libplist: Update to 1.10, enable Cython bindings

[aried3r]

• Added HEAD
• Update to version 1.10 from 1.8
• Removed unnecessary CMakeLists.txt patch (now done via options)
• Removed other now unnecessary patches
• Added --python option for Cython Python bindings
• Added Caveat
• Added fix for CMake from opencv.rb
• Removed libxml2 dependency, provided by OS X

Related to #18396

Hope the libxml2 part is ok. I read here that it's ok to use depends_on in this case, but also here that homebrew tries not to duplicate dependencies.

PS: The new binary is called plistutil

[cooljeanius]

This corresponds to the following MacPorts ticket: https://trac.macports.org/ticket/38520

Edit: which was committed in r104408

[samueljohn]

Cool. Can you name the python option --with-python? Would be more consistent.

[aried3r]

I made the changes mentioned by @adamv and @samueljohn. Please re-verify.

[samueljohn]

One thing bothers me

CMake Warning:
  Manually-specified variables were not used by the project:

    PYTHON_PACKAGES_PATH

Looks like this var is ignored and was specific to OpenCV.

With a brewed python (and after I did pip install cython of course) this works. Could you test with system python, too? Perhaps it works and is sufficient to set the PYTHONPATH variable.

[samueljohn]

If you get it working with system python, perhpas we don't need PYTHON_PACKAGES_PATH and can remove it. Then I'll pull in. Thanks for all the work here!

[aried3r]

Removed PYTHON_PACKAGES_PATH. Builds with brewed and system Python on OS X 10.8.3.

[samueljohn]

ok

[samueljohn]

Thanks very much. Visit us again :-)