Building MyPaint on OS X

IN PROGRESS: Please help us improve this section. The wiki's OS X notes are somewhat outdated and could do with improving too, but have possibly interesting notes about Quartz vs X11 builds: http://wiki.mypaint.info/Development/Packaging#OSX. Feedback welcome.

Most users will want to grab MyPaint-devel from macports or stick with the stable MyPaint portfile already there.

For the adventurous,the following is reported to work on OS X 10.9:

Environment setup: to use Frameworks Python (currently 2.7.8) while satisfying the other dependencies from Macports, use

export PKG_CONFIG_PATH=/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/pkgconfig/
export CFLAGS="-I/opt/local/include"

Install dependencies:

sudo port install gtk3
sudo port install json-c
sudo port install py27-numpy
sudo port install py27-scipy
sudo port install py27-pyobjc-cocoa    # optional, for i18n support
sudo port install lcms2
sudo port install py27-gobject3
sudo port install hicolor-icon-theme

Fetch source and update submodules just as for Linux:

git clone https://github.com/mypaint/mypaint.git
cd mypaint
git submodule update --init --force

Build and test. The sudo -E should not be necessary - let us know if it isn't, or if it's unhelpful when running the build in test mode.
```
sudo -E scons
./mypaint -c /tmp/mypaint_cfgtmp_$$
```