$NetBSD: patch-async_rwfd_c,v 1.1 2012/06/18 03:28:55 dholland Exp $

Avoid strict-aliasing warnings on Linux.

--- async/rwfd.c~	2009-02-12 13:20:42.000000000 +0000
+++ async/rwfd.c
@@ -51,7 +51,7 @@ writevfd (int fd, const struct iovec *io
   cmh->cmsg_level = SOL_SOCKET;
   cmh->cmsg_type = SCM_RIGHTS;
   cmh->cmsg_len = CMSG_LEN(sizeof(int));
-  *(int *)CMSG_DATA(cmh) = wfd;
+  memcpy(CMSG_DATA(cmh), &wfd, sizeof(int));
 #else /* !HAVE_CMSGHDR */
   mh.msg_accrights = (char *) fdp;
   mh.msg_accrightslen = sizeof (fdp);
@@ -110,7 +110,7 @@ readvfd (int fd, const struct iovec *iov
 	      errno = EAGAIN;
 	  }
 	  if (cmh->cmsg_type == SCM_RIGHTS) {
-	      *rfdp = (*(int *)CMSG_DATA(cmh));
+	      memcpy(rfdp, CMSG_DATA(cmh), sizeof(int));
 	  }
       }
 #else /* !HAVE_CMSGHDR */