Source: bitseq Version: 0.7.5+dfsg-1 Severity: important https://buildd.debian.org/status/package.php?p=bitseq&suite=sid
... g++: error: unrecognized argument in option '-mtune=generic' gcc in Debian is already configured to default to -mtune=generic on i386/amd64 (so it doesn't make a difference there), and this option isn't supported on most other architectures.