qtbase-setup-hook: `postPhases` may be undefined

My earlier sed missed this because it already had `{..}`.
2019-11-02 19:22:36 -04:00 · 2019-11-02 19:22:36 -04:00 · 9b274e2962
parent 9df7efe0c6
commit 9b274e2962
1 changed files with 1 additions and 1 deletions
--- a/pkgs/development/libraries/qt-5/hooks/qtbase-setup-hook.sh
+++ b/pkgs/development/libraries/qt-5/hooks/qtbase-setup-hook.sh
@ -62,5 +62,5 @@ postPatchMkspecs() {
    fi
 }
 if [ -z "${dontPatchMkspecs-}" ]; then
-    postPhases="${postPhases}${postPhases:+ }postPatchMkspecs"
+    postPhases="${postPhases-}${postPhases:+ }postPatchMkspecs"
 fi