[Libguestfs] [PATCH nbdkit 0/2 v2] golang: Compile against the local nbdkit build.

[Richard W.M. Jones]

Version 1 was here:
https://www.redhat.com/archives/libguestfs/2020-April/thread.html#00160

Version 2 side-steps the objections to the first patch by using a
well-formed alternate nbdkit.pc file and running ordinary pkg-config
against it, so any parsing of --cflags etc will be done by pkg-config.

The first patch is essentially the same idea as:

https://github.com/libguestfs/libnbd/commit/dc87a1a6d6918ac5477e1d6b225998ff7fedc86e

(which follows on from similar tricks in libguestfs and libvirt).

Rich.