7 files changed, 59 insertions, 7 deletions
diff --git a/.travis.yml b/.travis.yml
index 1e11d543c..beea1dfab 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,6 @@ addons:
     - gcc
     - clang
     - graphviz
-    - libboost1.55-all-dev
     - libdb++-dev
     - libdb-dev
     - libgtest-dev
@@ -23,8 +22,13 @@ addons:
     - libssl1.0.0
     - libunbound-dev
     - libunwind8-dev
-    #sources:
-    #- ubuntu-toolchain-r-test
+    sources:
+    - ubuntu-toolchain-r-test
+before_install:
+- sudo add-apt-repository -y ppa:kojoley/boost
+- sudo apt-get -q update
+install:
+- sudo apt-get -y install libboost-{chrono,program-options,date-time,thread,system,filesystem,regex,serialization}1.58{-dev,.0}
 script: make -j2 && HAVE_DOT=YES doxygen Doxyfile
 notifications:
   email: false
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 476736334..5ac4a2f95 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -407,8 +407,8 @@ else()
     set(USE_LTO false)
     # explicitly define stdlib for older versions of clang
     if(CMAKE_C_COMPILER_VERSION VERSION_LESS 3.7)
-      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
-      set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++")
+      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libstdc++")
+      set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libstdc++")
     endif()
   endif()
 
diff --git a/src/cryptonote_core/blockchain.h b/src/cryptonote_core/blockchain.h
index f5950291c..1524693b8 100644
--- a/src/cryptonote_core/blockchain.h
+++ b/src/cryptonote_core/blockchain.h
@@ -667,6 +667,13 @@ namespace cryptonote
     uint8_t get_ideal_hard_fork_version() const { return m_hardfork->get_ideal_version(); }
 
     /**
+     * @brief returns the next hardfork version
+     *
+     * @return the version
+     */
+    uint8_t get_next_hard_fork_version() const { return m_hardfork->get_next_version(); }
+
+    /**
      * @brief returns the newest hardfork version voted to be enabled
      * as of a certain height
      *
diff --git a/src/cryptonote_core/hardfork.cpp b/src/cryptonote_core/hardfork.cpp
index 39c026b08..c63ca36ef 100644
--- a/src/cryptonote_core/hardfork.cpp
+++ b/src/cryptonote_core/hardfork.cpp
@@ -369,6 +369,18 @@ uint64_t HardFork::get_earliest_ideal_height_for_version(uint8_t version) const
   return 0;
 }
 
+uint8_t HardFork::get_next_version() const
+{
+  CRITICAL_REGION_LOCAL(lock);
+  uint64_t height = db.height();
+  for (unsigned int n = heights.size() - 1; n > 0; --n) {
+    if (height >= heights[n].height) {
+      return heights[n < heights.size() - 1 ? n + 1 : n].version;
+    }
+  }
+  return original_version;
+}
+
 bool HardFork::get_voting_info(uint8_t version, uint32_t &window, uint32_t &votes, uint32_t &threshold, uint64_t &earliest_height, uint8_t &voting) const
 {
   CRITICAL_REGION_LOCAL(lock);
diff --git a/src/cryptonote_core/hardfork.h b/src/cryptonote_core/hardfork.h
index b3d485878..33b958f9c 100644
--- a/src/cryptonote_core/hardfork.h
+++ b/src/cryptonote_core/hardfork.h
@@ -169,6 +169,13 @@ namespace cryptonote
     uint8_t get_ideal_version(uint64_t height) const;
 
     /**
+     * @brief returns the next version
+     *
+     * This is the version which will we fork to next
+     */
+    uint8_t get_next_version() const;
+
+    /**
      * @brief returns the current version
      *
      * This is the latest version that's past its trigger date and had enough votes
diff --git a/src/daemon/rpc_command_executor.cpp b/src/daemon/rpc_command_executor.cpp
index 0a0fc793d..fba3e5398 100644
--- a/src/daemon/rpc_command_executor.cpp
+++ b/src/daemon/rpc_command_executor.cpp
@@ -274,6 +274,27 @@ static std::string get_mining_speed(uint64_t hr)
   return (boost::format("%.0f H/s") % hr).str();
 }
 
+static std::string get_fork_extra_info(uint64_t t, uint64_t now, uint64_t block_time)
+{
+  uint64_t blocks_per_day = 86400 / block_time;
+
+  if (t == now)
+    return " (forking now)";
+
+  if (t > now)
+  {
+    uint64_t dblocks = t - now;
+    if (dblocks <= 30)
+      return (boost::format(" (next fork in %u blocks)") % (unsigned)dblocks).str();
+    if (dblocks <= blocks_per_day / 2)
+      return (boost::format(" (next fork in %.1f hours)") % (dblocks / (float)(blocks_per_day / 24))).str();
+    if (dblocks <= blocks_per_day * 30)
+      return (boost::format(" (next fork in %.1f days)") % (dblocks / (float)blocks_per_day)).str();
+    return "";
+  }
+  return "";
+}
+
 bool t_rpc_command_executor::show_status() {
   cryptonote::COMMAND_RPC_GET_INFO::request ireq;
   cryptonote::COMMAND_RPC_GET_INFO::response ires;
@@ -331,7 +352,7 @@ bool t_rpc_command_executor::show_status() {
     }
   }
 
-  tools::success_msg_writer() << boost::format("Height: %llu/%llu (%.1f%%) on %s, %s, net hash %s, v%u, %s, %u+%u connections")
+  tools::success_msg_writer() << boost::format("Height: %llu/%llu (%.1f%%) on %s, %s, net hash %s, v%u%s, %s, %u+%u connections")
     % (unsigned long long)ires.height
     % (unsigned long long)(ires.target_height >= ires.height ? ires.target_height : ires.height)
     % (100.0f * ires.height / (ires.target_height ? ires.target_height < ires.height ? ires.height : ires.target_height : ires.height))
@@ -339,6 +360,7 @@ bool t_rpc_command_executor::show_status() {
     % (mining_busy ? "syncing" : mres.active ? "mining at " + get_mining_speed(mres.speed) : "not mining")
     % get_mining_speed(ires.difficulty / ires.target)
     % (unsigned)hfres.version
+    % get_fork_extra_info(hfres.earliest_height, ires.height, ires.target)
     % (hfres.state == cryptonote::HardFork::Ready ? "up to date" : hfres.state == cryptonote::HardFork::UpdateNeeded ? "update needed" : "out of date, likely forked")
     % (unsigned)ires.outgoing_connections_count % (unsigned)ires.incoming_connections_count
   ;
diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index 9cd1893cf..e6fc11060 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -1025,7 +1025,7 @@ namespace cryptonote
 
 #if BLOCKCHAIN_DB == DB_LMDB
     const Blockchain &blockchain = m_core.get_blockchain_storage();
-    uint8_t version = req.version > 0 ? req.version : blockchain.get_ideal_hard_fork_version();
+    uint8_t version = req.version > 0 ? req.version : blockchain.get_next_hard_fork_version();
     res.version = blockchain.get_current_hard_fork_version();
     res.enabled = blockchain.get_hard_fork_voting_info(version, res.window, res.votes, res.threshold, res.earliest_height, res.voting);
     res.state = blockchain.get_hard_fork_state();