os: unexport ForceClockId()

This function is only intended for DDX'es (currently just Xwayland) that
need to force using another clock. Really shouldn't be called by drivers
or extensions.

Fixes: a779fda224
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1333>
(cherry picked from commit c17c527b9a)

hw/xwayland/xwayland.c

@@ -45,6 +45,8 @@
 #include <propertyst.h>
 #include <version-config.h>
 
+#include "os/osdep.h"
+
 #include "xwayland-screen.h"
 #include "xwayland-vidmode.h"
 

include/os.h

@@ -158,10 +158,6 @@ extern _X_EXPORT void ListenOnOpenFD(int /* fd */ , int /* noxauth */ );
 
 extern _X_EXPORT Bool AddClientOnOpenFD(int /* fd */ );
 
-#ifdef MONOTONIC_CLOCK
-extern void ForceClockId(clockid_t /* forced_clockid */);
-#endif
-
 extern _X_EXPORT CARD32 GetTimeInMillis(void);
 extern _X_EXPORT CARD64 GetTimeInMicros(void);
 

os/osdep.h

@@ -249,4 +249,7 @@ int OnlyListenToOneClient(ClientPtr client);
 
 void ListenToAllClients(void);
 
+/* allow DDX to force using another clock */
+void ForceClockId(clockid_t forced_clockid);
+
 #endif                          /* _OSDEP_H_ */