Re: 'struct ipoption' & signed char

[Theo de Raadt]

here is a related argument:

https://lists.freebsd.org/pipermail/svn-src-stable-9/2016-September/008613.html
https://reviews.freebsd.org/D7777

There is a minute C++ argument against changing it, but I suspect a library
using ipopts is a rare animal.