* 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.