[libvirt] Cannot find suitable emulator for x86_64

[Mathieu Tarral]

Hi !

I'm trying to reproduce a bug that i'm facing with libvirt 3.0.0 on
Debian stretch.
I compiled the latest stable libvirt (4.4.0), and installed it:

./autogen.sh
./configure --prefix=$HOME/usr --localstatedir=/var
make
sudo make install

But when i try to run ~/usr/bin/virsh version, it complains with this message:
virsh # version
Compiled against library: libvirt 4.4.0
Using library: libvirt 4.4.0
Using API: QEMU 4.4.0
error: failed to get the hypervisor version
error: internal error: Cannot find suitable emulator for x86_64

This is what i can find in the output of ~/usr/sbin/libvirtd:

2018-06-13 11:30:17.361+0000: 27502: error :
virCapabilitiesDomainDataLookupInternal:736 : invalid argument: could
not find capabilities for arch=x86_64 domaintype=qemu
2018-06-13 11:30:17.361+0000: 27502: error :
virQEMUCapsGetDefaultVersion:1455 : internal error: Cannot find
suitable emulator for x86_64


My environment has not changed, QEMU is still installed.
Can you help me understand what is wrong here ?

Thank you in advance !

-- 
Mathieu Tarral