configure: Call a function from libgeoip in check_libgeoip()

In order to cause the linker to get called and thus the check for the
presence of the library (not just the headers) to be performed, call
GeoIP_new(). Also pass the proper linker flag to $CC.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 3 insertions, 1 deletions

diff --git a/configure b/configure
index 6f5b54b..2c9142d 100755
--- a/configure
+++ b/configure
@@ -184,10 +184,12 @@ void main(void)
 		GEOIP_ASNUM_EDITION,
 		GEOIP_ASNUM_EDITION_V6,
 	};
+
+	geoip = GeoIP_new(0);
 }
 EOF
 
-	$CC -o $TMPDIR/geoiptest $TMPDIR/geoiptest.c >> $TMPDIR/config.log 2>&1
+	$CC -o $TMPDIR/geoiptest $TMPDIR/geoiptest.c -lGeoIP >> $TMPDIR/config.log 2>&1
 	if [ ! -x $TMPDIR/geoiptest ] ; then
 		echo "[NO]"
 		MISSING_DEFS=1