avahi-ui: use PACKAGECONFIG for gtk features
The commit "
054ea20 avahi-ui: Build with Gtk+3"
enabled gtk3 and disabled gtk2, which causes failure on
some package depends on gtk2, like gnome-disk-utility
in meta-openembedded/meta-gnome:
| checking for GTK2... yes
| checking for AVAHI_UI... no
| configure: error: Package requirements (avahi-ui >= 0.6.25) were not met:
|
| No package 'avahi-ui' found
The gtk2 and gtk3 feature for avahi-ui is not exclusive, so change
to use PACKAGECONFIG for them so we can easily enable/disable one
of them or both of them as needed.
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
