message: COMP: undefine OF to avoid warning
  Conflicts with previous definition in ITK_DIR/Modules/ThirdParty/ZLIB/src/itkzlib/zconf.h
diff: #define LE ROWTYPE_LE
  #define GE ROWTYPE_GE
  #define EQ ROWTYPE_EQ
  +#ifdef OF
  +# undef OF
  +#endif
  #define OF ROWTYPE_OF
  /* MIP constraint classes */
  