Description: Fix build with GCC-15
Author: Omar Zagonel El Laden <omarzladen@gmail.com>
Bug-Debian: https://bugs.debian.org/1098119
Reviewed-by: Daniel Lenharo de Souza <lenharo@debian.org>
Last-Update: 2025-11-08

--- xarclock-1.0.orig/ARClock.c
+++ xarclock-1.0/ARClock.c
@@ -61,9 +61,9 @@ SOFTWARE.
 #endif
 
 #ifdef X_NOT_STDC_ENV
-extern struct tm *localtime();
+extern struct tm *localtime(Time_t *);
 #define Time_t long
-extern Time_t time ();
+extern Time_t time (Time_t *);
 extern double round();
 #else
 #include <time.h>
@@ -74,10 +74,14 @@ extern double round();
 #include <X11/extensions/XKBbells.h>
 #endif
 
-static void clock_tic(), DrawHand(), DrawSecond(), SetSeg(), DrawClockFace();
-static void erase_hands();
+static void clock_tic(XtPointer, XtIntervalId *);
+static void DrawHand(ClockWidget, Dimension, Dimension, int);
+static void DrawSecond(ClockWidget, Dimension, Dimension, Dimension, int);
+static void SetSeg(ClockWidget, int, int, int, int);
+static void DrawClockFace(ClockWidget);
+static void erase_hands(ClockWidget, struct tm *);
 static int iround(double x);
-	
+
 /* Private Definitions */
 
 #define VERTICES_IN_HANDS	6	/* to draw triangle */
@@ -144,8 +148,12 @@ static XtResource resources[] = {
 #undef goffset
 
 static void ClassInitialize();
-static void Initialize(), Realize(), Destroy(), Resize(), Redisplay();
-static Boolean SetValues();
+static void Initialize(Widget, Widget, ArgList, Cardinal *);
+static void Realize(Widget, XtValueMask*, XSetWindowAttributes*);
+static void Destroy(Widget);
+static void Resize(Widget);
+static void Redisplay(Widget, XEvent *, Region);
+static Boolean SetValues(Widget, Widget, Widget, ArgList, Cardinal *);
 
 ClockClassRec clockClassRec = {
     { /* core fields */
@@ -370,8 +378,8 @@ static void clock_tic(client_data, id)
  * Jaime Garcia Ghirelli: */
   register int i, j;
   double angle, x, y;
-  double cos();
-  double sin();
+  double cos(double);
+  double sin(double);
   static String arabic_roman_numbers[]=
     { "9", "10", "11", "12", "1", "2", "3", "4", "5", "6", "7", "8",
 	"3", "2", "1", "12", "11", "10", "9", "8", "7", "6", "5", "4",
--- xarclock-1.0.orig/xarclock.c
+++ xarclock-1.0/xarclock.c
@@ -47,7 +47,7 @@ in this Software without prior written a
 #include <X11/extensions/XKBbells.h>
 #endif
 
-extern void exit();
+extern void exit(int);
 
 /* Command line options table.  Only resources are entered here...there is a
    pass over the remaining options after XtParseCommand is let loose. */
@@ -73,7 +73,7 @@ static XrmOptionDescRec options[] = {
 
 };
 
-static void quit();
+static void quit(Widget, XEvent *, String*, Cardinal *);
 static XtActionsRec xclock_actions[] = {
     { "quit",	quit },
 };