* depend2.am (%.lo): Handle case where compiler does not put space

	* depend2.am (%.lo): Handle case where compiler does not put space
	before ":".  From Raja R Harinath.
	* automake.in (scan_one_configure_file): AC_CONFIG_HEADER is not
	obsolete; it simply isn't preferred with automake.
	(scan_one_configure_file): Likewise for AC_DECL_YYTEXT and
	AC_PROG_LEX.
	* automake.in (am_line_error): Handle case where variable defined
	in configure.in.  Fixes test badline.test.
	(%configure_vars): Redefined meaning of values.
	(scan_one_configure_file): Set $configure_vars values
	appropriately.