MaxGIFBits        550 coders/gif.c   #define MaxGIFTable  (1UL << MaxGIFBits)
MaxGIFBits        579 coders/gif.c         if (number_bits == MaxGIFBits) \
MaxGIFBits        688 coders/gif.c         k=(ssize_t) (((size_t) index << (MaxGIFBits-8))+waiting_code);