unbound 1.6.1: Linking against libevent2

Hi,

this was triggered by unbound-users@unbound.net - it seems that the
'configure'-option '--with-libevent-support' is not enough:

***SNIP***
...
When building unbound with --with-libevent support, the make
install phase should also call make unbound-event-install or else
unbound-event.h does not get installed and the header file for
using the unbound event functionality is not available.
...
This install is triggered by the option --enable-event-api. Just
enabling --with-libevent does not trigger the install by itself.

Best regards,
Wouter
...
***SNAP***

I built 'unbound' this way - its running without any problems so far.

Best,
Matthias

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

lfs/unbound

@@ -78,7 +78,9 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 			--with-pidfile=/var/run/unbound.pid \
 			--with-rootkey-file=/var/lib/unbound/root.key \
 			--disable-static \
-			--with-libevent
+			--with-libevent \
+			--enable-event-api
+
 	cd $(DIR_APP) && make $(MAKETUNING)
 	cd $(DIR_APP) && make install