user: implement mlibc as the libc, finally.

It's finally done..

Signed-off-by: kaguya <vpshinomiya@protonmail.com>

user/include/mlibc/abis/aero/time.h

@@ -0,0 +1,15 @@
+#ifndef _ABIBITS_TIME_H
+#define _ABIBITS_TIME_H
+
+#include <bits/posix/timeval.h>
+
+struct itimerval {
+	struct timeval it_interval;	/* Interval for periodic timer */
+	struct timeval it_value;	/* Time until next expiration */
+};
+
+#define ITIMER_REAL	0
+#define ITIMER_VIRTUAL	1
+#define ITIMER_PROF	2
+
+#endif /* _ABIBITS_TIME_H */