emacsclient.c build on FreeBSD

[Giorgos Keramidas <keramida@ceid.upatras.gr>]

Hi Dan,

This change:

: 2008-12-10  Dan Nicolaescu  <dann@ics.uci.edu>
:
:         * emacsclient.c (print_help_and_exit): Describe what an empty
:         string argument does for --alternate-editor.
:         (set_socket): Make it possible to not exit in case of an error.
:         (start_daemon_and_retry_set_socket): New function.
:         (main): Use it.  Restore the NULL value for socket_name and
:         server_file after the set_socket call.

needs a small patch to build on FreeBSD/i386:

%%%
diff -r 1d6f7d6431ac lib-src/emacsclient.c
--- a/lib-src/emacsclient.c     Sun Dec 14 02:39:37 2008 +0200
+++ b/lib-src/emacsclient.c     Sun Dec 14 02:58:31 2008 +0200
@@ -42,6 +42,7 @@
 #else /* !WINDOWSNT */

 # include <sys/types.h>
+# include <sys/wait.h>

 # ifdef HAVE_INET_SOCKETS
 #  include <netinet/in.h>
%%%

The WUNTRACED macro referenced by the new code in the patch is defined
in <sys/wait.h> on FreeBSD, and without this include the build of Emacs
fails.  I looked for a HAVE_SYS_WAIT_H macro but couldn't find one.  If
<sys/wait.h> is not available on GNU/Linux we can definitely add a check
in configure.in too :)