* automake.in: Register the `java' language.

	* automake.in: Register the `java' language.
	(resolve_linker): Handle GCJLINK.
	(lang_java_rewrite): New function.
	(LANG_IGNORE, LANG_PROCESS, LANG_SUBDIR): New constants.
	(lang_c_rewrite): Use new constants.
	(lang_cxx_rewrite): Likewise.
	(lang_header_rewrite): Likewise.
	(lang_yacc_rewrite): Likewise.
	(lang_yaccxx_rewrite): Likewise.
	(lang_lex_rewrite): Likewise.
	(lang_lexxx_rewrite): Likewise.
	(lang_asm_rewrite): Likewise.
	(lang_f77_rewrite): Likewise.
	(lang_ppf77_rewrite): Likewise.
	(lang_ratfor_rewrite): Likewise.
	(lang_objc_rewrite): Likewise.
	(handle_single_transform_list): Likewise.  Handle LANG_SUBDIR
	return from rewrite function.
	(lang_java_finish): New function.
	(register_language): Changed interface and all calls.  Added
	`autodep' settings to various languages.
	(handle_dependencies): Use `autodep' property of language when
	including dependency-tracking code.