../../exec/hashexec.c:55:26: error: expected ';' at end of declaration
  file_t user_fd (int fd)
                         ^
                         ;
../../exec/hashexec.c:71:66: error: expected ';' at end of declaration
  error_t user_port (int which, error_t (*operate) (mach_port_t))
                                                                 ^
                                                                 ;
../../exec/hashexec.c:134:3: error: use of undeclared identifier 'page'
  page = map (e, 0, 2);
  ^
../../exec/hashexec.c:136:8: error: use of undeclared identifier 'page'
  if (!page)
       ^
../../exec/hashexec.c:144:7: error: use of undeclared identifier 'page'
  if (page[0] != '#' || page[1] != '!')
      ^
../../exec/hashexec.c:144:25: error: use of undeclared identifier 'page'
  if (page[0] != '#' || page[1] != '!')
                        ^
../../exec/hashexec.c:154:28: error: use of undeclared identifier 'page'
  p = memccpy (interp_buf, page + 2, '\n',
                           ^
../../exec/hashexec.c:206:3: error: use of undeclared identifier 'user_crdir'; did you mean 'setcrdir'?
  user_crdir = user_cwdir = MACH_PORT_NULL;
  ^~~~~~~~~~
  setcrdir
/usr/include/hurd.h:162:31: note: 'setcrdir' declared here
extern int setcwdir (file_t), setcrdir (file_t);
                              ^
../../exec/hashexec.c:206:16: error: use of undeclared identifier 'user_cwdir'; did you mean 'setcwdir'?
  user_crdir = user_cwdir = MACH_PORT_NULL;
               ^~~~~~~~~~
               setcwdir
/usr/include/hurd.h:162:12: note: 'setcwdir' declared here
extern int setcwdir (file_t), setcrdir (file_t);
           ^
../../exec/hashexec.c:206:27: error: non-object type 'int (file_t)' is not assignable
  user_crdir = user_cwdir = MACH_PORT_NULL;
               ~~~~~~~~~~ ^
../../exec/hashexec.c:217:37: error: expected ';' at end of declaration
      void fault_handler (int signo)
                                    ^
                                    ;
../../exec/hashexec.c:409:7: error: use of undeclared identifier 'user_crdir'; did you mean 'setcrdir'?
  if (user_crdir != MACH_PORT_NULL)
      ^~~~~~~~~~
      setcrdir
/usr/include/hurd.h:162:31: note: 'setcrdir' declared here
extern int setcwdir (file_t), setcrdir (file_t);
                              ^
../../exec/hashexec.c:410:46: error: use of undeclared identifier 'user_crdir'; did you mean 'setcrdir'?
    mach_port_deallocate (mach_task_self (), user_crdir);
                                             ^~~~~~~~~~
                                             setcrdir
/usr/include/hurd.h:162:31: note: 'setcrdir' declared here
extern int setcwdir (file_t), setcrdir (file_t);
                              ^
../../exec/hashexec.c:411:7: error: use of undeclared identifier 'user_cwdir'; did you mean 'setcwdir'?
  if (user_cwdir != MACH_PORT_NULL)
      ^~~~~~~~~~
      setcwdir
/usr/include/hurd.h:162:12: note: 'setcwdir' declared here
extern int setcwdir (file_t), setcrdir (file_t);
           ^
../../exec/hashexec.c:412:46: error: use of undeclared identifier 'user_cwdir'; did you mean 'setcwdir'?
    mach_port_deallocate (mach_task_self (), user_cwdir);
                                             ^~~~~~~~~~
                                             setcwdir
/usr/include/hurd.h:162:12: note: 'setcwdir' declared here
extern int setcwdir (file_t), setcrdir (file_t);
           ^
15 errors generated.