Support for netbsd

[mldulaney]

Adds support for netbsd

[waywardmonkeys]

Does the cmake build system work here without changes?

[nbriggs]

If you add the “init” version of the makefile fragment as well then it will enable doing loadups on netbsd also. See the FreeBSD equivalent…

[mldulaney]

Does the cmake build system work here without changes?

It did not seem to make all binaries

If you add the “init” version of the makefile fragment as well then it will enable doing loadups on netbsd also. See the FreeBSD equivalent…

Got that bit working, too, and I'll update my PR shortly.

[nbriggs]

@mldulaney - the cmake default is to make only the binaries you need to run an existing sysout, so lde and ldex. Given that we're not checking in sysout files these days it would make sense to have the CMake targets include ldeinit as well.