q2c trouble

[Jason Stover]

I'm having q2c trouble. The regression
syntax specification used to say this:

       /* (specification)
          "REGRESSION" (regression_):
             *variables=varlist;
              statistics[st_]=r,
              ...

and now it says this

    /* (specification)
       "REGRESSION" (regression_):
          *variables=custom;
           statistics[st_]=r,
           ...

in the former case, q2c made struct cmd_regression with a 
v_variables member. In the new case, it does not, but it
still generates this instruction in regression.c:

static void
free_regression (struct cmd_regression *p UNUSED)
{
        free (p->v_variables);
}

so now regression.c will not compile since there is no
member called v_variables in a struct cmd_regression.

-Jason