*** diff/system.h.org	Tue Sep 24 14:47:08 2002
--- diff/system.h	Thu May  8 23:16:10 2003
***************
*** 38,43 ****
--- 38,49 ----
  #define VOID char
  #endif
  
+ #if defined(__SCO_VERSION__)
+ # ifndef S_ISSOCK
+ #  define S_ISSOCK S_ISNAM
+ # endif
+ #endif
+ 
  #if STAT_MACROS_BROKEN
  #undef S_ISBLK
  #undef S_ISCHR