2006-12-15  Matthias Clasen  <mclasen@redhat.com>

	Fix #357585, Padraig O'Briain.

	* configure.in: Check for fdwalk.

	* glib/gspawn.c (do_exec): Use fdwalk() to close all
	file descriptors.

	* glib/gspawn.c (fdwalk): Fallback implementation of
	fdwalk.