Unable to run Tecplot after upgrading to XQuartz 2.7.5 Mavericks OS X 10.9 (and in some cases 10.8)

Note: Tecplot 360 EX is native to the Mac and doesn’t rely on an X Windows System. Download the latest release or get a free trial.

Problem:

Unable to run Tecplot after upgrading to XQuartz 2.7.5 on Mavericks OS X 10.9.

Solution:

If you are running Mavericks OS X 10.9 (and in some cases 10.8) you may have noticed XQuartz has pushed out a new release of XQuartz 2.7.5.  After you have upgraded you may have noticed that Tecplot no longer runs.  In fact you should notice one of two things.  First, you may notice the error below via the terminal.

dyld: Library not loaded: /opt/X11/lib/libfreetype.6.dylib
Referenced from: /usr/X11/lib/libXft.2.dylib Reason: Incompatible library version: libXft.2.dylib requires version 17.0.0 or later, but libfreetype.6.dylib provides version 15.0.0 /applications/tec360_2013/bin/tec360: line 624: 1721 Trace/BPT trap: 5 $ICONSTART \"$TECHOME/bin/$EXECUTABLE\" $APPFLAG \"$@\"

You may also notice that after starting Tecplot via the terminal using the open command or from clicking on the Tecplot.app that Tecplot just does not start up . If either of these are the case, though we do not fully support Mavericks OS X 10.9 yet, we do have a couple of workarounds.  The first option is to revert back to 2.7.4.  The bits can be retrieved from the website below.
https://www.xquartz.org/releases/XQuartz-2.7.4.html