Matlab does not source the ISSM startup at launch

I am trying to launch Matlab using the graphical interface, not from command line, and

Matlab does not source the ISSM_DIR/startup.m file where all the ISSM settings are. What should I do?

If you are launching using an Icon or from the Startup menu, startup.m will not

be sourced. The way around this is to either copy the ISSM_DIR/startup.m into your

MATLABROOT/toolbox/local/ directory or to make a symbolic link by doing:

cd MATLABROOT/toolbox/local

ln -s $ISSM_DIR/startup.m ./startup.m