QEMU 5.2.0 update - functions properly but still work in progress

Here is a patch that updates QEMU to 5.2.0-rc4.

The big change here is that the build system has changed to use Meson

and Ninja "under the hood", although this release still uses

`./configure && make` in a superficial way.

With this patch, the qemu and qemu-minimal packages build and can boot

Guix VMs created with the `guix system` commands.

There are still two open tasks that require assistance:

1) The patch that makes Sphinx build an info manual will need to be

adapted to the meson build system. Ideally, this would be submitted

upstream.

2) The ./configure step is considered "stale" in the build phase and

thus gets run twice. You can add "--trace" to #:make-flags to trace the

Makefile and try to understand what's wrong (shown below). I'm no Make

expert but, AFAICT, there are some PHONY targets that depend on the

output of the configure step, config-host.mak, so it may be an upstream

bug. But I might be misunderstanding it. I asked on the QEMU IRC but

didn't get a useful answer.

------

starting phase `build'

GNUmakefile:10: update target 'all' due to: force

echo 'changing dir to build for make ""...'

changing dir to build for make ""...

make -C build -f Makefile

make[1]: Entering directory '/tmp/guix-build-qemu-minimal-5.2.0-rc4.drv-0/qemu-5.2.0-rc4/build'

Makefile:109: update target 'config-host.mak' due to: /tmp/guix-build-qemu-minimal-5.2.0-rc4.drv-0/qemu-5.2.0-rc4/pc-bios

echo config-host.mak is out-of-date, running configure

config-host.mak is out-of-date, running configure

if test -f meson-private/coredata.dat; then \

./config.status --skip-meson; \

else \

./config.status && touch build.ninja.stamp; \

fi

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Here is a new revision of this patch.

It updates QEMU to the final 5.2.0 release, rather than using a release

candidate.

close 45014

quit