I downloaded the NEC source code from
http://www.qsl.net/m5aiq/nec.html
My compiler is GNU FORTRAN (g77).
The compile error is: "Reference to intrinsic function 'SECNDS' as if
it were a subroutine at (^)"
My FORTRAN is a bit rusty, before I go climb that hill, can a wise old
coder offer a fix?