src/hotspot/share/utilities/globalDefinitions_xlc.hpp

*** 84,93 ****
--- 84,94 ----
  // Most system includes on AIX would define it as an int 0 if not already defined with one
  // exception: /usr/include/dirent.h will unconditionally redefine NULL to int 0 again.
  // In this case you need to copy the following defines to a position after #include <dirent.h>
  // (see jmv_aix.h).
  #ifdef AIX
+   #include <dirent.h>
    #ifdef _LP64
      #undef NULL
      #define NULL 0L
    #else
      #ifndef NULL