message: INSTALL: MinGW instruction
diff: @@ -44,7 +44,32 @@ Install it (may require sudo):
  Installation on Windows
  -----------------------
  -To be written.
  +Only MinGW is supported for now.
  +
  +First, install MSYS2.
  +
  +Then, from "MYS2 MinGW64 32-bit" shell, install the required packages:
  +
  + pacman -S msys/make
  + pacman -S mingw32/mingw-w64-i686-toolchain
  + pacman -S mingw32/mingw-w64-i686-cmake
  + pacman -S mingw32/mingw-w64-i686-qtwebkit
  + pacman -S mingw32/mingw-w64-i686-python2
  +
  +Note: add --disable-download-timeout as an additional argument, if the
  +installation failed due to the slow server responses.
  +
  +After unpacking the source tarball or cloning the repository:
  +
  + cmake . -G "MinGW Makefiles"
  +
  +And then start the build process:
  +
  + make
  +
  +Do a quick sanity check:
  +
  + ./bin/phantomjs.exe --version
  Installation on macOS
  