madler/zlib — pull request #32 by tofutim (2012-12-20 20:44:18+00:00)
Title: Added TOP support to Makefile.msc

e.g., "nmake -f pathto\zlib\win32\Makefile.msc TOP=pathto\zlib"

Primarily to make it easier to support multiple Windows platforms (WinRT, etc.)