About
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to build qemu-xen-7.0.0 in focal 20.04, we need meson @ v0.59.3 or higher.

https://launchpad.net/ubuntu/+source/meson/0.61.2-1

we backported this debian source package to focal from unstable.

-- snip --
root@ubuntu20:/home/mockbuild/pbdeps# apt-get install ./meson-q7/meson_0.61.2-1~bpo2004.1_all.deb 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'meson' instead of './meson-q7/meson_0.61.2-1~bpo2004.1_all.deb'
The following additional packages will be installed:
  libpython3-stdlib ninja-build python3 python3-distutils python3-lib2to3 python3-minimal python3-pkg-resources python3.8
  python3.8-minimal
Suggested packages:
  python3-doc python3-tk python3-venv python3-setuptools python3.8-venv python3.8-doc binfmt-support
The following NEW packages will be installed:
  libpython3-stdlib meson ninja-build python3 python3-distutils python3-lib2to3 python3-minimal python3-pkg-resources python3.8
  python3.8-minimal
0 upgraded, 10 newly installed, 0 to remove and 0 not upgraded.
Need to get 2824 kB/3342 kB of archives.
After this operation, 12.9 MB of additional disk space will be used.
-- snip --

DEB_BUILD_OPTIONS=nocheck dpkg-buildpackage -nc -F -rfakeroot > ../mkmsn.out 2>&1

Author
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PryMar56
Aug 2022