Warnings removal

[Marc Espie <espie at tetto dot liafa dot jussieu dot fr>]

Mostly a no-brainer, just add prototypes and constify a few
char * to remove warnings.

The only one that may need some further patches is libgcc2.c.

I believe that most of the declarations in libgcc2.c should be
digged out of the #ifdef where they live.
Right now, that mammoth file defines lots of functions, but there
is no cross-checking, like __terminate proves.

For gcc:

Tue Aug 31 14:44:33 CEST 1999	Marc Espie <espie@cvs.openbsd.org>
	* config/i386/i386.c (ix86_cpu_string, ix86_arch_string,
	i386_reg_alloc_order, i386_regparm_string, i386_align_loops_string,
	i386_align_jump_strings, i386_preferred_stack_boundary_string,
	i386_branch_cost_string, i386_align_funcs_string):  Constify.

	* config/i386/i386.h (ix86_cpu_string, ix86_arch_string,
	i386_reg_alloc_order, i386_regparm_string, i386_align_loops_string,
	i386_align_jump_strings, i386_preferred_stack_boundary_string,
	i386_branch_cost_string, i386_align_funcs_string):  Likewise.
	(optimization_options, arithmetic_comparison_operator,
	ix86_logical_operator, asm_output_function_prefix, ix86_expand_prologue,
	load_pic_register, ix86_compute_frame_size, ix86_expand_epilogue,
	legitimate_pic_address_disp_p, x86_adjust_cost):  Declare.
	(OPTIMIZATION_OPTIONS):  Reformat.

	* final.c (output_addr_const):  Replace fprintf with fputs.

	* alias.c (non_local_reference_p):  Constify.

	* libgcc2.c (__terminate):  Prototype.

For libiberty:
Tue Aug 31 14:44:33 CEST 1999	Marc Espie <espie@cvs.openbsd.org>
	* cplus-dem.c (main):  Constify.

--- gcc/config/i386/i386.c.orig	Tue Aug 31 16:19:21 1999
+++ gcc/config/i386/i386.c	Tue Aug 31 14:37:56 1999
@@ -182,15 +182,15 @@ enum processor_type ix86_cpu;
 int ix86_arch;
 
 /* Strings to hold which cpu and instruction set architecture  to use.  */
-char *ix86_cpu_string;		/* for -mcpu=<xxx> */
-char *ix86_arch_string;		/* for -march=<xxx> */
+const char *ix86_cpu_string;		/* for -mcpu=<xxx> */
+const char *ix86_arch_string;		/* for -march=<xxx> */
 
 /* Register allocation order */
-char *i386_reg_alloc_order;
+const char *i386_reg_alloc_order;
 static char regs_allocated[FIRST_PSEUDO_REGISTER];
 
 /* # of registers to use to pass arguments. */
-char *i386_regparm_string;
+const char *i386_regparm_string;
 
 /* i386_regparm_string as a number */
 int i386_regparm;
@@ -198,24 +198,24 @@ int i386_regparm;
 /* Alignment to use for loops and jumps:  */
 
 /* Power of two alignment for loops. */
-char *i386_align_loops_string;
+const char *i386_align_loops_string;
 
 /* Power of two alignment for non-loop jumps. */
-char *i386_align_jumps_string;
+const char *i386_align_jumps_string;
 
 /* Power of two alignment for stack boundary in bytes.  */
-char *i386_preferred_stack_boundary_string;
+const char *i386_preferred_stack_boundary_string;
 
 /* Preferred alignment for stack boundary in bits.  */
 int i386_preferred_stack_boundary;
 
 /* Values 1-5: see jump.c */
 int i386_branch_cost;
-char *i386_branch_cost_string;
+const char *i386_branch_cost_string;
 
 /* Power of two alignment for functions. */
 int i386_align_funcs;
-char *i386_align_funcs_string;
+const char *i386_align_funcs_string;
 
 /* Power of two alignment for loops. */
 int i386_align_loops;
--- gcc/config/i386/i386.h.orig	Tue Aug 31 16:19:14 1999
+++ gcc/config/i386/i386.h	Tue Aug 31 17:13:41 1999
@@ -286,7 +286,7 @@ extern int ix86_arch;
 #define SUBTARGET_OPTIONS
 
 /* Define this to change the optimizations performed by default.  */
-#define OPTIMIZATION_OPTIONS(LEVEL,SIZE) optimization_options(LEVEL,SIZE)
+#define OPTIMIZATION_OPTIONS(LEVEL,SIZE) optimization_options (LEVEL,SIZE)
 
 /* Specs for the compiler proper */
 
@@ -2698,6 +2698,7 @@ do {									\
 /* Functions in i386.c */
 extern void override_options ();
 extern void order_regs_for_local_alloc ();
+extern void optimization_options ();
 extern char *output_strlen_unroll ();
 extern struct rtx_def *i386_sext16_if_const ();
 extern int i386_aligned_p ();
@@ -2719,15 +2720,23 @@ extern char *output_move_const_single ()
 extern int symbolic_operand ();
 extern int call_insn_operand ();
 extern int expander_call_insn_operand ();
+extern int arithmetic_comparison_operator ();
+extern int ix86_logical_operator ();
 extern int symbolic_reference_mentioned_p ();
 extern int ix86_expand_binary_operator ();
 extern int ix86_binary_operator_ok ();
 extern int ix86_expand_unary_operator ();
 extern int ix86_unary_operator_ok ();
+extern void asm_output_function_prefix ();
 extern void emit_pic_move ();
 extern void function_prologue ();
+extern void ix86_expand_prologue ();
+extern void load_pic_register ();
+extern HOST_WIDE_INT ix86_compute_frame_size ();
 extern int simple_386_epilogue ();
 extern void function_epilogue ();
+extern void ix86_expand_epilogue ();
+extern int legitimate_pic_address_disp_p ();
 extern int legitimate_address_p ();
 extern struct rtx_def *legitimize_pic_address ();
 extern struct rtx_def *legitimize_address ();
@@ -2762,6 +2771,7 @@ extern char *output_int_conditional_move
 extern char *output_fp_conditional_move ();
 extern int ix86_can_use_return_insn_p ();
 extern int small_shift_operand ();
+extern int x86_adjust_cost ();
 extern char *output_ashl ();
 extern int memory_address_info ();
 
@@ -2771,15 +2781,16 @@ extern void rewrite_address ();
 #endif
 
 /* Variables in i386.c */
-extern char *ix86_cpu_string;			/* for -mcpu=<xxx> */
-extern char *ix86_arch_string;			/* for -march=<xxx> */
-extern char *i386_reg_alloc_order;		/* register allocation order */
-extern char *i386_regparm_string;		/* # registers to use to pass args */
-extern char *i386_align_loops_string;		/* power of two alignment for loops */
-extern char *i386_align_jumps_string;		/* power of two alignment for non-loop jumps */
-extern char *i386_align_funcs_string;		/* power of two alignment for functions */
-extern char *i386_preferred_stack_boundary_string;/* power of two alignment for stack boundary */
-extern char *i386_branch_cost_string;		/* values 1-5: see jump.c */
+extern const char *ix86_cpu_string;		/* for -mcpu=<xxx> */
+extern const char *ix86_arch_string;		/* for -march=<xxx> */
+extern const char *i386_reg_alloc_order;	/* register allocation order */
+extern const char *i386_regparm_string;		/* # registers to use to pass args */
+extern const char *i386_align_loops_string;	/* power of two alignment for loops */
+extern const char *i386_align_jumps_string;	/* power of two alignment for non-loop jumps */
+extern const char *i386_align_funcs_string;	/* power of two alignment for functions */
+extern const char *i386_preferred_stack_boundary_string;
+						/* power of two alignment for stack boundary */
+extern const char *i386_branch_cost_string;	/* values 1-5: see jump.c */
 extern int i386_regparm;			/* i386_regparm_string as a number */
 extern int i386_align_loops;			/* power of two alignment for loops */
 extern int i386_align_jumps;			/* power of two alignment for non-loop jumps */
--- gcc/final.c.orig	Tue Aug 31 16:18:49 1999
+++ gcc/final.c	Tue Aug 31 14:43:48 1999
@@ -3671,9 +3671,9 @@ output_addr_const (file, x)
       if (GET_CODE (XEXP (x, 1)) == CONST_INT
 	  && INTVAL (XEXP (x, 1)) < 0)
 	{
-	  fprintf (file, ASM_OPEN_PAREN);
+	  fputs (ASM_OPEN_PAREN, file);
 	  output_addr_const (file, XEXP (x, 1));
-	  fprintf (file, ASM_CLOSE_PAREN);
+	  fputs (ASM_CLOSE_PAREN, file);
 	}
       else
 	output_addr_const (file, XEXP (x, 1));
--- gcc/alias.c.orig	Tue Aug 31 16:45:26 1999
+++ gcc/alias.c	Tue Aug 31 16:47:26 1999
@@ -1431,7 +1431,7 @@ nonlocal_reference_p (x)
   /* Recursively scan the operands of this expression.  */
 
   {
-    register char *fmt = GET_RTX_FORMAT (code);
+    register const char *fmt = GET_RTX_FORMAT (code);
     register int i;
     
     for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
--- gcc/libgcc2.c.orig	Tue Aug 31 17:05:00 1999
+++ gcc/libgcc2.c	Tue Aug 31 17:09:44 1999
@@ -138,6 +138,8 @@ typedef union
   DItype ll;
 } DIunion;
 
+extern void __terminate (void);
+
 #if (defined (L_udivmoddi4) || defined (L_muldi3) || defined (L_udiv_w_sdiv)\
      || defined (L_divdi3) || defined (L_udivdi3) \
      || defined (L_moddi3) || defined (L_umoddi3))
--- libiberty/cplus-dem.c.orig	Tue Aug 31 17:30:43 1999
+++ libiberty/cplus-dem.c	Tue Aug 31 17:30:52 1999
@@ -4451,7 +4451,7 @@ main (argc, argv)
 {
   char *result;
   int c;
-  char *valid_symbols;
+  const char *valid_symbols;
 
   program_name = argv[0];