c-lex.c: Include <stdlib.h> and <string.h>/<strings.h>.

d
	* c-lex.c: Include <stdlib.h> and <string.h>/<strings.h>.  Add
	prototype for `handle_sysv_pragma', and make it static.  Add
	parentheses around assignment used as truth value.
	* combine.c (combine_instructions): Protect variable `prev' with
	macro HAVE_cc0.
	(can_combine_p): Protect variable `link' with AUTO_INC_DEC.
	(extract_left_shift): Add parentheses around operand of &.
	(merge_outer_ops): Avoid an empty body in an else-statement.
	(gen_rtx_combine): Remove unused variable `i'.
	* sparc/gmon-sol2.c: Include <fcntl.h>.  Make return type of
        function monstartup `void'.  Likewise for internal_mcount.  Add
        `static void' prototype for moncontrol.  Reconcile sprintf format
        vs. args.
	* sparc/sparc.c: Include <stdlib.h> and <string.h>/<strings.h>.
	Make return type of function_arg_slotno explicitly `int'.
	(reg_unused_after): Add	parentheses around assignment used as
	truth value.
	(save_regs): Add explicit braces to avoid ambiguous `else'.
	(function_arg_slotno): Add parentheses around && within ||.
	(function_arg_pass_by_reference): Likewise.
	(sparc_flat_output_function_prologue): Reconcile fprintf format
	vs. args.
	* svr4.h (ASM_OUTPUT_LIMITED_STRING): Add parentheses around
	assignment used as truth value.
	* cplus-dem.c: Include <stdlib.h>.
	(demangle_signature): Avoid an empty body in an else-statement.
	(do_type): Remove unused variable `lvl'.
	* cppexp.c: Don't have <stdlib.h> depend on MULTIBYTE_CHARS.
	Include <string.h>/<strings.h>.
	(cpp_lex): Remove unused variable `namelen'.
	(cpp_lex): Explicitly declare `num_chars' as an int.
	* cpplib.c: Avoid duplicate inclusion of <stdlib.h>, include
	<unistd.h> instead.  Explicitly declare is_system_include
	returning int.
	(make_assertion): Remove unused variable `kt'.
	(cpp_expand_to_buffer): Hide variable `obuf'.
	(output_line_command): Remove unused variables, `line_end',
	`line_cmd_buf' and `len'.
	(macarg): Remove unused variable `arg_start'.
	(special_symbol): Remove unused variable `i'.  Add parentheses
	around assignment used as truth value.
	(do_include):  Remove unused variables `pcfname' and `retried',
	hide `pcf' and `pcfbuflimit'.
	(do_line): Remove unused variable `i'.
	(finclude): Hide variable `missing_newline'.
	(cpp_handle_options): Remove unused variable `j'.
	(read_token_list): Remove unused variable `eofp'.
	(cpp_error_with_line): Remove unused variable `i'.
	(cpp_warning_with_line): Likewise.
	(cpp_pedwarn_with_line): Explicitly declare `column' as int.
	(cpp_error_from_errno): Remove unused variable `i'.
	* cse.c (invalidate): Add parentheses around assignment used as
	truth value.
	(find_best_addr): Move declaration of variable `our_cost' inside
	the conditional macro where its used.
	(fold_rtx): Avoid an empty body in an if-statement.
	(cse_insn): Wrap variables  `this_insn_cc0_mode' and
	`this_insn_cc0' in macro HAVE_cc0.
	* dwarf2out.c: Include <stdlib.h> and <string.h>/<string.h>.
	(ASM_OUTPUT_DWARF_DATA8):  Reconcile format vs. args in fprintf's.
	(output_uleb128): Likewise.
	(output_sleb128): Likewise.
	(output_cfi): Likewise.
	(output_call_frame_info): Remove unused variables `j', `fde_size'
	and `fde_pad'.
	(comp_unit_has_inlines): Hide declaration as per rest of file.
	(size_of_line_prolog): Correct typo in prototype.
	(add_arange): Likewise.
	(output_aranges): Likewise.
	(add_name_and_src_coords_attributes): Likewise.
	(gen_array_type_die): Likewise.
	(gen_inlined_subroutine_die): Likewise.
	(equate_decl_number_to_die): Remove unused variable `i'.
	(print_die): Reconcile format vs. args in fprintf's.
	(print_dwarf_line_table): Likewise.
	(output_die): Likewise.
	(output_line_info): Likewise.
	(add_subscript_info): Avoid an empty body in an else-statement.
	(gen_subprogram_die): Remove unused variable `fp_loc'.
	* dwarfout.c: Explicitly declare `next_pubname_number' as int.
	Protect `ordering_attribute' prototype with USE_ORDERING_ATTRIBUTE
	macro.  Protect `src_coords_attribute' prototype with
	DWARF_DECL_COORDINATES macro.  Hide `output_entry_point_die'
	prototype as in the rest of the file.  Likewise for
	`output_pointer_type_die' and `output_reference_type_die'.  Remove
	prototype for `type_of_for_scope'.
	(output_unsigned_leb128): Reconcile format vs. args in fprintf.
	(type_attribute): Add explicit braces to avoid ambiguous `else'.
	* final.c: Include <stdlib.h> and <string.h>/<strings.h>.
	(shorten_branches): Protect declaration of tmp_length with
	SHORTEN_WITH_ADJUST_INSN_LENGTH and ADJUST_INSN_LENGTH macros.
	(profile_function): Protect declaration of `sval' and `cxt'
	variables with appropriate macros.
	(final_scan_insn): Likewise for `note' variable.  Add explicit
	braces to avoid empty body in an if-statement.
	(output_asm_insn): Move variable `i' inside macro conditional
	where it is used.  Add parentheses around assignment used as truth
	value.
	(asm_fprintf) Likewise, likewise.
	* fix-header.c (main): Remove unused variable `done'.  Protect
	declaration of `i' with FIXPROTO_IGNORE_LIST.
	* pexecute.c: Include <unistd.h>.  Prototype `my_strerror'.
	* print-rtl.c (print_inline_rtx): Explicitly declare the parameter
	`ind'.
	* profile.c: Include <string.h>/<strings.h>.
	(instrument_arcs): Remove unused variables `note', `inverted',
	`zero' and `neg_one'.
	(branch_prob): Avoid empty body in an if-statement.
	* regclass.c: Include <stdlib.h>.
	(reg_alternate_class): Explicitly declare parameter `regno'.
	* regmove.c (regmove_optimize): Remove unused variable `p'.  Add
	parentheses around assignment used as truth value.
	(find_matches):  Remove unused variables `output_operand' and
	`matching_operand'.
	(fixup_match_1): Remove statement with no effect: "if (0) ;".
	* scan.c (sstring_append): Explicitly declare `count' as int.
	(scan_string): Explicitly declare parameter `init' as int.
	* sched.c: Include <stdlib.h>.
	(BLOCKAGE_RANGE): Add parentheses around arithmetic in operand of |.
	(rank_for_schedule): Add parentheses around assignment used as
	truth value.
	(schedule_block): Likewise.
	(regno_use_in): Likewise.
	(schedule_insns): Remove unused variable `i'.
	* toplev.c: Include <stdlib.h> and <string.h>/<strings.h>.
	(v_message_with_decl): Remove unused variable `n'.
	(botch): Explicitly declare parameter `s' as char *.
	(main): Add parentheses around assignment used as truth value.
	* tree.c (make_node): Protect the variable `kind' with the
	GATHER_STATISTICS macro.
	(real_value_from_int_cst): Move variable `e' inside conditional
	macro area where it is used.
	(tree_last): Add parentheses around assignment used as truth value.
	(build1): Protect the variable `kind' with the GATHER_STATISTICS
	macro.
	(print_obstack_statistics): Reconcile format vs. args in fprintf.
	Protect variables `i', `total_nodes', and `total_bytes' with the
	GATHER_STATISTICS macro.
Lots more -W -Wall warnings disappear.

From-SVN: r17518

1 files changed, 14 insertions, 20 deletions

diff --git a/gcc/cpplib.c b/gcc/cpplib.c
index 9cfd3ac..f5ca073 100644
--- a/gcc/cpplib.c
+++ b/gcc/cpplib.c
@@ -59,8 +59,8 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 # include <limits.h>
 #endif
 
-#ifdef HAVE_STDLIB_H
-# include <stdlib.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
 #endif
 
 #ifdef HAVE_STRING_H
@@ -271,7 +271,7 @@ extern void fancy_abort ();
 #endif
 static int lookup_import ();
 static int redundant_include_p ();
-static is_system_include ();
+static int is_system_include ();
 static struct file_name_map *read_name_map ();
 static char *read_filename_string ();
 static int open_include_file ();
@@ -615,7 +615,6 @@ make_assertion (pfile, option, str)
      char *option;
      U_CHAR *str;
 {
-  struct directive *kt;
   U_CHAR *buf, *p, *q;
 
   /* Copy the entire option so we can modify it.  */
@@ -1946,7 +1945,9 @@ cpp_expand_to_buffer (pfile, buf, length)
      int length;
 {
   register cpp_buffer *ip;
+#if 0
   cpp_buffer obuf;
+#endif
   U_CHAR *limit = buf + length;
   U_CHAR *buf1;
 #if 0
@@ -2087,8 +2088,6 @@ output_line_command (pfile, conditional, file_change)
      int conditional;
      enum file_change_code file_change;
 {
-  int len;
-  char *line_cmd_buf, *line_end;
   long line, col;
   cpp_buffer *ip = CPP_BUFFER (pfile);
 
@@ -2180,7 +2179,6 @@ macarg (pfile, rest_args)
 {
   int paren = 0;
   enum cpp_token token;
-  long arg_start = CPP_WRITTEN (pfile);
   char save_put_out_comments = CPP_OPTIONS (pfile)->put_out_comments;
   CPP_OPTIONS (pfile)->put_out_comments = 0;
 
@@ -2298,7 +2296,7 @@ special_symbol (hp, pfile)
      cpp_reader *pfile;
 {
   char *buf;
-  int i, len;
+  int len;
   int true_indepth;
   cpp_buffer *ip = NULL;
   struct tm *timebuf;
@@ -2438,7 +2436,7 @@ special_symbol (hp, pfile)
 	goto oops;
       if (ip->cur[0] == 'L' && (ip->cur[1] == '\'' || ip->cur[1] == '"'))
 	goto oops;
-      if (hp = cpp_lookup (pfile, ip->cur, -1, -1))
+      if ((hp = cpp_lookup (pfile, ip->cur, -1, -1)))
 	{
 #if 0
 	  if (pcp_outfile && pcp_inside_if
@@ -3105,7 +3103,6 @@ do_include (pfile, keyword, unused1, unused2)
   int skip_dirs = (keyword->type == T_INCLUDE_NEXT);
   char *fname;		/* Dynamically allocated fname buffer */
   char *pcftry;
-  char *pcfname;
   U_CHAR *fbeg, *fend;		/* Beginning and end of fname */
   enum cpp_token token;
 
@@ -3119,12 +3116,12 @@ do_include (pfile, keyword, unused1, unused2)
 
   int f;			/* file number */
 
-  int retried = 0;		/* Have already tried macro
-				   expanding the include line */
   int angle_brackets = 0;	/* 0 for "...", 1 for <...> */
-  int pcf = -1;
   char *pcfbuf;
+#if 0
+  int pcf = -1;
   char *pcfbuflimit;
+#endif
   int pcfnum;
   f= -1;			/* JF we iz paranoid! */
 
@@ -3730,7 +3727,6 @@ do_line (pfile, keyword)
   long old_written = CPP_WRITTEN (pfile);
   enum file_change_code file_change = same_file;
   enum cpp_token token;
-  int i;
 
   token = get_directive_token (pfile);
 
@@ -5602,7 +5598,9 @@ finclude (pfile, f, fname, system_header_p, dirptr)
   long i;
   int length;
   cpp_buffer *fp;			/* For input stack frame */
+#if 0
   int missing_newline = 0;
+#endif
 
   if (fstat (f, &st) < 0)
     {
@@ -6657,7 +6655,6 @@ cpp_handle_options (pfile, argc, argv)
 	       Let's include also any that were specified earlier
 	       on the command line.  That way we can get rid of any
 	       that were passed automatically in from GCC.  */
-	    int j;
 	    opts->inhibit_predefs = 1;
 	    for (ptr = &opts->pending; *ptr != NULL; )
 	      {
@@ -7136,7 +7133,7 @@ read_token_list (pfile, error_flag)
     {
       struct arglist *temp;
       long name_written = CPP_WRITTEN (pfile);
-      int eofp = 0;  int c;
+      int c;
 
       cpp_skip_hspace (pfile);
 
@@ -7419,7 +7416,6 @@ cpp_error_with_line (pfile, line, column, msg, arg1, arg2, arg3)
      char *msg;
      char *arg1, *arg2, *arg3;
 {
-  int i;
   cpp_buffer *ip = cpp_file_buffer (pfile);
 
   cpp_print_containing_files (pfile);
@@ -7437,7 +7433,6 @@ cpp_warning_with_line (pfile, line, column, msg, arg1, arg2, arg3)
      char *msg;
      char *arg1, *arg2, *arg3;
 {
-  int i;
   cpp_buffer *ip;
 
   if (CPP_OPTIONS (pfile)->inhibit_warnings)
@@ -7459,7 +7454,7 @@ cpp_warning_with_line (pfile, line, column, msg, arg1, arg2, arg3)
 void
 cpp_pedwarn_with_line (pfile, line, column, msg, arg1, arg2, arg3)
      cpp_reader *pfile;
-     int line;
+     int line, column;
      char *msg;
      char *arg1, *arg2, *arg3;
 {
@@ -7545,7 +7540,6 @@ cpp_error_from_errno (pfile, name)
      cpp_reader *pfile;
      char *name;
 {
-  int i;
   cpp_buffer *ip = cpp_file_buffer (pfile);
 
   cpp_print_containing_files (pfile);