Fix FTBFS with gcc 15. This resolves issue 97

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 1feaed7cc0)

ksim/monitors/lm_sensors/NVCtrl.c

@@ -38,8 +38,8 @@ static const char *nvctrl_extension_name = NV_CONTROL_NAME;
 #define XNVCTRLSimpleCheckExtension(dpy,i) \
   XextSimpleCheckExtension (dpy, i, nvctrl_extension_name)
 
-static int close_display();
-static Bool wire_to_event();
+static int close_display(Display*, XExtCodes*);
+static Bool wire_to_event(Display*, XEvent*, xEvent*);
 static const XExtensionHooks nvctrl_extension_hooks = {
     NULL,                               /* create_gc */
     NULL,                               /* copy_gc */