o Build CGAL:

  cd CGAL-3.5
  source runcmake.sh
  make -j4
  make install

o Patch OpenCSG

  cd OpenCSG-1.1.1
  patch -p1 < ../openscad/OpenCSG-MacOSX-port.patch
  patch -p1 < ../openscad/OpenCSG-Reset-Hack.patch      # Only if MDI

o Build OpenCSG

  qmake -recursive
  make
  
o Build and Deploy OpenSCAD

# Update OPENSCAD_VERSION in release-macosx.sh
# If MDI: edit openscad.pro and enable CONFIG += mdi
# FIXME: Debug vs. release flags
  cd openscad
  ./release-macosx.sh