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diff --git a/n/avr/modules/utils/utils.host.c b/n/avr/modules/utils/utils.host.c
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+/* utils.host.c */
+/* avr.utils - Utilities AVR module. {{{
+ *
+ * Copyright (C) 2005 Nicolas Schodet
+ *
+ * Robot APB Team/Efrei 2006.
+ * Web: http://assos.efrei.fr/robot/
+ * Email: robot AT efrei DOT fr
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * }}} */
+#define _GNU_SOURCE
+#include "utils.h"
+
+#include <time.h>
+#include <errno.h>
+#include <assert.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+/** Delay in seconds. */
+void
+utils_delay (double s)
+{
+ struct timespec ts;
+ assert (s > 0.0);
+ ts.tv_sec = (long int) s;
+ ts.tv_nsec = (s - (long int) s) * 1000000000l;
+ while (nanosleep (&ts, &ts) == -1 && errno == EINTR)
+ ;
+}
+
+/** Reset. */
+void
+utils_reset (void)
+{
+ execlp (program_invocation_name, program_invocation_name, 0);
+ assert_perror (errno);
+ abort ();
+}
+