[Libguestfs] Building nbdkit with mingw and wine

The detailed instructions are at the bottom of the README if you search for "WINDOWS": https://gitlab.com/nbdkit/nbdkit/-/blob/master/README These basic commands should work: $ mingw64-configure --disable-ocaml --disable-perl --disable-vddk $ mingw64-make and the binary should be runnable if Wine is installed, eg: $ ./nbdkit.exe --dump-config ... host_cpu=x86_64 host_os=mingw32 ... Getting the tests to work under Wine is ... well, a tad more tedious. There are several issues: - Windows now supports AF_UNIX, but Wine does not. - Most tests use Unix domain sockets (ie. nbdkit -U) because using possibly public TCP ports during tests is not cool and also difficult to deconflict. So AF_UNIX support is really needed to run nbdkit tests in any detail. - I patched Wine to add AF_UNIX support (see attached). However since then Wine code has changed quite significantly in the way it creates sockets so my patch doesn't even remotely work and I can't see an easy way to fix it. Therefore you must apply the attached patch on top of 7ec069d85f5235db ("ntdll/tests: Fix virtual test failures on win10pro.") Only 5592 commits behind head! - ./configure --enable-win64 && make - For some reason I had to hand-edit dlls/gdi32/Makefile to remove the tools/wrc/wrc -pthread parameter. I'm pretty sure I didn't need to do that before. There could be an upstream commit we are missing. If you do all of that and build Wine then you should be able to set $PATH to point to the patched Wine build directory and run the tests as so: $ PATH=~/d/wine:$PATH mingw64-make check -C tests Tests in !tests directory fail for miscellaneous reasons. Most tests will be skipped but for me at least a significant number pass. I get: ============================================================================ Testsuite summary for nbdkit 1.25.7 ============================================================================ # TOTAL: 203 # PASS: 75 # SKIP: 128 # XFAIL: 0 # FAIL: 0 # XPASS: 0 # ERROR: 0 ============================================================================ I would recommend adding “WINEDEBUG=warn+all” if nothing seems to be working. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://people.redhat.com/~rjones/virt-top