🚀 go-pugleaf

cpio 2.1 doesn't compile on a Sun 3 running 3.5 using gcc 2.3.1, because
it declares lseek in two different places -- system.h and rmt.c -- one
hardwiring `long' and the other using `off_t'.

I think it's better to use off_t in both places, so here is a diff to
system.h.

*** ./ORIG/system.h	Sat Aug 22 14:51:15 1992
--- ./system.h	Sun Nov  8 20:38:58 1992
***************
*** 42,48 ****
  #endif
  
  #ifndef _POSIX_VERSION
! long lseek ();
  #endif
  
  /* Since major is a function on SVR4, we can't use `ifndef major'.  */
--- 42,48 ----
  #endif
  
  #ifndef _POSIX_VERSION
! off_t lseek ();
  #endif
  
  /* Since major is a function on SVR4, we can't use `ifndef major'.  */