autolib
diff --git a/include/u.h b/include/u.h
index ba93696..d062a9d 100644
--- a/include/u.h
+++ b/include/u.h
@@ -111,6 +111,11 @@
 #undef _NEEDUINT
 #undef _NEEDULONG
 
+/*
+ * Funny-named symbols to tip off 9l to autolink.
+ */
+#define AUTOLIB(x)	static int __p9l_autolib_ ## x = 1;
+
 #if defined(__cplusplus)
 }
 #endif