diff -cr ..\perl5os2.patch\perl5.001m.andy/ext/POSIX/POSIX.xs ./ext/POSIX/POSIX.xs
*** ../perl5os2.patch/perl5.001m.andy/ext/POSIX/POSIX.xs	Tue May 23 11:54:26 1995
--- ./ext/POSIX/POSIX.xs	Thu Sep 28 00:00:16 1995
***************
*** 81,86 ****
--- 81,90 ----
  /* Possibly needed prototypes */
  char *cuserid _((char *));
  
+ #ifndef HAS_MKFIFO
+ #define mkfifo(a,b) not_here("mkfifo")
+ #endif
+ 
  #ifndef HAS_CUSERID
  #define cuserid(a) (char *) not_here("cuserid")
  #endif