[PATCH v3] server: support inotify file change notifications on FreeBSD

[Damjan Jovanovic]

The inotify code uses the Linux-specific /proc/self/fd/<FD> symlinks
to translate
file descriptors to filesystem paths. On FreeBSD, do this translation using
its own sysctl instead.

Try 3 makes the mib variable in fd_path() non-static, and moves the
fd_path() functions into the HAVE_SYS_INOTIFY_H block where they should be
invisible on MacOS.

Signed-off-by: Damjan Jovanovic 
---
 server/change.c | 132 ++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 111 insertions(+), 21 deletions(-)