--- rpc_main.c.orig
+++ rpc_main.c
@@ -82,11 +82,13 @@ static char pathbuf[MAXPATHLEN + 1];
 static const char *allv[] = {
 	"rpcgen", "-s", "udp", "-s", "tcp",
 };
+#define nitems(a) (sizeof(a)/sizeof(a[0]))
 static int allc = nitems(allv);
 static const char *allnv[] = {
 	"rpcgen", "-s", "netpath",
 };
 static int allnc = nitems(allnv);
+#undef nitems
 
 /*
  * machinations for handling expanding argument list