Fix error when ZSH_VERSION is unset.

Merges https://github.com/espressif/esp-idf/pull/6587
2021-02-21 06:09:30 +01:00
parent ae72870d43
commit b9038d045e
1 changed files with 1 additions and 1 deletions
--- a/export.sh
+++ b/export.sh
@@ -141,7 +141,7 @@ idf_export_main() {
 }

 enable_autocomplete() {
-    if [ -n "$ZSH_VERSION" ]
+    if [ -n "${ZSH_VERSION-}" ]
    then
        autoload -Uz compinit && compinit -u
        eval "$(env _IDF.PY_COMPLETE=source_zsh idf.py)" || echo "WARNING: Failed to load shell autocompletion!"