Build on Windows

The native Windows build is complicated and error-prone. As of 2016-06 the preferred way by @koppi to build bpp for Windows is to cross-compile bpp using mxe:

cd /opt
git clone https://github.com/mxe/mxe.git
cd mxe
export PATH=`pwd`/usr/bin/:$PATH
nice make MXE_TARGETS='i686-w64-mingw32.shared' qt5  QT5_BUILD_TYPE=-debug-and-release lua luabind bullet assimp freeglut

Download and build libQGLViewer:

git clone https://github.com/GillesDebunne/libQGLViewer
cd libQGLViewer
/opt/mxe/usr/i686-w64-mingw32.shared/qt5/bin/qmake
make

As of 2016-06-20 the build process is stuck at https://github.com/GillesDebunne/libQGLViewer/issues/28

More to be written.