2003-05-14  Masahiro Sakai  <sakai@tom.sfc.keio.ac.jp>

	* configure.in: call AC_LIBTOOL_WIN32_DLL which is necessary for
	building shared library on win32 platform.
	check lockf() for egg-recent-files.

	* libpanel-applet/Makefile.am (libpanel_applet_2_la_LDFLAGS):
	* applets/clock/Makefile.am (libclock_applet_2_la_LDFLAGS):
	add -no-undefined which is necessary for building shared library on
	some platforms (e.g. Win32 and BeOS).

	* gnome-panel/egg-recent-model.c: disable egg_recent_model_lock_file()
	and egg_recent_model_unlock_file() when lockf() isn't available.
	[FIXME: should be implemented using fcntl() and F_SETLK in such case.]