GitLab

	(c_tree_printer): New function.
	(lang_init): Initialize lang_printer.

	* Makefile.in (c-lang.o): Depends on diagnostic.h


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35818 138bc75d-0d04-0410-961f-82ee72b054a4

	before the name.
	(lex_line): Glue @ onto the beginning of identifiers and
	string constants, in Objective-C mode.
	(output_token, spell_token): Handle CPP_OSTRING.
	(can_paste, maybe_paste_with_next): Handle pasting @ onto the
	beginning of a NAME or a STRING, in objc mode.

	* cpplib.c (get_define_node): Do not permit identifiers that
	begin with @ to be #defined.
	* cppmacro.c (CAN_PASTE_AFTER): Add CPP_OTHER.
	* cpplib.h (TTYPE_TABLE): Add CPP_OSTRING.

	* c-lang.c, objc/objc-act.c (build_objc_string): Delete.
	* c-tree.h (build_objc_string): Delete prototype.
	* objc/objc-tree.def: Delete OBJC_STRING_CST.
	* c-lex.c (yylex): Use build_string for all three kinds of strings.

	* gcc.dg/cpp/20000625-2.c: Don't expect a warning on line 4.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35470 138bc75d-0d04-0410-961f-82ee72b054a4

	(implicit_decl_warning): New function.
	(implicitly_declare): Use it.
	* c-typeck.c (build_external_ref): Use implicit_decl_warning
	to complain about implicit decls of builtins.

	* c-lang.c (lang_init): Set mesg_implicit_function_declaration
	based on pedantic && flag_isoc99, if not already set.
	* c-tree.h: Declare mesg_implicit_function_declaration.
	Prototype implicit_decl_warning.

	* gcc.dg/c99-impl-decl-1.c: No longer XFAIL.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35385 138bc75d-0d04-0410-961f-82ee72b054a4

	(primary: IDENTIFIER): Just call build_external_ref.
	* c-parse.y, c-parse.c, objc/objc-parse.y, objc/objc-parse.c:
	Regenerate.
	* c-lex.c (lastiddecl): Remove.
	(yylex): Replace all instances of lastiddecl with local
	variables.

	* c-typeck.c (build_external_ref): New function.  Treat decls
	with C_DECL_ANTICIPATED mostly the same as nonexistent decls.
	Look up the decl from the id here.  Call lookup_objc_ivar.
	* c-lang.c (lookup_objc_ivar): Stub.
	* objc/objc-act.c (lookup_objc_ivar): New function.

	* c-tree.h: Prototype lookup_objc_ivar and build_external_ref.
	* c-lex.h: Don't declare lastiddecl.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34602 138bc75d-0d04-0410-961f-82ee72b054a4

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@32171 138bc75d-0d04-0410-961f-82ee72b054a4

	c-typeck.c, objc/objc-act.c: Remove all references to obstack
	functions obsoleted by GC, such as push_obstacks_nochange,
	end_temporary_allocation, savealloc, saveable_tree_cons, etc.
	and code which existed only to decide whether or not to call
	them.  Remove now-unused NESTED argument from start_function;
	all callers changed.  Do not change behavior based on ggc_p.
	The use of the ixp_obstack in c-iterate.c and the util_obstack
	in objc/objc-act.c remain; these are not obsoleted by garbage
	collection.
	* c-tree.h: Update prototype for start_function.

	* c-parse.y, c-parse.c, objc/objc-parse.c, objc/objc-parse.y: Rebuild.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31611 138bc75d-0d04-0410-961f-82ee72b054a4

        * c-common.h: Likewise.
        * c-decl.c: Likewise.
        * c-iterate.c: Likewise.
        * c-lang.c: Likewise.
        * c-lex.c: Likewise.
        * c-lex.h: Likewise.
        * c-parse.in: Likewise.
        * c-pragma.c: Likewise.
        * c-pragma.h: Likewise.
        * c-tree.h: Likewise.
        * c-typeck.c: Likewise.
        * objc/objc-act.c: Likewise.
        * objc/objc-act.h: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31362 138bc75d-0d04-0410-961f-82ee72b054a4

* toplev.c (flag_bounds_check, flag_bounded_pointers): New flags.
(f_options): Add "bounded-pointers" and "bounds-check" entries.
* c-lang.c (lang_init_options): Set flag_bounds_check as "unspecified".
(lang_init): Set default for flag_bounds_check if still "unspecified".


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30035 138bc75d-0d04-0410-961f-82ee72b054a4

Correctly build argument list to constructor and destructor functions.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@29728 138bc75d-0d04-0410-961f-82ee72b054a4

	(c-parse.o, c-decl.o, c-lang.o, c-lex.o, c-common.o,
	$(out_object_file)): Depend on ggc.h.
	* c-common.c: Include "ggc.h".
	(combine_strings): If doing GC, use ggc_alloc_string.
	* c-decl.c: Include "ggc.h".
	(ggc_p): Define with value 0.
	(mark_binding_level): New function.
	(init_decl_processing): Add GC roots.
	(mark_c_function_context): New function.
	(lang_mark_false_label_stack): New function.
	(lang_mark_tree): New function.
	(lang_cleanup_tree): New function.
	* c-lang.c: Include "ggc.h".
	(lang_init): Call c_parse_init.
	* c-lex.c: Include "ggc.h".
	(check_linenum): If doing GC, don't copy filenames to permanent
	obstack.
	* c-parse.in: Include "ggc.h".
	(c_parse_init): New function.
	* c-tree.h (c_parse_init, mark_c_function_context): Declare.
	* objc/Make-lang.in (objc-parse.o): Depend on ggc.h.

	* except.c (mark_eh_state): Mark more state.
	* function.c (mark_function_state): Likewise.
	* ggc-simple.c (ggc_alloc_rtvec): Bring in sync with non-gc version.
	(ggc_alloc_string) [GGC_DUMP]: Fix typo.
	* toplev.c (mark_file_stack): New function.
	(compile_file): If doing GC, use ggc_alloc_string on input filename.
	(main): Add root for input_file_stack.

	* i386.c: Include "ggc.h".
	(ix86_mark_machine_status): New function.
	(override_options): Set mark_machine_status.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@29143 138bc75d-0d04-0410-961f-82ee72b054a4

	Delete elt NEXT.
	(c_function_chain): Delete.
	(push_c_function_context): New arg F.  Don't warn about nested
	functions here.  Fill LANGUAGE elt of F.  Delete code to update
	c_function_chain.  Don't call push_function_context.
	(pop_c_function_context): New arg F.  Restore from there instead of
	from c_function_chain.  Don't call pop_function_context.  Clear out
	LANGUAGE field of F when done.
	* c-lang.c: Include "function.h"
	(lang_init): Initialize save_lang_status and restore_lang_status.
	* c-parse.in (nested_function, nested_function_notype): Warn about
	nested functions.  Call push_function_context/pop_function_context
	instead of the _c_ variants.
	* c-tree.h (push_c_function_context, pop_c_function_context): Update
	prototype.
	* Makefile.in (c-lang.o): Update dependencies.

	* emit-rtl.c (init_emit): Use xmalloc to allocate regno_reg_rtx,
	regno_pointer_flag, regno_pointer_align.
	(gen_reg_rtx): Use xrealloc to enlarge them.
	(free_emit_status): New function.
	* function.c (mark_machine_status, mark_lang_status): New variables.
	(assign_stack_local_1): Renamed from assign_outer_stack_local.  Merge
	in some bits from assign_stack_local.  All callers changed to use new
	name.
	(assign_stack_local): Just call assign_stack_local_1.
	(free_after_compilation): New function.
	(put_reg_into_stack): Simplify to always call assign_stack_local_1.
	(trampoline_address): Likewise.
	(assign_parms): Use xcalloc/xrealloc to allocate parm_reg_stack_loc.
	(prepare_function_start): Explicitly clear some more variables.
	* function.h (struct function): New elt can_garbage_collect.
	(mark_machine_status, mark_lang_status): Declare variables.
	(free_after_compilation, free_emit_status, free_varasm_status,
	init_varasm_status): Declare functions.
	* toplev.c (rest_of_compilation): Call free_after_compilation when
	done with the current function.
	* varasm.c (free_varasm_status): New function.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@29117 138bc75d-0d04-0410-961f-82ee72b054a4

        (print_error_function): Add extern prototype.  Constify a char*.

        * c-lang.c (lang_identify): Constify a char*.

        * objc/objc-act.c (lang_identify): Constify a char*.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@28631 138bc75d-0d04-0410-961f-82ee72b054a4

	to avoid name clash.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@28207 138bc75d-0d04-0410-961f-82ee72b054a4

        * bitmap.h (bitmap_print): Likewise.
        * c-decl.c (builtin_function, grokdeclarator, grokfield): Likewise.
        * c-lang.c (build_objc_string): Likewise.
        * c-lex.c (yyerror, extend_token_buffer): Likewise.  Don't include
        limits.h or ctype.h.  Remove unused variable `p'.
        * c-lex.h (yyerror): Qualify a char* with the `const' keyword.
        * c-pragma.c (handle_pragma_token): Likewise.
        * c-pragma.h (handle_pragma_token): Likewise.
        * c-tree.h (build_objc_string, builtin_function, grokfield,
        build_indirect_ref, lvalue_or_else, readonly_warning, error_init,
        pedwarn_init): Likewise.
        * c-typeck.c (convert_for_assignment, warn_for_assignment,
        push_string, warning_init, incomplete_type_error,
        build_indirect_ref, lvalue_or_else, readonly_warning,
        build_c_cast, spelling, push_member_name, print_spelling,
        error_init, pedwarn_init, start_init): Likewise.
        * objc/objc-act.c (build_objc_string): Likewise.
        * print-tree.c (print_node_brief, print_node): Likewise.
        * tree.h (lvalue_or_else, print_node, print_node_brief): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25296 138bc75d-0d04-0410-961f-82ee72b054a4

	* c-lang.c: (parse_options,parse_in): Added.
	(lang_init_options): Initialized cpplib here.
	* c-decl.c (parse_options,cpp_initialized): Removed.
	(c_decode_option): Move initialization of cpplib to
	lang_init_options.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@24219 138bc75d-0d04-0410-961f-82ee72b054a4

	 * c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
	   (lang_init): Call check_newline always.
	 * c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
	   cpp_start_read, set yy_cur and yy_lim to read from
	   parse_in.token_buffer, so that we'll see the first #line
	   directive.
	 * cpplib.c (cpp_start_read): finclude the main input file
	   before processing -include/-imacros.	 Process -imacros and
	   -include separately, and handle -include by stacking a
	   buffer for the file in question as if it'd been #included.
	 * toplev.c (documented_lang_options) Recognize -H when
	   USE_CPPLIB is on.
1998-10-28 16:09 -0500	Zack Weinberg  <zack@rabi.phys.columbia.edu>
	 * cpplib.c: Merge do_once into do_pragma.  Break file handling
	   code out of do_include.
	   Move append_include_chain, deps_output,
	   file_cleanup, redundant_include_p, import_hash,
	   lookup_import, add_import, read_filename_string, read_name_map,
	   open_include_file, finclude, safe_read to cppfiles.c.
	   Move prototypes for deps_output, append_include_chain,
	   finclude to cpplib.h.  Move definition of struct
	   file_name_list there also.
	 * cppfiles.c: New file.  Contains all the above functions
	   broken out of cpplib.c; also hack_vms_include_specification
	   from cccp.c and find_include_file, a new function broken out of
	   do_include.
	 * Makefile.in (cppmain): Depend on cppfiles.o.
	   (fix-header): Likewise.
	   (cppfiles.o): New target.
	 * configure.in (--enable-c-cpplib): Add cppfiles.o to
	   extra_c_objs.  Add ../cppfiles.o to extra_cxx_objs.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@23424 138bc75d-0d04-0410-961f-82ee72b054a4

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@20608 138bc75d-0d04-0410-961f-82ee72b054a4

        * Makefile.in (c-lang.o): Depend on output.h.
        * c-lang.c: Include output.h.
        * sparc.c (sparc_builtin_saveregs): Remove unused variable `fntype'.
        * except.c (expand_builtin_eh_stub): Likewise for variable `jump_to'.
        * genrecog.c (write_subroutine): When writing insn-recog.c, mark
        variables `insn', `pnum_clobbers', `x[0 .. max_depth]' and `tem'
        with ATTRIBUTE_UNUSED.
        * regmove.c (copy_src_to_dest): Make function static to match its
        prototype.
        * reload1.c Include hard-reg-set.h before rtl.h to get macro
        HARD_CONST.  Include machmode.h before hard-reg-set.h.
        * rtl.h: Prototype `retry_global_alloc' and wrap with macro
        HARD_CONST to protect usage of typedef HARD_REG_SET.
        * tree.c: Prototype `_obstack_allocated_p'.
        * varasm.c: Wrap prototype of `asm_output_aligned_bss' in macro
        BSS_SECTION_ASM_OP.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@20556 138bc75d-0d04-0410-961f-82ee72b054a4

Wed Jun 10 13:07:02 1998  Dave Brolley  <brolley@cygnus.com>
	* objc/objc-act.c: Add cpplib declarations.
	(lang_decode_option): Initialize cpplib if necessary.
	(lang_decode_option): New argc/argv interface.
	* tree.h (lang_decode_option): New argc/argv interface.
	* toplev.c (lang_options): Add cpp options.
	(main): New interface for lang_decode_option.
	* gcc.c (default_compilers): Don't call cpp for a cpplib-enabled C compiler
	unless -E, -M or -MM is specified.
	* cpplib.h (cpp_handle_option): New function.
	* cpplib.c (cpp_handle_option): New function.
	(cpp_handle_options): Now calls cpp_handle_option.
	* c-tree.h (c_decode_option): New argc/argv interface.
	* c-lex.c (init_parse): cpplib now initialized in c_decode_option.
	* c-lang.c (lang_decode_option): New argc/argv interface.
	* c-decl.c: Add cpplib declarations.
	(c_decode_option): New argc/argv interface.
	(c_decode_option): Call cpp_handle_option.
	(c_decode_option): Now returns number of strings processed.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@20407 138bc75d-0d04-0410-961f-82ee72b054a4

        (compile_file): Remove flag_exceptions == 2 hack.
        (main): Call lang_init_options.
        * tree.h: Declare it.
        * c-lang.c: Implement it.
        * objc/objc-act.c: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@20274 138bc75d-0d04-0410-961f-82ee72b054a4

	* Makefile.in (c-lang.o): Depend on c-tree.h, c-lex.h and toplev.h.
	(c-lex.o): Depend on output.h.
	(c-common.o): Likewise.
	(stmt.o): Likewise.
	(calls.o): Likewise.
	(integrate.o): Depend on toplev.h.
	(regclass.o): Depend on output.h.
	(final.o): Depend on reload.h.
	* c-common.c: Include output.h.
	(check_format_info): Remove unused variable `integral_format'.
	* c-decl.c (print_lang_decl): Mark parameters `file', `node' and
	`indent' with ATTRIBUTE_UNUSED.
	(print_lang_type): Likewise.
	(maybe_build_cleanup): Likewise for parameter `decl'.
	(copy_lang_decl): Likewise for parameter `node'.
	* c-lang.c: Include c-tree.h, c-lex.h and toplev.h.
	(lang_print_xnode): Mark parameters `file', `node' and `indent'
 	with ATTRIBUTE_UNUSED.
	(lookup_interface): Likewise for parameter `arg'.
	(is_class_name): Likewise.
	(maybe_objc_check_decl): Likewise for parameter `decl'.
	(maybe_objc_comptypes): Likewise for parameters `lhs', `rhs' and
	`reflexive'.
	(maybe_objc_method_name): Likewise for parameter `decl'.
	(build_objc_string): Likewise for parameters `len' and `str'.
	* c-lex.c: Include output.h.
	* c-lex.h (position_after_white_space): Correct typo in prototype.
	* c-tree.h (finish_file, c_expand_start_cond, c_expand_start_else,
 	c_expand_end_cond, init_iterators): Add prototypes.
	* caller-save.c (set_reg_live): Mark parameters `reg' and `setter'
	with ATTRIBUTE_UNUSED.
	* calls.c: Include output.h.
	* cccp.c (pipe_closed): Mark parameter `signo' with
 	ATTRIBUTE_UNUSED.
	* combine.c: Move inclusion of expr.h to after insn-config.h.
	* iris6.h (ASM_IDENTIFY_GCC, ASM_IDENTIFY_LANGUAGE): Don't define
	as empty, rather define as ((void)0).
	* sparc.c (sparc_check_64): Add braces around ambiguous `else'.
	Add parentheses around assignment used as truth value.
	* cplus-dem.c (squangle_mop_up): Change return type to void.
	(internal_cplus_demangle): Remove unused parameter `options'.
	All callers changed.
	(cplus_demangle_opname): Remove function wide variable `int i' and
 	replace with `size_t i' at each location where it is used.
	(cplus_demangle_opname): change type of `i' from int to size_t.
	* cppexp.c (right_shift): Mark parameter `pfile' with
	ATTRIBUTE_UNUSED.
	* cpphash.c (cpp_lookup): Likewise.
	(cpp_hash_cleanup): Likewise.
	* cpplib.c (parse_name): Add a prototype and make it static.
	(null_underflow): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
	(null_cleanup): Likewise for parameters `pbuf' and `pfile'.
	(macro_cleanup): Likewise for parameter `pfile'.
	(file_cleanup): Likewise.
	* cpplib.h (cpp_reader_init, cpp_options_init, cpp_start_read,
 	cpp_read_check_assertion, skip_rest_of_line): Add prototypes.
	* crtstuff.c (force_to_data, __CTOR_LIST__, force_to_data,
	__DTOR_END__, __FRAME_END__): Mark with ATTRIBUTE_UNUSED.
	* cse.c (cse_check_loop_start): Mark parameter `set' with
 	ATTRIBUTE_UNUSED.
	* dbxout.c (flag_minimal_debug, have_used_extensions,
	source_label_number): Move inside macro wrapper check against
	defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO).
	* dwarf2out.c (gen_entry_point_die): Hide prototype and definition.
	* except.h (doing_eh): Provide prototype.
	* expr.c: Move inclusion of expr.h to after insn-config.h.
	* final.c: Include reload.h.
	(shorten_branches): Cast the first argument of bzero to char *.
	* fix-header.c (cpp_print_containing_files): Mark parameter
 	`pfile' with ATTRIBUTE_UNUSED.
	(cpp_fatal): Likewise.
	* flow.c (find_basic_blocks_1): Cast the first argument of bzero
	to char *.
	* genattrtab.c (make_length_attrs): Change the type of variable
	`i' from int to size_t.
	(zero_fn): Mark parameter `exp' with ATTRIBUTE_UNUSED.
	(one_fn): Likewise.
	* genextract.c (main): When generating insn-extract.c, mark
	variable `junk' with ATTRIBUTE_UNUSED.
	* gengenrtl.c (gencode): When generating genrtl.c, cast the first
	argument of bzero to char*.
	* integrate.c: Include toplev.h.
	* libgcc2.c: Wrap `struct exception_table' and
	`find_exception_handler' in macro DWARF2_UNWIND_INFO.
	* objc/Make-lang.in (objc-act.o): Depend on toplev.h.
	* objc/objc-act.c: Include toplev.h.
	(lang_print_xnode): Mark parameters `file', `node' and `indent'
	with ATTRIBUTE_UNUSED.
	(finish_protocol): Likewise for parameter `protocol'.
	* output.h (declare_weak): Add prototype.
	(decode_reg_name): Don't wrap with TREE_CODE macro.
	(assemble_alias): Add prototype.
	* regclass.c: Include output.h.
	* reload.h (reloads_conflict): Add prototype.
	* rtl.h (print_rtl_single, mark_elimiation, reg_class_subset_p,
	output_func_start_profiler): Add prototypes.
	* rtlanal.c (reg_set_p_1): Mark parameters `x' and `pat' with
 	ATTRIBUTE_UNUSED.
	* scan-decls.c: Include scan.h.
	* scan.h (recognized_function, recognized_extern): Add prototypes.
	* stmt.c: Include output.h.
	* toplev.c (error_for_asm, warning_for_asm): Remove prototypes.
	(output_lang_identify): Hide prototype and definition.
	(float_signal): Mark parameter `signo' with ATTRIBUTE_UNUSED.
	(pipe_closed): Likewise.
	* toplev.h (count_error, strip_off_ending, error_for_asm,
 	warning_for_asm): Add prototypes.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@19712 138bc75d-0d04-0410-961f-82ee72b054a4

	* objc/objc-act.c (lang_print_xnode): Likewise.
	* print-tree.c (print_node): Call it
	* com.c (lang_print_xnode): New function.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@18789 138bc75d-0d04-0410-961f-82ee72b054a4

        * Makefile.in (alias.o, bitmap.o, c-aux-info.o, c-common.o,
        c-decl.o, c-iterate.o, c-lang.o, c-lex.o, c-pragma.o, c-typeck.o,
        caller-save.o, calls.o, collect2.o, combine.o, cse.o, dbxout.o,
        dwarf2out.o, dwarfout.o, emit-rtl.o, except.o, explow.o, expmed.o,
        expr.o, final.o, flow.o, function.o, getpwd.o, global.o,
        integrate.o, jump.o, local-alloc.o, loop.o, optabs.o, pexecute.o,
        prefix.o, print-rtl.o, print-tree.o, profile.o, real.o, recog.o,
        reg-stack.o, regclass.o, regmove.o, reload.o, reload1.o, reorg.o,
        rtl.o, rtlanal.o, sdbout.o, stmt.o, stor-layout.o, stupid.o,
        tlink.o, toplev.o, tree.o, unroll.o, varasm.o, xcoffout.o): Depend
        on system.h.
        * alias.c, bitmap.c, c-aux-info.c, c-common.c, c-decl.c,
        c-iterate.c, c-lang.c, c-lex.c, c-pragma.c, c-typeck.c,
        caller-save.c, calls.c, collect2.c, combine.c, cse.c, dbxout.c,
        dwarf2out.c, dwarfout.c, emit-rtl.c, except.c, explow.c, expmed.c,
        expr.c, final.c, flow.c, function.c, gcc.c, getpwd.c, global.c,
        integrate.c, jump.c, local-alloc.c, loop.c, optabs.c, pexecute.c,
        prefix.c, print-rtl.c, print-tree.c, profile.c, real.c, recog.c,
        reg-stack.c, regclass.c, regmove.c, reload.c, reload1.c, reorg.c,
        rtl.c, rtlanal.c, sched.c, sdbout.c, stmt.c, stor-layout.c,
        stupid.c, tlink.c, toplev.c, tree.c, unroll.c, varasm.c,
        xcoffout.c: Include system.h.  Organize include ordering so
        that stdarg/varargs comes before other system headers.  Remove
        spurious casts of functions assured of a prototype in system.h.


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        * c-lang.c (finish_file): Wrap variable `void_list_node' with macro
        test !ASM_OUTPUT_CONSTRUCTOR || !ASM_OUTPUT_DESTRUCTOR.
        * calls.c (emit_call_1): Wrap variable `already_popped' with macro
        test !ACCUMULATE_OUTGOING_ARGS.
        * collect2.c (write_c_file_glob): Wrap function definition in
        macro test !LD_INIT_SWITCH.
        * combine.c (try_combine): Wrap variables `cc_use' and
        `compare_mode' in macro test EXTRA_CC_MODES.
        * cpplib.c (do_ident): Remove unused variable `len'.
        (skip_if_group): Remove unused variables `at_beg_of_line' and
        `after_ident'.
        (cpp_get_token): Remove unused variable `dummy'.
        * dbxout.c (scope_labelno): Move static variable definition inside
        the one function scope where it is used.
        (dbxout_function_end): Wrap prototype and definition in
        macro test !NO_DBX_FUNCTION_END.
        * dwarf2out.c (add_subscript_info): Wrap variable `dimension_number'
        in macro test !MIPS_DEBUGGING_INFO.
        * expr.c (expand_builtin_setjmp): Move declaration of variable `i'
        into the scope where it is used.  Wrap empty else-statement body
        in braces.
        * fix-header.c: Fix typo in comment.
        (inf_skip_spaces): Cast results of INF_UNGET to (void).
        (check_protection, main): Likewise.
        * flow.c (find_basic_blocks_1): Remove dangling comment text.
        * function.c (contains): Wrap prototype and definition in macro
        test HAVE_prologue || HAVE_epilogue.
        (fixup_var_refs_1): Remove unused variable `width'.
        * gen-protos.c (main): Remove unused variable `optr'.
        * haifa-sched.c (debug_control_flow): Remove unused variable `j'.
        * libgcc2.c (__udiv_w_sdiv): Provide dummy return value of 0.
        (__sjpopnthrow): Remove unused variable `jmpbuf'.
        (__throw): Remove unused variable `val'.
        * protoize.c: Check for a previously existing definition before
        defining *_OK macros.
        * scan-decls.c (scan_decls): Remove unused variable `old_written'.


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	static_dtors.
	* calls.c (expand_call): Bracket declaration of 'rtx_before_call',
	'old_stack_arg_under_construction'
	(emit_library_call): Bracket declaration of 'upper_bound',
	'lower_bound', 'i', 'reg_parm_stack_space'
	(emit_library_call_value): Likewise.
	(store_one_arg):
	* collect2.c: include <unistd.h> when appropriate.
	Bracket declaration of 'exportf' and 'full_real_ld_suffix'.
	* emit-rtl.c (prev_cc0_setter): Remove unused variable 'link'.
	* explow.c (plus_constant_for_output_wide): Remove unused variable
	'code'.
	(memory_address): Remove unused variable 'orig_x'.
	* genattrtab.c (make_canonical): Remove unreferenced label 'cond:'.
	(write_const_num_delay_slots): Remove unused variable 'i'.
	* genopinit.c (main): Remove unused variables 'dummy', 'insn_ptr'.
	(gen_insn): Remove unused variable 'obstack_ptr'.
        * libgcc2.c (__bb_exit_func): Remove unused variables 'ret',
        'j', 'tmp', 'i'.
	(__bb_exit_trace_func): Remove unused variable 'e'.
	* optabs.c (expand_binop): remove unused variables 'lhs', 'rhs',
	'funexp'.
	(expand_unop): Remove unused variable 'funexp'.
	(expand_complex_abs): Remove unused variable 'funexp'.
	(init_optabs): Bracket declaration of 'j'.
	(init_complex_libfuncs): Deleted.  Dead static function.
	* profile.c (branch_prob): Remove unused variables 'insn', 'dest'.
	* reg-stack.c: Fix typo in proto for 'get_asm_operand_lengths'
	(reg_to_stack): 'initialized', 'before_function_beg'
	explictly type as ints instead of defaulting.
	(emit_swap_insn): Remove unused variable 'i2'.
	(compare_for_stack_reg): Remove unused variable 'src_note'.
	* rtlanal.c (computed_jump_p): Remove unused variable 'computed_jump'.
	* sched.c (actual_hazard): Bracket declaration of 'this_cost'.
	* stmt.c (add_case_node): Add parens for assignment used as truth.
	(all_cases_count):  Remove unused variable 'count_high'.
	(mark_seen_cases): Remove unused variable 'i'.
	(check_for_full_enumeration_handling): Remove unused variable 't'.
	Bracket declaration of  'all_values', 'l'.
	* tlink.c: Include <stdlib.h>, <unistd.h>, <string.h>/<strings.h>.
	* varasm.c (assemble_string): Remove unused variable 'i'.
	(immed_double_const): Remove unused variable 'in_current_obstack'.
	(immed_real_const_1): Likewise.
	(output_constant_pool): Remove unreferenced label 'done'.
	(output_constant): Remove unused variable 'x'.
        * i386/i386.h (ENCODE_SECTION_INFO): TREE_PUBLIC is an int, not
        a string.
        * i386/sco5.h (ASM_OUTPUT_ASCII): Add parens for assignment used
        as truth.


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	change and make the undecided return value from 2 to -1 to avoid
	confusion with the values used by comptypes.


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        (incompatible) rather than 2 (similar enough) as the default.
        This was an inadvertent change in the Objective-C merge.


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	build_objc_string): New functions.


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