dix: add missing prototypes

Add missing prototype for ffs, and include headers from ffs.c.
Move PostSyntheticMotion prototype to input.h.

dix/events.c

@@ -327,7 +327,6 @@ static CARD8 criticalEvents[32] =
 
 #ifdef PANORAMIX
 static void ConfineToShape(RegionPtr shape, int *px, int *py);
-extern void PostSyntheticMotion(int x, int y, int screenNum, int time);
 static void PostNewCursor(void);
 
 #define SyntheticMotion(x, y) \

dix/ffs.c

@@ -26,6 +26,12 @@ The Open Group.
 
 */
 
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "dix.h"
+
 int
 ffs(int i)
 {

include/dix.h

@@ -701,6 +701,8 @@ extern Bool AllocateClientPrivate(
     int /*index*/,
     unsigned /*amount*/);
 
+extern int ffs(int i);
+
 /*
  *  callback manager stuff
  */

include/input.h

@@ -418,6 +418,12 @@ extern int GetProximityEvents(
     int num_valuators,
     int *valuators);
 
+extern void PostSyntheticMotion(
+    int x,
+    int y,
+    int screenNum,
+    unsigned long time);
+
 extern int GetMotionHistorySize(
     void);