diff --git a/src/bench/bench.h b/src/bench/bench.h
index 12167a293a..5bd3311170 100644
--- a/src/bench/bench.h
+++ b/src/bench/bench.h
@@ -10,6 +10,7 @@
 #include <limits>
 #include <map>
 #include <string>
+#include <cstdint>
 
 #include <boost/preprocessor/cat.hpp>
 #include <boost/preprocessor/stringize.hpp>
diff --git a/src/rpc/protocol.cpp b/src/rpc/protocol.cpp
index 6db357c2a0..7d517e3bb3 100644
--- a/src/rpc/protocol.cpp
+++ b/src/rpc/protocol.cpp
@@ -75,7 +75,7 @@ static fs::path GetAuthCookieFile(bool temp=false)
         arg += ".tmp";
     }
     fs::path path(arg);
-    if (!path.is_complete()) path = GetDataDir() / path;
+    if (!path.is_absolute()) path = GetDataDir() / path;
     return path;
 }
 
diff --git a/src/support/lockedpool.h b/src/support/lockedpool.h
index e78791ca1b..7199bf25aa 100644
--- a/src/support/lockedpool.h
+++ b/src/support/lockedpool.h
@@ -11,6 +11,7 @@
 #include <map>
 #include <mutex>
 #include <memory>
+#include <stdexcept>
 
 /**
  * OS-dependent allocation and deallocation of locked/pinned memory pages.
diff --git a/src/test/cuckoocache_tests.cpp b/src/test/cuckoocache_tests.cpp
index 1afa524bbc..03bada9ca7 100644
--- a/src/test/cuckoocache_tests.cpp
+++ b/src/test/cuckoocache_tests.cpp
@@ -8,6 +8,7 @@
 #include "test/test_raven.h"
 #include "random.h"
 #include <thread>
+#include <deque>
 
 /** Test Suite for CuckooCache
  *
diff --git a/src/util.cpp b/src/util.cpp
index 7542cc2d75..a5ed1ec0c3 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -620,7 +620,7 @@ void ClearDatadirCache()
 fs::path GetConfigFile(const std::string &confPath)
 {
     fs::path pathConfigFile(confPath);
-    if (!pathConfigFile.is_complete())
+    if (!pathConfigFile.is_absolute())
         pathConfigFile = GetDataDir(false) / pathConfigFile;
 
     return pathConfigFile;
@@ -657,7 +657,7 @@ void ArgsManager::ReadConfigFile(const std::string &confPath)
 fs::path GetPidFile()
 {
     fs::path pathPidFile(gArgs.GetArg("-pid", RAVEN_PID_FILENAME));
-    if (!pathPidFile.is_complete()) pathPidFile = GetDataDir() / pathPidFile;
+    if (!pathPidFile.is_absolute()) pathPidFile = GetDataDir() / pathPidFile;
     return pathPidFile;
 }
 
diff --git a/src/wallet/db.cpp b/src/wallet/db.cpp
index 26e0b1ca1e..3f553a1562 100644
--- a/src/wallet/db.cpp
+++ b/src/wallet/db.cpp
@@ -267,7 +267,7 @@ bool CDB::VerifyEnvironment(const std::string& walletFile, const fs::path& dataD
     LogPrintf("Using wallet %s\n", walletFile);
 
     // Wallet file must be a plain filename without a directory
-    if (walletFile != fs::basename(walletFile) + fs::extension(walletFile))
+    if (walletFile != fs::path(walletFile).filename())
     {
         errorStr = strprintf(_("Wallet %s resides outside data directory %s"), walletFile, dataDir.string());
         return false;
@@ -706,7 +706,7 @@ bool CWalletDBWrapper::Backup(const std::string& strDest)
                     pathDest /= strFile;
 
                 try {
-                    fs::copy_file(pathSrc, pathDest, fs::copy_option::overwrite_if_exists);
+                    fs::copy_file(pathSrc, pathDest, fs::copy_options::overwrite_existing);
                     LogPrintf("copied %s to %s\n", strFile, pathDest.string());
                     return true;
                 } catch (const fs::filesystem_error& e) {