mingw64-x86_64-libpng-src: PNG graphics library for Win64 toolchain (source)

    2017-01-17 20:11           0 mingw64-x86_64-libpng-1.6.28-1.src/
    2017-01-17 20:11      984536 mingw64-x86_64-libpng-1.6.28-1.src/libpng-1.6.28.tar.xz
    2017-01-17 20:11         646 mingw64-x86_64-libpng-1.6.28-1.src/mingw64-x86_64-libpng.cygport