pythonPackages.pipBuildHook: fix unbound variable

for compatibility with set -u
2019-11-20 05:05:59 +01:00 · 2019-11-20 05:05:59 +01:00 · ae465621ff
commit ae465621ff
parent 7429f5fe9b
1 changed files with 1 additions and 1 deletions
--- a/pkgs/development/interpreters/python/hooks/pip-build-hook.sh
+++ b/pkgs/development/interpreters/python/hooks/pip-build-hook.sh
@ -36,7 +36,7 @@ if [ -z "${dontUsePipBuild-}" ] && [ -z "${buildPhase-}" ]; then
    buildPhase=pipBuildPhase
 fi

-if [ -z "$shellHook" ]; then
+if [ -z "${shellHook-}" ]; then
    echo "Using pipShellHook"
    shellHook=pipShellHook
 fi