along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
+
+#include "math/group.h"
+
#include <stdlib.h>
-#include <libpspp/compiler.h>
-#include <libpspp/hash.h>
-#include "group.h"
-#include "group-proc.h"
-#include <libpspp/str.h>
-#include <data/variable.h>
-#include <libpspp/misc.h>
-
-#include "xalloc.h"
+
+#include "data/variable.h"
+#include "libpspp/compiler.h"
+#include "libpspp/hash.h"
+#include "libpspp/misc.h"
+#include "libpspp/str.h"
+#include "math/group-proc.h"
+
+#include "gl/xalloc.h"
void
free_group (struct group_statistics *v, void *aux UNUSED)