Created attachment 95006 [details]
unbreak build: missing pkg linux

Hi.

Building zeitgeist on OpenBSD ends up with the following error:

/usr/local/bin/valac \
	--target-glib=2.26 --pkg gio-2.0 --pkg gio-unix-2.0 --pkg sqlite3 ../config.vapi -C   ./zeitgeist-datamodel-2.0.vapi ./zeitgeist-internal.vapi --vapi zeitgeist-2.0.vapi -H zeitgeist.h --library zeitgeist-2.0  \
	data-source-registry.vala index.vala log.vala monitor.vala queued-proxy-wrapper.vala remote.vala
log.vala:44.7-44.11: error: The namespace name `Posix' could not be found
using Posix;
      ^^^^^
log.vala:45.7-45.11: error: The namespace name `Linux' could not be found
using Linux;

This patches fixes it, but I wonder why it is not seen on other OSes.
Thank you.