===================================================================
RCS file: /cvsrepo/anoncvs/cvs/www/Attic/porting.html,v
retrieving revision 1.57
retrieving revision 1.58
diff -u -r1.57 -r1.58
--- www/Attic/porting.html	2007/06/18 15:27:16	1.57
+++ www/Attic/porting.html	2009/01/27 13:19:14	1.58
@@ -12,7 +12,7 @@
   <meta name="distribution"
         content="global">
   <meta name="copyright"
-        content="This document copyright 1997-2006 by OpenBSD.">
+        content="This document copyright 1997-2009 by OpenBSD.">
   <title>Building an OpenBSD port</title>
   <link rev="made" HREF="mailto:www@openbsd.org">
  </head>
@@ -315,6 +315,17 @@
        are able to do a better job with some very frequent functions such as 
        <code>strlen</code> if you include the right header file.
 
+   <li>Carefully check the build log for any compiler warnings.
+       <ul><li>
+           <code>implicit declaration of function foo()</code>
+           indicates that a function prototype is missing.
+           This means that the compiler will assume the return type
+           to be an integer.
+           Where the function actually returns a pointer, on 64-bit
+           platforms it will be truncated, usually causing a segmentation
+           fault.
+       </ul>
+
    <li>Don't use the name of a standard system function for anything else.
        If you want to write your own function, give it its own name, and 
        call that function everywhere.  If you wish to revert to the 
@@ -406,6 +417,6 @@
   <hr>
   <a href="index.html"><img height=24 width=24 src=back.gif border=0 alt=OpenBSD></a> 
   <a href="mailto:www@openbsd.org">www@openbsd.org</a>
-<br><small>$OpenBSD: porting.html,v 1.57 2007/06/18 15:27:16 espie Exp $</small>
+<br><small>$OpenBSD: porting.html,v 1.58 2009/01/27 13:19:14 sthen Exp $</small>
  </body>
 </html>