[#1256] fixed compilation

diff --git a/src/lib/dhcpsrv/subnet.cc b/src/lib/dhcpsrv/subnet.cc
index 0a1bf5dedcb9ec85abb07e25b8af89cc95552aab..48965cefbdc907bba9e04460bb183b174288edb8 100644 (file)
--- a/src/lib/dhcpsrv/subnet.cc
+++ b/src/lib/dhcpsrv/subnet.cc
@@ -66,7 +66,7 @@ Subnet::Subnet(const isc::asiolink::IOAddress& prefix, uint8_t len,
       last_allocated_time_(),
       iface_(),
       shared_network_name_(),
-      mutex_(boost::make_shared<std::mutex>()) {
+      mutex_(new std::mutex) {
     if ((prefix.isV6() && len > 128) ||
         (prefix.isV4() && len > 32)) {
         isc_throw(BadValue,