config: check for liburcu

Add a configure script extension that checks for liburcu as it is
currently needed by flowtop.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/configure b/configure
index a49ed78..4bbbaed 100755
--- a/configure
+++ b/configure
@@ -243,6 +243,29 @@ EOF
 	fi
 }
 
+check_urcu()
+{
+	echo -n "[*] Checking liburcu ... "
+
+	cat > $TMPDIR/urcutest.c << EOF
+#include <urcu.h>
+
+void main(void)
+{
+	rcu_init();
+	synchronize_rcu();
+}
+EOF
+
+	$CC -o $TMPDIR/urcutest $TMPDIR/urcutest.c -lurcu >> $TMPDIR/config.log 2>&1
+	if [ ! -x $TMPDIR/urcutest ] ; then
+		echo "[NO]"
+		MISSING_DEFS=1
+	else
+		echo "[YES]"
+	fi
+}
+
 echo "# This file is autogenerated by the configure script" > Config
 check_pkg_config
 
@@ -259,6 +282,7 @@ check_libnf_ct
 check_ncurses
 check_libgeoip
 check_zlib
+check_urcu
 
 if [ "$MISSING_DEFS" == "1" ] ; then
 	echo "[!] Some libraries or header definitions are missing or too old."