pop3d: support fcntl locks on OpenBSD i386

The packaged Perl on OpenBSD i386 supports 64-bit file offsets
but not 64-bit integer support for 'q' and 'Q' with `pack'.
Since servers aren't likely to require lock files larger than
2 GB (we'd need an inbox with >2 billion messages), we can
workaround the Perl build limitation with explicit padding.

File::FcntlLock isn't packaged for OpenBSD <= 7.4 (but should be
in future releases), but I can test i386 OpenBSD on an extremely
slow VM.

Big endian support can be done, too, but I have no idea if
there's 32-bit BE users around nowadays...

1 files changed, 1 insertions, 0 deletions

diff --git a/MANIFEST b/MANIFEST
index 2223cfb4..4c974338 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -575,6 +575,7 @@ t/plack-qp.eml
 t/plack.t
 t/pop3d-limit.t
 t/pop3d.t
+t/pop3d_lock.t
 t/precheck.t
 t/psgi_attach.eml
 t/psgi_attach.t