MaxGIFBits        417 coders/gif.c   #define MaxGIFTable  (1 << MaxGIFBits)
MaxGIFBits        447 coders/gif.c         if (number_bits == MaxGIFBits) \
MaxGIFBits        548 coders/gif.c         k=(int) ((int) index << (MaxGIFBits-8))+waiting_code;