You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+/* Definitions of these in config.h can cause
+ declaration conflicts later on between declarations for index
+ and declarations for strchr. This file doesn't use
+ index and rindex, so cancel them. */
+#undef index
+#undef rindex
#include <X11/Xatom.h>
#include <X11/IntrinsicP.h>