2008-08-04  Tor Lillqvist  <tml@novell.com>

	* configure.in: Don't bother with the test "if gio can sniff png"
	if $gio_can_sniff has been already set. Preset it to "no" for
	Win32. This helps cross-compilation from 32-bit Windows to
	64-bit. No idea how this should be handled for cross-compilation
	in general.


svn path=/trunk/; revision=20954