* c-lang.c (finish_file): Bracket declaration of static_ctors,
	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.

From-SVN: r17901