fortran program fails -- help...

[Toon Moene]

Paul,

>  I have a fortran program that compiles fine but fails at
>  runtime.  (It's "somnec2s" which is a companion program
>  to nec, the antenna analysis tool.)  One of its
>  subroutines initializes an array the first time through,
>  and expects it to be untouched after.  Problem is that
>  it is scribbled on shortly after exit from that
>  subroutine.

Are you sure the array is declared SAVE ?

I.e.

      save m

Otherwise, the contents won't be preserved for the second call of  
the routine (this is a Standards Issue, and it is explained in the  
manual, because some Fortran compilers SAVE local data by default;  
g77 doesn't).

HTH,
Toon.