DEF_MEM_LEVEL      24 ext/zlib/zlib.c #ifndef DEF_MEM_LEVEL
DEF_MEM_LEVEL    1096 ext/zlib/zlib.c #define ARG_MEMLEVEL(val)  FIXNUMARG((val), DEF_MEM_LEVEL)
DEF_MEM_LEVEL    2765 ext/zlib/zlib.c 		       -MAX_WBITS, DEF_MEM_LEVEL, ARG_STRATEGY(strategy));
DEF_MEM_LEVEL    3504 ext/zlib/zlib.c     rb_define_const(mZlib, "DEF_MEM_LEVEL", INT2FIX(DEF_MEM_LEVEL));