--- IO-AIO/schmorp.h	2009/07/14 00:13:36	1.1
+++ IO-AIO/schmorp.h	2009/07/14 00:14:27	1.2
@@ -1,6 +1,10 @@
 #ifndef SCHMORP_PERL_H_
 #define SCHMORP_PERL_H_
 
+/* WARNING
+ * This header file is a shared resource between many modules.
+ */
+
 /* useful stuff, used by schmorp mostly */
 
 #define PERL_VERSION_ATLEAST(a,b,c)				\