Avoid timer_create() on NetBSD and OpenBSD
commit06c1552e44f630b7bdb26cefb9c4ffaffc47846d
authorOlly Betts <olly@survex.com>
Thu, 4 Oct 2018 06:33:36 +0000 (4 19:33 +1300)
committerOlly Betts <olly@survex.com>
Thu, 4 Oct 2018 07:10:11 +0000 (4 20:10 +1300)
treee45fcff4d142cdd7e5a2924e218861c69f321b8a
parentc78c051ba2996823c2a26a759dbb5c079b8851c2
Avoid timer_create() on NetBSD and OpenBSD

On OpenBSD it always fails with ENOSYS (and there's no prototype in
the libc headers).

On NetBSD it seems to work, but the timer never seems to fire, so it's
useless to us (see #770).

(cherry picked from commit 973d9889d5a31c4ed063cb42819ecbc91c7320e0)
xapian-core/configure.ac