use libplumb instead
diff --git a/src/cmd/sam/mkfile b/src/cmd/sam/mkfile
index 8402579..e677d39 100644
--- a/src/cmd/sam/mkfile
+++ b/src/cmd/sam/mkfile
@@ -13,7 +13,6 @@
 	mesg.$O\
 	moveto.$O\
 	multi.$O\
-	plumb.$O\
 	rasp.$O\
 	regexp.$O\
 	shell.$O\
@@ -27,4 +26,6 @@
 	errors.h\
 	mesg.h\
 
+SHORTLIB=plumb 9
+
 <$PLAN9/src/mkone
diff --git a/src/cmd/sam/plumb.c b/src/cmd/sam/plumb.c
deleted file mode 100644
index d8db33d..0000000
--- a/src/cmd/sam/plumb.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include <u.h>
-#include "plumb.h"
-
-/* XXX - Can we do better than this? */
-char *cleanname(char *s) { return s; }
-char *plumbunpackattr(char *cbuf) {  return 0; }
-char *plumbpack(Plumbmsg *pm, int *i) { return 0; }
-int plumbfree(Plumbmsg *pm) { return 0; }
-