[Libguestfs] [PATCH nbdkit 0/13] Port to Windows without using a separate library.

[Richard W.M. Jones]

Also available here:
https://github.com/rwmjones/nbdkit/tree/2020-windows-mingw-nolib

After a lot of work I have made the port to Windows work without using
a separate library.  Instead, on Windows only, we build an "import
library" (library of stubs) which resolves references to nbdkit_*
functions in the main program and fixes up the plugin, basically the
first technique outlined in this email:
https://www.redhat.com/archives/libguestfs/2020-August/msg00268.html

Most tests fail, unsurprisingly.  The vast majority fail because we
lack support for Unix domain sockets.  There is some hope that we
could add this:
https://devblogs.microsoft.com/commandline/af_unix-comes-to-windows/
Although this could fix many tests, it's probably not going to be very
useful for actual Windows users.  Another large cause of test failures
is lack of --run option which might also be fixed with a lot of
effort.

As before it's entirely possible to develop on, compile and test this
series using only the tools provided in Fedora or RHEL.  You need a
few mingw64-* packages and wine.  (Note you don't need to run wine
explicitly, there should be a binfmt handler installed which allows
you to run nbdkit.exe directly).  Apart from having to use
./nbdkit.exe to run the wrapper, it should all work the same way, eg:

  ./nbdkit.exe -f -v memory 1G
  ./nbdkit.exe -f -v file disk.img

starts a RAM disk or exports a file.

This patch series should contain fixes for everything picked up on in
previous reviews.

Rich.