-URCU_LIB=
-AC_CHECK_HEADER([urcu.h], [
- AC_CHECK_LIB(urcu, synchronize_rcu, [
- URCU_PATH=
- URCU_LIB="-lurcu"
- ])
-])
-AC_ARG_WITH(urcu, [ --with-urcu path Path to userspace RCU source], [
- AC_CHECK_FILE(["$withval/urcu.h"], [
- URCU_PATH="$withval"
- URCU_LIB="/liburcu.la" ],
- AC_MSG_ERROR([Cannot find urcu.h in urcu directory]))
-])
-if test -z "${URCU_LIB}" ; then
- AC_MSG_ERROR([Must specify urcu path.])
-fi
-AC_SUBST(URCU_PATH)
-AC_SUBST(URCU_LIB)
+# urcu - check if we just find the headers it out of the box.
+AC_CHECK_HEADERS([urcu-bp.h], [], [AC_MSG_ERROR([Cannot find [URCU] headers (urcu-bp.h). Use [CFLAGS]=-Idir to specify their location.])])
+
+# urcu - check that URCU lib is available to compilation
+AC_CHECK_LIB([urcu-bp], [synchronize_rcu], [], [AC_MSG_ERROR([Cannot find liburcu-bp lib. Use [LDFLAGS]=-Ldir to specify its location.])])