Source: pam-p11 Version: 0.2.0-1 Severity: serious Tags: ftbfs https://buildd.debian.org/status/package.php?p=pam-p11&suite=sid
...
pam_p11.c: In function 'randomize':
pam_p11.c:556:36: error: comparison between signed and unsigned integer
expressions [-Werror=sign-compare]
if (0 <= fd && read(fd, r, r_len) == r_len) {
^~
