typedef long time_t; /* time in sec since 1 Jan 1970 0000 GMT */
#endif
+typedef unsigned char u_char;
+typedef unsigned short u_short;
+typedef unsigned int u_int;
+typedef unsigned long u_long;
+
+/* system V compatibility: */
+typedef unsigned int uint;
+typedef unsigned short ushort;
+typedef unsigned char uchar_t;
+typedef short cnt_t;
+typedef long paddr_t;
+typedef long key_t;
+
/* Types used in disk, inode, etc. data structures. */
typedef short dev_t; /* holds (major|minor) device pair */
typedef char gid_t; /* group id */