=== modified file 'common.zsh'
--- common.zsh	2017-12-07 19:20:41 +0000
+++ common.zsh	2017-12-06 19:34:01 +0000
@@ -7,7 +7,7 @@
 BASE=$2
 OUT=$3
 FUNCDIR=${0:h:a}/functions
-TARGET=${BASE##*/}.${${${DO:t}%.do}#default.}
+TARGET=$BASE:t.${${${DO:t}%.do}#default.}
 
 # helper that prints out error message and exits
 die() {

=== modified file 'functions/clone-depend-if-changed'
--- functions/clone-depend-if-changed	2017-12-07 19:20:41 +0000
+++ functions/clone-depend-if-changed	2017-12-01 17:53:54 +0000
@@ -7,7 +7,7 @@
 
 local -a mount_opts
 mount_opts=(
-	lowerdir=${${vars[source_dir]:A}//=/\\=}
+	lowerdir=${${vars[build_dir]:A}//=/\\=}
 	upperdir=${${vars[changes_dir]:A}//=/\\=}
 	workdir=${${vars[work_dir]:A}//=/\\=}
 )