fixed broken --disable-x11 build

git-svn-id: svn+ssh://svn.code.sf.net/p/spacenav/code/trunk/spacenavd@94 ef983eb1-d774-4af8-acfd-baaf7b16a646

src/proto_x11.c

@@ -17,6 +17,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "config.h"
+
+#ifdef USE_X11
 #include <stdio.h>
 #include <stdlib.h>
 #include "proto_x11.h"
@@ -313,3 +315,6 @@ static int catch_badwin(Display *dpy, XErrorEvent *err)
 	return 0;
 }
 
+#else
+int spacenavd_proto_x11_shut_up_empty_source_warning;
+#endif	/* USE_X11 */

src/spnavd.c

@@ -28,7 +28,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "dev.h"
 #include "client.h"
 #include "proto_unix.h"
+#ifdef USE_X11
 #include "proto_x11.h"
+#endif
 
 static void cleanup(void);
 static void daemonize(void);

src/xdetect_linux.c

@@ -17,6 +17,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "config.h"
+
+#ifdef USE_X11
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -145,3 +147,7 @@ int handle_xdet_events(fd_set *rset)
 
 	return -1;
 }
+
+#else
+int spacenavd_xdetect_linux_shut_up_empty_source_warning;
+#endif	/* USE_X11 */