Source: python-intbitset Version: 2.3.0-1 Severity: serious https://buildd.debian.org/status/package.php?p=python-intbitset&suite=sid
... aarch64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python2.7 -c intbitset/intbitset.c -o build/temp.linux-arm64-2.7/intbitset/intbitset.o -O3 -march=core2 -mtune=native cc1: error: unknown value 'core2' for -march error: command 'aarch64-linux-gnu-gcc' failed with exit status 1 E: pybuild pybuild:283: build: plugin distutils failed with: exit code=1: /usr/bin/python setup.py build dh_auto_build: pybuild --build --test-nose -i python{version} -p 2.7 returned exit code 13 debian/rules:10: recipe for target 'override_dh_auto_build-arch' failed make[1]: *** [override_dh_auto_build-arch] Error 25 Neither option is permitted here: - -march=core2 is not available on non-x86 - on i386 and amd64, -march=core2 violates the baseline of the Deban architecture - -mtune=native gives different packages (with different performance) depending on the buildd used