prefix"; fi')
 
 patchELF() {
     local dir="$1"