build: configure: Write a comment to config.h for disabled features

When looking at config.h it should be obvious which features were
enabled and disabled, so put a comment there in cased they are disabled.

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

1 files changed, 10 insertions, 0 deletions

diff --git a/configure b/configure
index 5055654..067b675 100755
--- a/configure
+++ b/configure
@@ -602,22 +602,32 @@ gen_config_hdr()
 
 	if [ "$HAVE_LIBPCAP" == "1" ] ; then
 		_have_libpcap="#define HAVE_TCPDUMP_LIKE_FILTER 1"
+	else
+		_have_libpcap="/* HAVE_TCPDUMP_LIKE_FILTER is not defined */"
 	fi
 
 	if [ "$HAVE_HWTSTAMP" == "1" ] ; then
 		_have_hwts="#define HAVE_HARDWARE_TIMESTAMPING 1"
+	else
+		_have_hwts="/* HAVE_HARDWARE_TIMESTAMPING is not defined */"
 	fi
 
 	if [ "$HAVE_LIBGEOIP" == "1" ] ; then
 		_have_libgeoip="#define HAVE_GEOIP 1"
+	else
+		_have_libgeoip="/* HAVE_GEOIP is not defined */"
 	fi
 
 	if [ "$HAVE_LIBZ" == "1" ] ; then
 		_have_libz="#define HAVE_LIBZ 1"
+	else
+		_have_libz="/* HAVE_LIBZ is not defined */"
 	fi
 
 	if [ "$HAVE_TPACKET3" == "1" ] ; then
 		_have_tp3="#define HAVE_TPACKET3 1"
+	else
+		_have_tp3="/* HAVE_TPACKET3 is not defined */"
 	fi
 
 	cat > config.h << EOF