Constants
VERSION = rb_str_new2(RUBY_ZLIB_VERSION)
ZLIB_VERSION = rb_str_new2(ZLIB_VERSION)
BINARY = INT2FIX(Z_BINARY)
ASCII = INT2FIX(Z_ASCII)
UNKNOWN = INT2FIX(Z_UNKNOWN)
NO_COMPRESSION = INT2FIX(Z_NO_COMPRESSION)
BEST_SPEED = INT2FIX(Z_BEST_SPEED)
BEST_COMPRESSION = INT2FIX(Z_BEST_COMPRESSION)
DEFAULT_COMPRESSION = INT2FIX(Z_DEFAULT_COMPRESSION)
FILTERED = INT2FIX(Z_FILTERED)
HUFFMAN_ONLY = INT2FIX(Z_HUFFMAN_ONLY)
DEFAULT_STRATEGY = INT2FIX(Z_DEFAULT_STRATEGY)
MAX_WBITS = INT2FIX(MAX_WBITS)
DEF_MEM_LEVEL = INT2FIX(DEF_MEM_LEVEL)
MAX_MEM_LEVEL = INT2FIX(MAX_MEM_LEVEL)
NO_FLUSH = INT2FIX(Z_NO_FLUSH)
SYNC_FLUSH = INT2FIX(Z_SYNC_FLUSH)
FULL_FLUSH = INT2FIX(Z_FULL_FLUSH)
FINISH = INT2FIX(Z_FINISH)
OS_CODE = INT2FIX(OS_CODE)
OS_MSDOS = INT2FIX(OS_MSDOS)
OS_AMIGA = INT2FIX(OS_AMIGA)
OS_VMS = INT2FIX(OS_VMS)
OS_UNIX = INT2FIX(OS_UNIX)
OS_ATARI = INT2FIX(OS_ATARI)
OS_OS2 = INT2FIX(OS_OS2)
OS_MACOS = INT2FIX(OS_MACOS)
OS_TOPS20 = INT2FIX(OS_TOPS20)
OS_WIN32 = INT2FIX(OS_WIN32)
OS_VMCMS = INT2FIX(OS_VMCMS)
OS_ZSYSTEM = INT2FIX(OS_ZSYSTEM)
OS_CPM = INT2FIX(OS_CPM)
OS_QDOS = INT2FIX(OS_QDOS)
OS_RISCOS = INT2FIX(OS_RISCOS)
OS_UNKNOWN = INT2FIX(OS_UNKNOWN)