zlib

Install MinGW64
http://sourceforge.net/projects/tdm-gcc/files/TDM-GCC Installer

Install MSYS
http://sourceforge.net/projects/mingw-w64/files/External binary packages (Win64 hosted)/MSYS (32-bit)

Install 7-Zip

wget http://sourceforge.net/projects/sevenzip/files/7-Zip/9.20/7za920.zip

unzip 7za920.zip

mv 7za.exe /c/steven/downloads/bin/

Install Git

wget http://msysgit.googlecode.com/files/PortableGit-1.7.6-preview20110709.7z

7za x PortableGit-1.7.6-preview20110709.7z -o*

cd PortableGit-1.7.6-preview20110709

mv bin/git.exe /c/steven/downloads/bin/

Install zlib

wget http://msysgit.googlecode.com/git/src/mingw-w64/patch/zlib-config.patch

wget http://zlib.net/zlib-1.2.5.tar.gz

tar xf zlib-1.2.5.tar.gz

cd zlib-1.2.5

git apply --check fix_empty_poster.patch