Man pages matching name file::fcntllock::xs in section 3pm:

File::FcntlLock::XS.3pm.en	debian 10 / libfile-fcntllock-perl
File::FcntlLock::XS.3pm.en	debian 11 / libfile-fcntllock-perl
File::FcntlLock::XS.3pm.en	debian 12 / libfile-fcntllock-perl