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-rw-r--r--include/lib.sh3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/lib.sh b/include/lib.sh
index 427a6aec..8bcfc216 100644
--- a/include/lib.sh
+++ b/include/lib.sh
@@ -26,6 +26,9 @@ update_xbmkver()
{
xbmk_sanitize_version
+ [ -z "${version-}${versiondate-}" ] && \
+ err "version and/or versiondate unset" "update_xbmkver" "$@"
+
printf "%s\n" "$version" > "$1/.version" || \
err "can't write '$1'" "update_xbmkver" "$@"; :