[Libguestfs] [nbdkit PATCH 1/2] include: Expose nbdkit version information to public

[Richard W.M. Jones]

As we discussed on IRC, patch 1 is obvious and uncontroversial, let's
do it.

I think patch 2 is overkill really, and weird pointer tricks have a
habit of breaking on big endian / 32 bit / obscure platforms.  Why
don't we just create a brand new filter API number (6 I think), reject
everything with API != 6, and as a further test verify that
strcmp (filter->version, PACKAGE_VERSION) == 0 ?

Rich.

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