Check if gethostbyname_r take five params

Check if gethostbyname_r take five params

2001-04-11  JP Rosevear  <jpr@ximian.com>

	* configure.in: Check if gethostbyname_r take five params

	* acconfig.h: add GETHOSTBYNAME_R_FIVE_ARGS

2001-04-11  JP Rosevear  <jpr@ximian.com>

	* providers/imap/Makefile.am: user GNOME_INCLUDEDIR since gnome
	files are included in the top level camel headers and the gtk
	include dir is now versioned and such

	* providers/local/Makefile.am: ditto

	* providers/pop3/Makefile.am: ditto

	* providers/smtp/Makefile.am: ditto

	* providers/sendmail/Makefile.am: ditto

	* camel-service.c: use five arg version of gethostbyname_r if
	appropriate
	(camel_get_host_byname): check if msg->herr is non-zero instead of
	checking if msg->hp is null since we may not always have msg->hp