Other encapsulations are declared in the appropriate sys*.h file. */
#ifdef ENCAPSULATE_READ
-int sys_read (int, void *, size_t);
+ssize_t sys_read (int, void *, size_t);
#endif
#if defined (ENCAPSULATE_READ) && !defined (DONT_ENCAPSULATE)
# undef read
#endif
#ifdef ENCAPSULATE_WRITE
-int sys_write (int, CONST void *, size_t);
+ssize_t sys_write (int, CONST void *, size_t);
#endif
#if defined (ENCAPSULATE_WRITE) && !defined (DONT_ENCAPSULATE)
# undef write