Fix implicit declaration of kbd_on_hold_p

* keyboard.c: Include "process.h"

src/ChangeLog

@@ -1,3 +1,7 @@
+2011-08-19  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* keyboard.c: Include "process.h"
+
 2011-07-28  Eli Zaretskii  <eliz@gnu.org>
 
 	* xfaces.c (update_face_from_frame_parameter): Move out of

src/keyboard.c

@@ -42,6 +42,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include "puresize.h"
 #include "systime.h"
 #include "atimer.h"
+#include "process.h"
 #include <errno.h>
 
 #ifdef HAVE_GTK_AND_PTHREAD