gsl error not handled

[artivis]

The following gsl error is not handled properly leading to the program to crash:

gsl: lu.c:262: ERROR: matrix is singular
Default GSL error handler invoked.

Unfortunately this is not catchable from outer code and must be handled directly within csm.

The solution is something along those lines:

// TURN OFF GSL ERROR ERROR HANDLER
// (GSL JUST PRINT ERROR MESSAGE AND KILL THE PROGRAM IF FLAG IN ON)
 gsl_set_error_handler_off();

int status = gsl_function (...);
if (status) { /* an error occurred */
  /* status value specifies the type of error */
  /* deal with it */
}

However as of now I'm not sure which gsl functions spits this error.