According to the build logs: https://buildd.debian.org/status/package.php?p=qemu&suite=sid qemu-5.0 fails on ia64, m68k, sh4 and sparc (and maybe alpha) similar as hppa did in the past.
Maybe by applying the same config options (--enable-tcg-interpreter --enable-tools) to those architectures as it's done for hppa here would fix them? +++ ./debian/rules 2020-07-06 08:24:40.642426829 +0000 @@ -65,7 +65,7 @@ endif ifeq ($(DEB_TARGET_ARCH), hppa) # ADD ia64, m68k, sh4 and sparc (and maybe alpha) HERE? # allow configure to run on unsupported arches to build qemu-utils and the like -common_configure_opts += --enable-tcg-interpreter +common_configure_opts += --enable-tcg-interpreter --enable-tools
