(Im)port of zlib-1.2.2
(Im)port of zlib-1.2.2

Ran configure with minix-friendly args and committed makefile. It's
a compromise to make zlib fit nicely into the current build system.


veritas-shine/minix3-rpi,danielbarter/minix_book,danielbarter/minix_book,danielbarter/minix_book,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,danielbarter/minix_book,veritas-shine/minix3-rpi,danielbarter/minix_book,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,danielbarter/minix_book,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi