ruby gems

[Robert Swindells <rjs%fdy2.co.uk@localhost>]

Is there any documentation on how ruby gems are built and installed on
NetBSD?

I have a ruby package that expects to download a tarball of C source
files from github at 'gem install' time and compile them, the sources in
the tarball don't compile on NetBSD as they are not POSIX compliant,
upstream is resisting adding one line to include unistd.h to make it
compile.

If I build the package locally then installing it doesn't download
and compile anything, I'm guessing this is deliberate.