diff -Nur mongodb-src-r2.4.4.orig/src/mongo/db/db.cpp mongodb-src-r2.4.4/src/mongo/db/db.cpp
--- mongodb-src-r2.4.4.orig/src/mongo/db/db.cpp	2013-06-16 20:57:57.398198115 +0200
+++ mongodb-src-r2.4.4/src/mongo/db/db.cpp	2013-06-28 20:44:18.029137049 +0200
@@ -396,7 +396,11 @@
         boost::filesystem::path path( dbpath );
         for ( boost::filesystem::directory_iterator i( path );
                 i != boost::filesystem::directory_iterator(); ++i ) {
+        #if BOOST_VERSION >= 104400
             string fileName = boost::filesystem::path(*i).leaf().string();
+        #else
+            string fileName = boost::filesystem::path(*i).leaf();
+        #endif
             if ( boost::filesystem::is_directory( *i ) &&
                     fileName.length() && fileName[ 0 ] == '$' )
                 boost::filesystem::remove_all( *i );
diff -Nur mongodb-src-r2.4.4.orig/src/mongo/db/dur_journal.cpp mongodb-src-r2.4.4/src/mongo/db/dur_journal.cpp
--- mongodb-src-r2.4.4.orig/src/mongo/db/dur_journal.cpp	2013-06-16 20:57:57.418194086 +0200
+++ mongodb-src-r2.4.4/src/mongo/db/dur_journal.cpp	2013-06-28 20:44:18.032137434 +0200
@@ -190,7 +190,11 @@
                 for ( boost::filesystem::directory_iterator i( jdir );
                         i != boost::filesystem::directory_iterator();
                         ++i ) {
+                #if BOOST_VERSION >= 104400
                     string fileName = boost::filesystem::path(*i).leaf().string();
+                #else
+                    string fileName = boost::filesystem::path(*i).leaf();
+                #endif
                     if( anyFiles || str::startsWith(fileName, "j._") )
                         return true;
                 }
@@ -208,7 +212,11 @@
                 for ( boost::filesystem::directory_iterator i( getJournalDir() );
                         i != boost::filesystem::directory_iterator();
                         ++i ) {
+                #if BOOST_VERSION >= 104400
                     string fileName = boost::filesystem::path(*i).leaf().string();
+                #else
+                    string fileName = boost::filesystem::path(*i).leaf();
+                #endif
                     if( str::startsWith(fileName, "j._") ) {
                         try {
                             removeOldJournalFile(*i);
diff -Nur mongodb-src-r2.4.4.orig/src/mongo/db/dur_recover.cpp mongodb-src-r2.4.4/src/mongo/db/dur_recover.cpp
--- mongodb-src-r2.4.4.orig/src/mongo/db/dur_recover.cpp	2013-06-16 20:57:57.407196302 +0200
+++ mongodb-src-r2.4.4/src/mongo/db/dur_recover.cpp	2013-06-28 20:44:18.035137819 +0200
@@ -75,7 +75,11 @@
                     i != boost::filesystem::directory_iterator();
                     ++i ) {
                 boost::filesystem::path filepath = *i;
+            #if BOOST_VERSION >= 104400
                 string fileName = boost::filesystem::path(*i).leaf().string();
+            #else
+                string fileName = boost::filesystem::path(*i).leaf();
+            #endif
                 if( str::startsWith(fileName, "j._") ) {
                     unsigned u = str::toUnsigned( str::after(fileName, '_') );
                     if( m.count(u) ) {
@@ -87,8 +91,13 @@
             for( map<unsigned,boost::filesystem::path>::iterator i = m.begin(); i != m.end(); ++i ) {
                 if( i != m.begin() && m.count(i->first - 1) == 0 ) {
                     uasserted(13532,
-                    str::stream() << "unexpected file in journal directory " << dir.string()
-                      << " : " << boost::filesystem::path(i->second).leaf().string() << " : can't find its preceding file");
+                    str::stream() << "unexpected file in journal directory " << dir.string() << " : "
+                    #if BOOST_VERSION >= 104400
+                        << boost::filesystem::path(i->second).leaf().string()
+                    #else
+                        << boost::filesystem::path(i->second).leaf()
+                    #endif
+                        << " : can't find its preceding file");
                 }
                 files.push_back(i->second);
             }
diff -Nur mongodb-src-r2.4.4.orig/src/mongo/db/initialize_server_global_state.cpp mongodb-src-r2.4.4/src/mongo/db/initialize_server_global_state.cpp
--- mongodb-src-r2.4.4.orig/src/mongo/db/initialize_server_global_state.cpp	2013-06-16 20:57:57.384200935 +0200
+++ mongodb-src-r2.4.4/src/mongo/db/initialize_server_global_state.cpp	2013-06-28 20:44:18.042138718 +0200
@@ -166,8 +166,13 @@
 #endif
         if (!cmdLine.logpath.empty() && !isMongodShutdownSpecialCase) {
             fassert(16448, !cmdLine.logWithSyslog);
+        #if BOOST_VERSION >= 104400
             string absoluteLogpath = boost::filesystem::absolute(
                     cmdLine.logpath, cmdLine.cwd).string();
+        #else
+            string absoluteLogpath = boost::filesystem::complete(
+                    cmdLine.logpath, cmdLine.cwd).string();
+        #endif
             if (!initLogging(absoluteLogpath, cmdLine.logAppend)) {
                 cout << "Bad logpath value: \"" << absoluteLogpath << "\"; terminating." << endl;
                 return false;
diff -Nur mongodb-src-r2.4.4.orig/src/mongo/db/instance.cpp mongodb-src-r2.4.4/src/mongo/db/instance.cpp
--- mongodb-src-r2.4.4.orig/src/mongo/db/instance.cpp	2013-06-16 20:57:57.400197712 +0200
+++ mongodb-src-r2.4.4/src/mongo/db/instance.cpp	2013-06-28 20:44:18.037138076 +0200
@@ -891,13 +891,21 @@
                 i != boost::filesystem::directory_iterator(); ++i ) {
             if ( directoryperdb ) {
                 boost::filesystem::path p = *i;
+            #if BOOST_VERSION >= 104400
                 string dbName = p.leaf().string();
+            #else
+                string dbName = p.leaf();
+            #endif
                 p /= ( dbName + ".ns" );
                 if ( exists( p ) )
                     names.push_back( dbName );
             }
             else {
+            #if BOOST_VERSION >= 104400
                 string fileName = boost::filesystem::path(*i).leaf().string();
+            #else
+                string fileName = boost::filesystem::path(*i).leaf();
+            #endif
                 if ( fileName.length() > 3 && fileName.substr( fileName.length() - 3, 3 ) == ".ns" )
                     names.push_back( fileName.substr( 0, fileName.length() - 3 ) );
             }
diff -Nur mongodb-src-r2.4.4.orig/src/mongo/db/pdfile.cpp mongodb-src-r2.4.4/src/mongo/db/pdfile.cpp
--- mongodb-src-r2.4.4.orig/src/mongo/db/pdfile.cpp	2013-06-16 20:57:57.418194086 +0200
+++ mongodb-src-r2.4.4/src/mongo/db/pdfile.cpp	2013-06-28 20:44:18.045139103 +0200
@@ -30,6 +30,7 @@
 #include <algorithm>
 #include <boost/filesystem/operations.hpp>
 #include <boost/optional/optional.hpp>
+#include <boost/utility/in_place_factory.hpp>
 #include <list>
 
 #include "mongo/base/counter.h"
@@ -1916,7 +1917,11 @@
             virtual bool apply( const Path &p ) {
                 if ( !boost::filesystem::exists( p ) )
                     return false;
+            #if BOOST_VERSION >= 104400
                 boostRenameWrapper( p, newPath_ / ( p.leaf().string() + ".bak" ) );
+            #else
+                boostRenameWrapper( p, newPath_ / ( p.leaf() + ".bak" ) );
+            #endif
                 return true;
             }
             virtual const char * op() const {
diff -Nur mongodb-src-r2.4.4.orig/src/mongo/pch.h mongodb-src-r2.4.4/src/mongo/pch.h
--- mongodb-src-r2.4.4.orig/src/mongo/pch.h	2013-06-16 20:57:57.424192878 +0200
+++ mongodb-src-r2.4.4/src/mongo/pch.h	2013-06-28 20:44:18.046139231 +0200
@@ -47,6 +47,7 @@
 #define BOOST_FILESYSTEM_VERSION 3
 #include <boost/shared_ptr.hpp>
 #include <boost/smart_ptr.hpp>
+#include <boost/make_shared.hpp>
 #include <boost/function.hpp>
 #include <boost/bind.hpp>
 #include <boost/version.hpp>
diff -Nur mongodb-src-r2.4.4.orig/src/mongo/shell/shell_utils_extended.cpp mongodb-src-r2.4.4/src/mongo/shell/shell_utils_extended.cpp
--- mongodb-src-r2.4.4.orig/src/mongo/shell/shell_utils_extended.cpp	2013-06-16 20:57:57.487180186 +0200
+++ mongodb-src-r2.4.4/src/mongo/shell/shell_utils_extended.cpp	2013-06-28 20:44:18.043138846 +0200
@@ -58,7 +58,11 @@
             while ( i != end ) {
                 boost::filesystem::path p = *i;
                 BSONObjBuilder b;
+            #if BOOST_VERSION >= 104400
                 b << "name" << p.generic_string();
+            #else
+                b << "name" << p.string();
+            #endif
                 b.appendBool( "isDirectory", is_directory( p ) );
                 if ( ! boost::filesystem::is_directory( p ) ) {
                     try {
diff -Nur mongodb-src-r2.4.4.orig/src/mongo/tools/restore.cpp mongodb-src-r2.4.4/src/mongo/tools/restore.cpp
--- mongodb-src-r2.4.4.orig/src/mongo/tools/restore.cpp	2013-06-16 20:57:57.425192676 +0200
+++ mongodb-src-r2.4.4/src/mongo/tools/restore.cpp	2013-06-28 20:44:18.041138589 +0200
@@ -231,7 +231,11 @@
         LOG(2) << "drillDown: " << root.string() << endl;
 
         // skip hidden files and directories
+    #if BOOST_VERSION >= 104400
         if (root.leaf().string()[0] == '.' && root.leaf().string() != ".")
+    #else
+        if (root.leaf()[0] == '.' && root.leaf() != ".")
+    #endif
             return;
 
         if ( is_directory( root ) ) {
@@ -306,14 +310,24 @@
             ns += _db;
         }
         else {
+        #if BOOST_VERSION >= 104400
             ns = root.parent_path().filename().string();
+        #else
+            ns = root.parent_path().filename();
+        #endif
             if (ns.empty())
                 ns = "test";
         }
 
         verify( ns.size() );
 
-        string oldCollName = root.leaf().string(); // Name of the collection that was dumped from
+        // Name of the collection that was dumped from
+    #if BOOST_VERSION >= 104400
+        string oldCollName = root.leaf().string();
+    #else
+        string oldCollName = root.leaf();
+    #endif
+
         oldCollName = oldCollName.substr( 0 , oldCollName.find_last_of( "." ) );
         if (use_coll) {
             ns += "." + _coll;
@@ -352,7 +366,11 @@
             if (!boost::filesystem::exists(metadataFile.string())) {
                 // This is fine because dumps from before 2.1 won't have a metadata file, just print a warning.
                 // System collections shouldn't have metadata so don't warn if that file is missing.
+            #if BOOST_VERSION >= 104400
                 if (!startsWith(metadataFile.leaf().string(), "system.")) {
+            #else
+                if (!startsWith(metadataFile.leaf(), "system.")) {
+            #endif
                     log() << metadataFile.string() << " not found. Skipping." << endl;
                 }
             } else {
diff -Nur mongodb-src-r2.4.4.orig/src/mongo/util/mmap.cpp mongodb-src-r2.4.4/src/mongo/util/mmap.cpp
--- mongodb-src-r2.4.4.orig/src/mongo/util/mmap.cpp	2013-06-16 20:57:57.462185223 +0200
+++ mongodb-src-r2.4.4/src/mongo/util/mmap.cpp	2013-06-28 20:44:18.044138974 +0200
@@ -198,7 +198,11 @@
     void MongoFile::setFilename(const std::string& fn) {
         LockMongoFilesExclusive lk;
         verify( _filename.empty() );
+    #if BOOST_VERSION >= 104400
         _filename = boost::filesystem::absolute(fn).generic_string();
+    #else
+        _filename = boost::filesystem::system_complete(fn).string();
+    #endif
         MongoFile *&ptf = pathToFile[_filename];
         massert(13617, "MongoFile : multiple opens of same filename", ptf == 0);
         ptf = this;
@@ -206,8 +210,12 @@
 
     MongoFile* MongoFileFinder::findByPath(const std::string& path) const {
         return mapFindWithDefault(pathToFile,
-                                  boost::filesystem::absolute(path).generic_string(),
-                                  static_cast<MongoFile*>(NULL));
+        #if BOOST_VERSION >= 104400
+            boost::filesystem::absolute(path).generic_string(),
+        #else
+            boost::filesystem::system_complete(path).string(),
+        #endif
+            static_cast<MongoFile*>(NULL));
     }