vdso.so binaries present in the upstream source packages are being installed (and executed in the end user non-virtualized environment context, as those seem to be vdso stubs for qemu-user process environment) instead of being built from the source. Removing the **/vdso.so results in failing builds in >=qemu-8.2.0. Upstream doesn't seem to care. Apparently a simple hack from Debian can be used in the ebuild to force the qemu build system to behave: https://gitlab.com/qemu-project/qemu/-/issues/2148#note_1812105636
The ebuild of the last version of qemu that doesn't ship prebuilt binaries, 8.1.5, doesn't support python3_13.
(In reply to Sergey 'L29Ah' Alirzaev from comment #1) > The ebuild of the last version of qemu that doesn't ship prebuilt binaries, > 8.1.5, doesn't support python3_13. That's not really relevant to this bug. You can make the argument (and can in a new bug) that we should have py3.13 for each branch we're trying to maintain, but it's otherwise irrelevant.