package/daq3: fix build without C++

Fix the following build failure without C++ raised since bump to
version 3.0.9 in commit c05fe1d621c7c5147f687b39f61988918efec566 and
https://github.com/snort3/libdaq/commit/c2ae4668fb4c8f53523a47f93a120c62364f3d02:

libtool: compile:  no -DHAVE_CONFIG_H -I. -I.. -fvisibility=hidden -Wall -Wmissing-declarations -Wpointer-arith -Wcast-align -Wcast-qual -Wformat -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wextra -Wsign-compare -Wno-unused-parameter -fno-strict-aliasing -fdiagnostics-show-option -I../api -DBUILDING_SO -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -g0 -c gwlb/daq_gwlb.cc  -o gwlb/.libs/daq_gwlb_la-daq_gwlb.o
../libtool: line 1763: no: command not found

Fixes:
 - http://autobuild.buildroot.org/results/48b4673f46c9065e97e95872f9aa947c4f3fc21b

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

package/daq3/daq3.mk

@@ -13,6 +13,12 @@ DAQ3_DEPENDENCIES = host-pkgconf
 # From git
 DAQ3_AUTORECONF = YES
 
+ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
+DAQ3_CONF_OPTS += --enable-gwlb-module
+else
+DAQ3_CONF_OPTS += --disable-gwlb-module
+endif
+
 ifeq ($(BR2_PACKAGE_LIBNETFILTER_QUEUE),y)
 DAQ3_DEPENDENCIES += libnetfilter_queue
 DAQ3_CONF_OPTS += --enable-nfq-module