After finally getting RHASH to build, a few easy days and then Nettle would not build. I tried everything, MAKE CLEAN, DEINSTALL, rebuilding build dependencies, nothing worked. Re-installing the old package again kept everything work.
In deperation, I saw the the GHOST-BSD laptop I am currently testing had a built package for nettle-3.6 so in desparation and part trial, I copied the nettle package from the laptop to the server and then issued SUDO PKG ADD path/to/nettle.3.5.xxx and hey presto, it installed and after several reboots and rebuilds of dependent packages it works. Its probably not the safest or more secure, but allowed all the packages that then depend on GNUTLS to build to the latest ports.
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