*** pth.h.in.ORIG	Tue Oct  9 12:55:13 2007
--- pth.h.in	Tue Oct  9 12:55:57 2007
***************
*** 90,96 ****
--- 90,100 ----
      /* check if the user requests a bigger FD_SETSIZE than we can handle */
  #if defined(FD_SETSIZE)
  #if FD_SETSIZE > @PTH_FDSETSIZE@
+ #ifdef _AIX
+ #define FD_SETSIZE 1024
+ #else
  #error "FD_SETSIZE is larger than what GNU Pth can handle."
+ #endif
  #endif
  #endif