Source: reiser4progs Version: 1.2.0-1 Severity: serious https://buildd.debian.org/status/package.php?p=reiser4progs&suite=sid
... checking whether -falign-loops works... yes ... gcc: error: unrecognized command line option '-malign-jumps=1'; did you mean '-falign-jumps='? gcc: error: unrecognized command line option '-malign-jumps=1'; did you mean '-falign-jumps='? gcc: error: unrecognized command line option '-malign-loops=1'; did you mean '-falign-loops='? gcc: error: unrecognized command line option '-malign-loops=1'; did you mean '-falign-loops='? configure.ac seems to set falign_loop_flag_cv_ but use falign_loop_flag.