WIRESHARK_CFLAGS=""
WIRESHARK_PLUGIN_DIR="unknown"
AC_ARG_WITH([wireshark],
-[ --with-wireshark build and install Wireshark plugin],
+[ --with-wireshark build and install Wireshark plugin],
[case "$withval" in
no) wireshark=false requirewireshark=false;;
yes) wireshark=true; requirewireshark=true;;