Required LPub3D libraries on macOS

Versions: (built distribution/build from source minimum)

LDView:

• XQuartz 2.7.11.0/2.7.11.0 (for OSMesa)
  https://www.xquartz.org

• LibPNG version 1.6.35/1.6.34 or above
  http://www.libpng.org

• GL2PS version 1.4.0/1.3.5 or above
  http://geuz.org/gl2ps

• LibJPEG version 9c/8b or above
  http://www.ijg.org

• TinyXML version 2.6.2/2.5.2 or above
  http://www.grinninglizard.com/tinyxml/

• MiniZIP version 1.2.11/1.1.0 or above
  http://www.winimage.com/zLibDll/minizip.html

POVRay:

• XQuartz 2.7.11.0/2.7.11.0 (for X11)
  https://www.xquartz.org

• LibTIFF version 4.0.10/3.6.1 or above
  http://www.libtiff.org

• OpenEXR version 2.2.0/2.2.0 or above
  http://www.openexr.com

• SDL2 version 2.0.9/2.0.2 or above (used for the experimental display preview)
  http://www.libsdl.org

Install brew (if not already installed)

• $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Install libraries

• $ brew update
• $ brew reinstall libpng
• $ brew install tinyxml gl2ps libjpeg minizip openexr sdl2 libtiff
• - Download XQuartz at https://dl.bintray.com/xquartz/downloads/XQuartz-2.7.11.dmg
• - Double click the XQuartz-2.7.11.dmg and follow the dialogue instructions.

Optional - Check installed library (e.g. libPNG)

• $ otool -L $(brew list libpng | grep dylib$)
    /usr/local/Cellar/libpng/1.6.35/lib/libpng.dylib:
    /usr/local/opt/libpng/lib/libpng16.16.dylib (compatibility version 52.0.0, current version 52.0.0)
    /usr/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.11)
    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.0.0)