2002-03-29  Tor Lillqvist  <tml@iki.fi>

	* configure.in: Start of changes for autoconfiscated build on
	Win32. Mostly similar to how it is done in the gimp-1-2 branch:

	Set LT_CURRENT_MINUS_AGE to $LT_CURRENT - $LT_AGE, this is used by
	libtool in DLL names, we need it for the *.rc.in files in case we
	want to have version resources in DLLs (these include the original
	filename). AC_SUBST it.

	Call AC_LIBTOOL_WIN32_DLL.

	Test for Win32 platform and native Win32, set automake
	conditionals PLATFORM_WIN32 and OS_WIN32. Set PATHSEP to ';' or
	':', AC_SUBST it.

	If on Win32, test for lib.exe availability (to build MS import
	libraries), set automake conditional MS_LIB_AVAILABLE.

	Include GLIB_LIBS when checking for bind_textdomain_codeset, in
	case using a separate -lintl.

	Don't try to link with -lX11 when looking for libXpm unless the
	GDK backend is x11. On Win32 we use the "no-X" version of libXpm.