cpplib: code rearrangement, take 2

[Zack Weinberg]

This patch is a monster code rearrangement.  I submitted it back in
January and was asked to wait for the gcc2 merge.  Here it is again.

There are no changes in this patch which affect the behavior of the
code.

The list manager doesn't like the patch because it's too big, so I've
put it up for anon ftp at rabi.phys.columbia.edu:/pub/zack/rearr.diff.gz.

zw

1999-02-18 09:55 -0500  Zack Weinberg  <zack@rabi.columbia.edu>

	* cpplib.c: Kill define of STDC_VALUE.  Don't include output.h
          or prefix.h. Change CPP_IS_MACRO_BUFFER to not refer to
          macro_cleanup.
	  (GET_ENV_PATH_LIST, PATH_SEPARATOR, STANDARD_INCLUDE_DIR,
          predefs, SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE,
          CPP_WCHAR_TYPE, USER_LABEL_PREFIX, REGISTER_PREFIX, struct
          cpp_pending, version_string, struct default_include,
          include_defaults_array, path_include, cpp_options_init,
          dump_special_to_buffer, initialize_builtins, cpp_start_read,
          cpp_reader_init, nreverse_pending, push_pending, print_help,
          cpp_handle_option, cpp_handle_options, cpp_finish,
          cpp_cleanup): Move to cppinit.c.

	  (macro_cleanup, struct arglist, collect_expansion,
	  create_definition, compare_defs, comp_def_part, ARG_BASE,
	  struct argdata, macarg, change_newlines, timestamp,
	  monthnames, special_symbol, unsafe_chars, macroexpand,
	  push_macro_expansion): Move to cpphash.c.

	  (quote_string, check_macro_name, cpp_expand_to_buffer,
	  output_line_command, cpp_undef): Export.
	  (null_underflow, null_cleanup, handle_directive): Make static.

	* cpplib.h: Prototype now-exported functions.  Adjust decls of
          syntax tables so we can include cpplib.h in cppinit.c.
	* cpphash.h: Prototype all functions exported by cpphash.c.

	* cppinit.c: Make syntax tables initialized data if possible
          (uses GCC designated-initializer extension).
	* cppexp.c:  Make cpp_lex static.

	* Makefile.in: Move -D switches for the various include dirs
          from cpplib.o rule to cppinit.o rule.  Adjust dependencies.