diff -uri a/install-sh b/install-sh
--- a/install-sh	2013-09-14 01:04:27.285245115 +0200
+++ b/install-sh	2013-09-14 01:04:34.917244870 +0200
@@ -160,6 +160,10 @@
 	case $dst_arg in
 	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
 	esac
+	if test ! -d $dst_arg; then
+	  echo "$0: $dst_arg is not a directory." >&2
+	  exit 1
+	fi
 	shift;;
 
     -T) no_target_directory=true;;