[Matplotlib-users] OSX CDAT Matplotlib interactive plots crash

[Andrew C. <ac...@gm...>]

The latest beta of CDAT (Climate Data Analysis Tools, widely used in
the atmospheric/oceanographic sciences) is distributed with the
matplotlib source included.

On OSX, while it seems to compile without a hitch, plotting
interactively (or calling show() ) with the TkAgg backend results in a
seg fault. The non-interactive backends have so far worked just fine.

The output from a simple interactive hello world line plot with
--verbose-helpful set is:

=================
Executing /opt/cdat/bin/python
$HOME=/Users/acharles
CONFIGDIR=/Users/acharles/.matplotlib
matplotlib data path /opt/cdat/lib/python2.5/site-packages/matplotlib/mpl-data
loaded rc file /opt/cdat/lib/python2.5/site-packages/matplotlib/mpl-data/matplotlibrc
matplotlib version 0.98.3
verbose.level helpful
interactive is False
units is False
platform is darwin
Using fontManager instance from /Users/acharles/.matplotlib/fontManager.cache
backend TkAgg version 8.5
Testing matplotlib
Segmentation fault
=================

CDAT builds almost everything from source. I've always found building
matplotlib for OSX to be tricky, so tend to just install binary eggs
these days. Nevertheless I have tried a couple of solutions:

1. setting export PKG_CONFIG_PATH=/usr/X11/lib/pkgconfig
2. editing setupext.py to put the system X11 libraries ahead of any
fink/macports versions
3. setting CFLAGS="-Os -arch i386 -arch ppc" LDFLAGS="-Os -arch i386 -arch ppc"

but to no avail. Is there a simple solution that can be applied to the
script that builds matplotlib?

-------------------------
Andrew Charles