Update to 4.02 and fix build errors with clang 5

Linrad-04.02 comes with many improvements. The first FFT can now run in
parallel in up to 6 separate threads.  More efficient FFT implementations
are available for some hardware architectures.
The converter option is corrected.
Several bug corrections.


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@374259 35697150-7ecd-e111-bb59-0022644237b5
Unbreak


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@374260 35697150-7ecd-e111-bb59-0022644237b5