Under Irix there are some version conflicts between Matlab
5.2/5.3 and 6. The extension of the mex-files has changed. Normally
this is no problem because the old extension will also work but
TSTOOL have own mex-file directories for each system (Sun, Linux,
SGI, Windows) named with this mex-file extension. So the path
settings settspath do can be incorrect for the Irix system.
In such case please replace the following line in the settspath.m file:
path(fullfile(TSTOOLpath, fullfile('mex', mexext)), path);
with this line:
path(fullfile(TSTOOLpath, fullfile('mex', 'mexsg64')), path);