Add statcheck.
diff --git a/src/lib9/convM2D.c b/src/lib9/convM2D.c
index ee49149..52d7fad 100644
--- a/src/lib9/convM2D.c
+++ b/src/lib9/convM2D.c
@@ -33,6 +33,12 @@
 	return 0;
 }
 
+int
+statcheck(uchar *buf, uint nbuf)
+{
+	return statchecku(buf, nbuf, 0);
+}
+
 static char nullstring[] = "";
 
 uint