Debian 12 + Qemu 7.2.4 - Spice detection does not work / no longer needed?

[fellaw]

Spice is missing in the template Graphics dropdown on Debian 12, although qemu-system-x86_x64 7.2.4 shows options for it.

ldd qemu-system-x86_x64 does not list libspice-server.so, which is checked against in model/config.py:_qemu_support_spice()
I set return True for me to get it working, but I guess that's not a desired outcome so I didn't commit a push request.

I was able to select Spice after my change, and I was able to connect with virt-viewer.

Version info etc.

/usr/bin/qemu-system-x86_64 --version
QEMU emulator version 7.2.4 (Debian 1:7.2+dfsg-7+deb12u1)
Copyright (c) 2003-2022 Fabrice Bellard and the QEMU Project developers

/usr/bin/qemu-system-x86_64 --help | grep spice
-audiodev spice,id=id[,prop[=value][,...]]
-display spice-app[,gl=on|off]
-spice [port=port][,tls-port=secured-port][,x509-dir=

]
enable spice
-chardev spicevmc,id=id,name=name[,debug=debug][,logfile=PATH][,logappend=on|off]
-chardev spiceport,id=id,name=name[,debug=debug][,logfile=PATH][,logappend=on|off]

ldd /usr/bin/qemu-system-x86_64
linux-vdso.so.1 (0x00007ffcff582000)
libpixman-1.so.0 => /lib/x86_64-linux-gnu/libpixman-1.so.0 (0x00007f6e33f55000)
libcapstone.so.4 => /lib/x86_64-linux-gnu/libcapstone.so.4 (0x00007f6e33800000)
libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 (0x00007f6e351f4000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f6e351d5000)
libjpeg.so.62 => /lib/x86_64-linux-gnu/libjpeg.so.62 (0x00007f6e33ec2000)
libgnutls.so.30 => /lib/x86_64-linux-gnu/libgnutls.so.30 (0x00007f6e33400000)
libsasl2.so.2 => /lib/x86_64-linux-gnu/libsasl2.so.2 (0x00007f6e33ea5000)
libfdt.so.1 => /lib/x86_64-linux-gnu/libfdt.so.1 (0x00007f6e351c8000)
libudev.so.1 => /lib/x86_64-linux-gnu/libudev.so.1 (0x00007f6e33e77000)
libpmem.so.1 => /lib/x86_64-linux-gnu/libpmem.so.1 (0x00007f6e337ab000)
libseccomp.so.2 => /lib/x86_64-linux-gnu/libseccomp.so.2 (0x00007f6e3378b000)
libnuma.so.1 => /lib/x86_64-linux-gnu/libnuma.so.1 (0x00007f6e33e68000)
libgio-2.0.so.0 => /lib/x86_64-linux-gnu/libgio-2.0.so.0 (0x00007f6e33222000)
libgobject-2.0.so.0 => /lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007f6e3372c000)
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f6e330ea000)
librdmacm.so.1 => /lib/x86_64-linux-gnu/librdmacm.so.1 (0x00007f6e3370d000)
libibverbs.so.1 => /lib/x86_64-linux-gnu/libibverbs.so.1 (0x00007f6e336ec000)
libzstd.so.1 => /lib/x86_64-linux-gnu/libzstd.so.1 (0x00007f6e33630000)
libslirp.so.0 => /lib/x86_64-linux-gnu/libslirp.so.0 (0x00007f6e330c6000)
libvdeplug.so.2 => /lib/x86_64-linux-gnu/libvdeplug.so.2 (0x00007f6e33e61000)
libbpf.so.1 => /lib/x86_64-linux-gnu/libbpf.so.1 (0x00007f6e3306d000)
liburing.so.2 => /lib/x86_64-linux-gnu/liburing.so.2 (0x00007f6e33629000)
libgmodule-2.0.so.0 => /lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007f6e33623000)
libnettle.so.8 => /lib/x86_64-linux-gnu/libnettle.so.8 (0x00007f6e3301f000)
libgmp.so.10 => /lib/x86_64-linux-gnu/libgmp.so.10 (0x00007f6e32f9e000)
libhogweed.so.6 => /lib/x86_64-linux-gnu/libhogweed.so.6 (0x00007f6e32f55000)
libfuse3.so.3 => /lib/x86_64-linux-gnu/libfuse3.so.3 (0x00007f6e32f14000)
libaio.so.1 => /lib/x86_64-linux-gnu/libaio.so.1 (0x00007f6e3361e000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f6e32e35000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f6e32e15000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f6e32c34000)
/lib64/ld-linux-x86-64.so.2 (0x00007f6e3523c000)
libp11-kit.so.0 => /lib/x86_64-linux-gnu/libp11-kit.so.0 (0x00007f6e32b00000)
libidn2.so.0 => /lib/x86_64-linux-gnu/libidn2.so.0 (0x00007f6e32acf000)
libunistring.so.2 => /lib/x86_64-linux-gnu/libunistring.so.2 (0x00007f6e32919000)
libtasn1.so.6 => /lib/x86_64-linux-gnu/libtasn1.so.6 (0x00007f6e32904000)
libndctl.so.6 => /lib/x86_64-linux-gnu/libndctl.so.6 (0x00007f6e328d8000)
libdaxctl.so.1 => /lib/x86_64-linux-gnu/libdaxctl.so.1 (0x00007f6e328cb000)
libmount.so.1 => /lib/x86_64-linux-gnu/libmount.so.1 (0x00007f6e32868000)
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f6e3283a000)
libffi.so.8 => /lib/x86_64-linux-gnu/libffi.so.8 (0x00007f6e3282e000)
libpcre2-8.so.0 => /lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x00007f6e32792000)
libnl-3.so.200 => /lib/x86_64-linux-gnu/libnl-3.so.200 (0x00007f6e3276f000)
libnl-route-3.so.200 => /lib/x86_64-linux-gnu/libnl-route-3.so.200 (0x00007f6e326de000)
libelf.so.1 => /lib/x86_64-linux-gnu/libelf.so.1 (0x00007f6e326c3000)
libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007f6e326b9000)
libkmod.so.2 => /lib/x86_64-linux-gnu/libkmod.so.2 (0x00007f6e3269a000)
libblkid.so.1 => /lib/x86_64-linux-gnu/libblkid.so.1 (0x00007f6e32643000)
liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f6e32614000)
libcrypto.so.3 => /lib/x86_64-linux-gnu/libcrypto.so.3 (0x00007f6e32000000)

ldd -u /usr/bin/qemu-system-x86_64 is empty.

cat /etc/debian_version
12.0

uname -a
Linux myhost 6.1.0-9-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.27-1 (2023-05-08) x86_64 GNU/Linux

apt list | grep qemu-system-x86
qemu-system-x86/stable,now 1:7.2+dfsg-7+deb12u1 amd64 [installed]

apt list | grep libspice-server
libspice-server1/stable,now 0.15.1-1 amd64 [installed]