Building for Win32.

Extract the taglib sources.

Add this in CMakeLists.txt:

set(ZLIB_LIBRARY "c:/devel/libraries/nwin64/lib/zlib.lib")
set(ZLIB_INCLUDE_DIR "c:/devel/libraries/nwin64/include")
set(BUILD_TESTING OFF)
set(BUILD_SHARED_LIBS ON)

Or any place you have zlib.lib stored.

Copy the shared libraries to ../lib/windows_<arch>/



