build: fix boost 1.73 compatibility

2 files changed, 3 insertions, 3 deletions

diff --git a/src/checkpoints/checkpoints.cpp b/src/checkpoints/checkpoints.cpp
index 4a4b3c5c2..852e21318 100644
--- a/src/checkpoints/checkpoints.cpp
+++ b/src/checkpoints/checkpoints.cpp
@@ -135,8 +135,8 @@ namespace cryptonote
   {
     std::map< uint64_t, crypto::hash >::const_iterator highest = 
         std::max_element( m_points.begin(), m_points.end(),
-                         ( boost::bind(&std::map< uint64_t, crypto::hash >::value_type::first, _1) < 
-                           boost::bind(&std::map< uint64_t, crypto::hash >::value_type::first, _2 ) ) );
+                         ( boost::bind(&std::map< uint64_t, crypto::hash >::value_type::first, boost::placeholders::_1) <
+                           boost::bind(&std::map< uint64_t, crypto::hash >::value_type::first, boost::placeholders::_2 ) ) );
     return highest->first;
   }
   //---------------------------------------------------------------------------
diff --git a/src/device_trezor/trezor/transport.cpp b/src/device_trezor/trezor/transport.cpp
index 52bee6c6c..51396d90a 100644
--- a/src/device_trezor/trezor/transport.cpp
+++ b/src/device_trezor/trezor/transport.cpp
@@ -711,7 +711,7 @@ namespace trezor{
     // Start the asynchronous operation itself. The handle_receive function
     // used as a callback will update the ec and length variables.
     m_socket->async_receive_from(boost::asio::buffer(buffer), m_endpoint,
-                                 boost::bind(&UdpTransport::handle_receive, _1, _2, &ec, &length));
+                                 boost::bind(&UdpTransport::handle_receive, boost::placeholders::_1, boost::placeholders::_2, &ec, &length));
 
     // Block until the asynchronous operation has completed.
     do {