Add AM_CONDITIONAL calls also in the non-x11 branch. Otherwise we get

Add AM_CONDITIONAL calls also in the non-x11 branch. Otherwise we get

2002-09-08  Tor Lillqvist  <tml@iki.fi>

	* configure.in: Add AM_CONDITIONAL calls also in the non-x11
	branch. Otherwise we get "conditional \"$1\" was never defined.
	Usually this means the macro was only invoked conditionally."
	errors when running configure if using automake 1.6a. Yeah, I know
	that autogen.sh says to use automake 1.4, but on Win32 I more or
	less have to use the bleeding edge. I think.

Fix an earlier ChangeLog entry to include the file name:

2002-08-31  Tor Lillqvist  <tml@iki.fi>

	* gtk/gtkfilesel.c: Include <sys/cygwin.h on Cygwin, for