xkb: xkbgeom: need to include <X11/Xdefs.h>

Using the type "Bool", which is defined in Xdefs.h, therefore this
header should be include, so we don't need to rely on it being
included indirectly by somebody else.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

xkb/xkbgeom.h

@@ -27,6 +27,8 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #ifndef _XKBGEOM_H_
 #define	_XKBGEOM_H_
 
+#include <X11/Xdefs.h>
+
 #include "xkbstr.h"
 
 typedef struct _XkbProperty {