1 files changed, 5 insertions, 0 deletions
diff --git a/tool/make-snapshot b/tool/make-snapshot
index 957c3e8b46..b19741de7f 100755
--- a/tool/make-snapshot
+++ b/tool/make-snapshot
@@ -6,6 +6,10 @@ export LC_ALL LANG
 : ${VPATH=include/ruby} ${YACC=bison} ${BASERUBY=ruby} ${RUBY=ruby} ${MV=mv}
 export VPATH YACC BASERUBY RUBY MV
 
+if [ ! "$1" ]; then
+    echo usage: `basename $0` new-directory-to-save 1>&2
+    exit 1
+fi
 [ -d "$1" ] || mkdir "$1" || exit 1
 dest=`cd "$1"; pwd`
 
@@ -29,3 +33,4 @@ for cmd in "bzip tarball.tar.bz2 tar cjf" "gzip tarball.tar.gz tar czf" "zip arc
 	echo " failed"
     fi
 done
+exec rm -fr $v