From 784c3dc0f96ca85561e3a6805b0261d4bfb9f7e0 Mon Sep 17 00:00:00 2001
From: John Ericson <John.Ericson@Obsidian.Systems>
Date: Thu, 7 Nov 2019 19:39:03 -0500
Subject: [PATCH] qt5 qmake setup hook: `qmakeFlags` may be undefined

---
 pkgs/development/libraries/qt-5/hooks/qmake-hook.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/qt-5/hooks/qmake-hook.sh b/pkgs/development/libraries/qt-5/hooks/qmake-hook.sh
index b785a779c8bc..7f6ddb76ad57 100644
--- a/pkgs/development/libraries/qt-5/hooks/qmake-hook.sh
+++ b/pkgs/development/libraries/qt-5/hooks/qmake-hook.sh
@@ -1,6 +1,6 @@
 . @fix_qmake_libtool@
 
-qmakeFlags=( $qmakeFlags )
+qmakeFlags=( ${qmakeFlags-} )
 
 qmakePrePhase() {
     qmakeFlags=( \