* Makefile.in (c-opts.o): Update
* c-opts.c: Include intl.h.
(print_help): Move from cppinit.c. Remove unused options.
(COMMAND_LINE_OPTIONS): Move more from cppinit.c.
(missing_arg): Complain for switches without an argument.
(c_common_decode_option): Reject missing joined arguments.
Handle new switches from cppinit.c.
* cppinit.c (COMMAND_LINE_OPTIONS): Move some switches to c-opts.c.
(cpp_handle_option): Similarly.
(print_help): Moved to c-opts.c.
* cpplib.h (struct cpp_options): Remove help_only.
* gcc.c (cpp_unique_options): Remove -$.
* doc/cppopts.texi: Undocument -h.