package/bind: add libmaxminddb optional dependency

Add libmaxminddb optional dependency (which is enabled by default), two
options must be used to enable/disable this dependency:
 [pairwise: --enable-geoip --with-maxminddb=auto, --enable-geoip --with-maxminddb=yes, --disable-geoip]

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/bind/bind.mk

@@ -61,6 +61,13 @@ else
 BIND_CONF_OPTS += --with-gssapi=no
 endif
 
+ifeq ($(BR2_PACKAGE_LIBMAXMINDDB),y)
+BIND_CONF_OPTS += --enable-geoip --with-maxminddb
+BIND_DEPENDENCIES += libmaxminddb
+else
+BIND_CONF_OPTS += --disable-geoip
+endif
+
 ifeq ($(BR2_PACKAGE_LIBXML2),y)
 BIND_CONF_OPTS += --with-libxml2
 BIND_DEPENDENCIES += libxml2