GIFBITS            42 ext/gd/libgd/gd_gif_out.c #define maxbits GIFBITS
GIFBITS            45 ext/gd/libgd/gd_gif_out.c #define maxmaxcode ((code_int)1 << GIFBITS)
GIFBITS           470 ext/gd/libgd/gd_gif_out.c #define de_stack               ((char_type*)&tab_suffixof((code_int)1<<GIFBITS))