*** pico/os_unix.c.orig	Fri Sep 20 13:43:41 1996
--- pico/os_unix.c	Fri Sep 20 13:44:43 1996
***************
*** 1527,1533 ****
  #endif
      extern int  sys_nerr;
  
!     return((err >= 0 && err < sys_nerr) ? sys_errlist[err] : NULL);
  }
  
  
--- 1527,1533 ----
  #endif
      extern int  sys_nerr;
  
!     return(((err >= 0) && (err < sys_nerr)) ? (char*)sys_errlist[err] : NULL);
  }