Update libc implementation

libc/include/sys/stat.h

@@ -1,4 +1,18 @@
 #ifndef _SYS_STAT_H
 #define _SYS_STAT_H
 
+typedef unsigned int _dev_t;
+typedef unsigned short _ino_t;
+typedef unsigned short _mode_t;
+typedef int _off_t;
+
+#define dev_t _dev_t
+#define ino_t _ino_t
+#define mode_t _mode_t
+#define off_t _off_t
+
+int mkdir(const char *path, mode_t mode);
+int remove(const char *pathname);
+int rename(const char *oldpath, const char *newpath);
+
 #endif

libc/include/sys/time.h

@@ -0,0 +1,4 @@
+#ifndef _SYS_TIME_H
+#define _SYS_TIME_H
+
+#endif