zlib 1.3.2. (zlib-1.3.2.tar.gz)
Files not required by OpenMPT have been removed.
OpenMPT specific changes:
 *  Commits
    <https://github.com/madler/zlib/commit/813dac5dcb5902ed241e9b0d38abd2d847a335a9>
    , and
    <https://github.com/madler/zlib/commit/a82e0db392178a3e05fb27bf551a6ce757a47898>
    have been applied to fix <https://github.com/madler/zlib/issues/1168>.
 *  `zconf.h` has been modified to avoid preprocessor warnings. See
    <https://github.com/madler/zlib/issues/1169>.
 *  `contrib/minizip/iowin32.c` has been modified to only use Windows 8 WinRT
    API when actually compiling for Windows 8 or later.
 *  `contrib/minizip/zip.c` has been modified to check for allocation failure. A
    similar fix has been proposed upstream:
    <https://github.com/madler/zlib/pull/566>
 *  All custom modifications are marked with /* OpenMPT */
 *  For building, premake is used to generate Visual Studio project files.
    See ../build/premake/ for details.
No further changes have been made.
