Convert function definitions and declarations to standard C.

* src/vm-limit.c (memory_warnings):
* src/keyboard.c (modify_event_symbol):
* src/floatfns.c (rounding_driver, ceiling2, floor2, truncate2)
(round2, emacs_rint):
* src/process.c (send_process, old_sigpipe): Convert function
definitions and declarations to standard C.

src/ChangeLog

@@ -1,5 +1,13 @@
 2010-07-05  Dan Nicolaescu  <dann@ics.uci.edu>
-            Juanma Barranquero  <lekktu@gmail.com>
+
+	* vm-limit.c (memory_warnings):
+	* keyboard.c (modify_event_symbol):
+	* floatfns.c (rounding_driver, ceiling2, floor2, truncate2)
+	(round2, emacs_rint):
+	* process.c (send_process, old_sigpipe): Convert function
+	definitions and declarations to standard C.
+
+2010-07-05  Juanma Barranquero  <lekktu@gmail.com>
 
 	* buffer.c, cm.c, eval.c, keyboard.c, process.c, term.c, vm-limit.c,
 	* xdisp.c: Convert function definitions to standard C.

src/floatfns.c

@@ -70,7 +70,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* This declaration is omitted on some systems, like Ultrix.  */
 #if !defined (HPUX) && defined (HAVE_LOGB) && !defined (logb)
-extern double logb ();
+extern double logb (double);
 #endif /* not HPUX and HAVE_LOGB and no logb macro */
 
 #if defined(DOMAIN) && defined(SING) && defined(OVERFLOW)
@@ -778,11 +778,10 @@ This is the same as the exponent of a float.  */)
 /* the rounding functions  */
 
 static Lisp_Object
-rounding_driver (arg, divisor, double_round, int_round2, name)
-     register Lisp_Object arg, divisor;
-     double (*double_round) ();
-     EMACS_INT (*int_round2) ();
-     char *name;
+rounding_driver (Lisp_Object arg, Lisp_Object divisor,
+		 double (*double_round) (double),
+		 EMACS_INT (*int_round2) (EMACS_INT, EMACS_INT),
+		 char *name)
 {
   CHECK_NUMBER_OR_FLOAT (arg);
 
@@ -832,8 +831,7 @@ rounding_driver (arg, divisor, double_round, int_round2, name)
    integer functions.  */
 
 static EMACS_INT
-ceiling2 (i1, i2)
-     EMACS_INT i1, i2;
+ceiling2 (EMACS_INT i1, EMACS_INT i2)
 {
   return (i2 < 0
 	  ? (i1 < 0  ?  ((-1 - i1) / -i2) + 1  :  - (i1 / -i2))
@@ -841,8 +839,7 @@ ceiling2 (i1, i2)
 }
 
 static EMACS_INT
-floor2 (i1, i2)
-     EMACS_INT i1, i2;
+floor2 (EMACS_INT i1, EMACS_INT i2)
 {
   return (i2 < 0
 	  ? (i1 <= 0  ?  -i1 / -i2  :  -1 - ((i1 - 1) / -i2))
@@ -850,8 +847,7 @@ floor2 (i1, i2)
 }
 
 static EMACS_INT
-truncate2 (i1, i2)
-     EMACS_INT i1, i2;
+truncate2 (EMACS_INT i1, EMACS_INT i2)
 {
   return (i2 < 0
 	  ? (i1 < 0  ?  -i1 / -i2  :  - (i1 / -i2))
@@ -859,8 +855,7 @@ truncate2 (i1, i2)
 }
 
 static EMACS_INT
-round2 (i1, i2)
-     EMACS_INT i1, i2;
+round2 (EMACS_INT i1, EMACS_INT i2)
 {
   /* The C language's division operator gives us one remainder R, but
      we want the remainder R1 on the other side of 0 if R1 is closer
@@ -880,16 +875,14 @@ round2 (i1, i2)
 #define emacs_rint rint
 #else
 static double
-emacs_rint (d)
-     double d;
+emacs_rint (double d)
 {
   return floor (d + 0.5);
 }
 #endif
 
 static double
-double_identity (d)
-     double d;
+double_identity (double d)
 {
   return d;
 }

src/keyboard.c

@@ -528,8 +528,6 @@ EMACS_TIME timer_check (int do_it_now);
 
 extern Lisp_Object Vhistory_length, Vtranslation_table_for_input;
 
-extern char *x_get_keysym_name ();
-
 static void record_menu_key (Lisp_Object c);
 static int echo_length (void);
 
@@ -611,7 +609,7 @@ Lisp_Object Venable_disabled_menus_and_buttons;
 #define READABLE_EVENTS_IGNORE_SQUEEZABLES	(1 << 2)
 
 /* Function for init_keyboard to call with no args (if nonzero).  */
-void (*keyboard_init_hook) ();
+void (*keyboard_init_hook) (void);
 
 static int read_avail_input (int);
 static void get_input_pending (int *, int);
@@ -6583,6 +6581,7 @@ modify_event_symbol (int symbol_num, unsigned int modifiers, Lisp_Object symbol_
 #ifdef HAVE_WINDOW_SYSTEM
       if (NILP (value))
 	{
+	  extern char *x_get_keysym_name (KeySym keysym);
 	  char *name = x_get_keysym_name (symbol_num);
 	  if (name)
 	    value = intern (name);

src/process.c

@@ -182,7 +182,7 @@ Lisp_Object Quser, Qgroup, Qetime, Qpcpu, Qpmem, Qtime, Qctime;
 
 #include "syswait.h"
 
-extern char *get_operating_system_release ();
+extern char *get_operating_system_release (void);
 
 /* Serial processes require termios or Windows.  */
 #if defined (HAVE_TERMIOS) || defined (WINDOWSNT)
@@ -5606,7 +5606,7 @@ send_process (volatile Lisp_Object proc, unsigned char *volatile buf,
   int rv;
   struct coding_system *coding;
   struct gcpro gcpro1;
-  SIGTYPE (*volatile old_sigpipe) ();
+  SIGTYPE (*volatile old_sigpipe) (int);
 
   GCPRO1 (object);
 
@@ -5719,7 +5719,7 @@ send_process (volatile Lisp_Object proc, unsigned char *volatile buf,
 	  while (this > 0)
 	    {
 	      int outfd = p->outfd;
-	      old_sigpipe = (SIGTYPE (*) ()) signal (SIGPIPE, send_process_trap);
+	      old_sigpipe = (SIGTYPE (*) (int)) signal (SIGPIPE, send_process_trap);
 #ifdef DATAGRAM_SOCKETS
 	      if (DATAGRAM_CHAN_P (outfd))
 		{

src/vm-limit.c

@@ -251,7 +251,7 @@ check_memory_limits (void)
 void
 memory_warnings (POINTER start, void (*warnfun) (char *))
 {
-  extern void (* __after_morecore_hook) ();     /* From gmalloc.c */
+  extern void (* __after_morecore_hook) (void);     /* From gmalloc.c */
 
   if (start)
     data_space_start = start;