gtk: avahi build fix
gtk: avahi build fix

Hey,

avahi-0.26.7 braucht einen kleinen fix, um mit gtk+ 2.21.8/2.90.7 zu
bauen. See attachment.

lathiat/avahi,heftig/avahi,heftig/avahi,gloryleague/avahi,heftig/avahi-1,everbase/catta,lathiat/avahi,heftig/avahi-1,lathiat/avahi,Distrotech/avahi,everbase/catta,Distrotech/avahi,Distrotech/avahi,gloryleague/avahi,Kisensum/xmDNS-avahi,gloryleague/avahi,catta-x/catta,heftig/avahi-1,Kisensum/xmDNS-avahi,lathiat/avahi,lathiat/avahi,gloryleague/avahi,Distrotech/avahi,Kisensum/xmDNS-avahi,Kisensum/xmDNS-avahi,gloryleague/avahi,Kisensum/xmDNS-avahi,heftig/avahi,heftig/avahi,lathiat/avahi,heftig/avahi-1,heftig/avahi-1,gloryleague/avahi,heftig/avahi,catta-x/catta,Distrotech/avahi,Distrotech/avahi,catta-x/catta,Kisensum/xmDNS-avahi,heftig/avahi-1,everbase/catta,heftig/avahi