This is Sortix libz. This is not zlib. This is a fork of zlib. libz is a general purpose data compression library. The data format used by libz is described by RFC 1950 (zlib format), RFC 1951 (deflate format), and RFC 1952 (gzip format). Sortix libz is developed as part of the Sortix operating system by Jonas 'Sortie' Termansen ( sortie@maxsi.org ) and contributors. This libz has been cleaned up: Support for anything but modern Unix operating systems has been deleted. Support for 16-bit segmented platforms has been deleted. K&R function prototypes and declarations have been upgraded to ISO C ones. Mysterious work-arounds for broken toolchains and operating systems have been deleted. Questionable abstractions like local, z_const, and Z_NULL have been replaced with static, const, and NULL. Unsafe standard libr...