diff --git a/CMakeLists.txt b/CMakeLists.txt
index ef394ec..3e2b79b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -47,7 +47,7 @@ endif(ENABLE_SQLITE3)
 
 # Find postgresql
 if(ENABLE_POSTGRESQL)
-	find_library(POSTGRESQL_LIBRARY pq)
+	find_library(POSTGRESQL_LIBRARY NAMES pq libpq)
 	find_path(POSTGRESQL_INCLUDE_DIR libpq-fe.h PATH_SUFFIXES postgresql)
 	message (STATUS "postgresql library: ${POSTGRESQL_LIBRARY}")
 	message (STATUS "postgresql headers: ${POSTGRESQL_INCLUDE_DIR}")
diff --git a/Minetestmapper/CMakeLists.txt b/Minetestmapper/CMakeLists.txt
index 8abdf9d..2d25e0c 100644
--- a/Minetestmapper/CMakeLists.txt
+++ b/Minetestmapper/CMakeLists.txt
@@ -64,19 +64,32 @@ if(WIN32)
 
 	add_library (wingetopt STATIC ../wingetopt/src/getopt.c)
 endif()
+
 set(wingetopt_lib "")
 if(WIN32)
 set(wingetopt_lib wingetopt)
 endif()
+
 set(leveldb_lib "")
 if(USE_LEVELDB)
 set(leveldb_lib ${LEVELDB_LIBRARY})
 endif()
+
+set(postgresql_lib "")
+if(USE_POSTGRESQL)
+	set(postgresql_lib ${POSTGRESQL_LIBRARY})
+	if(WIN32)
+		# the libpq database driver requires htonl which is in the Ws2_32 library
+		set(postgresql_lib ${POSTGRESQL_LIBRARY} "Ws2_32.lib")
+	endif(WIN32)
+endif()
+
+
 #link_directories (../wingetopt)
 # Fügen Sie der ausführbaren Datei für dieses Projekt eine Quelle hinzu.
 add_executable (Minetestmapper ${sources})
 set_target_properties(Minetestmapper PROPERTIES COMPILE_FLAGS -DBUILDER_STATIC_DEFINE)
-target_link_libraries(Minetestmapper ${wingetopt_lib} ${LIBGD_LIBRARY} ${ZLIB_LIBRARY} ${SQLITE3_LIBRARY} ${leveldb_lib})
+target_link_libraries(Minetestmapper ${wingetopt_lib} ${LIBGD_LIBRARY} ${ZLIB_LIBRARY} ${SQLITE3_LIBRARY} ${leveldb_lib} ${postgresql_lib})
 # TODO: Fügen Sie bei Bedarf Tests und Installationsziele hinzu.
 
 
diff --git a/Minetestmapper/TileGenerator.cpp b/Minetestmapper/TileGenerator.cpp
index 0babea5..c5e9620 100644
--- a/Minetestmapper/TileGenerator.cpp
+++ b/Minetestmapper/TileGenerator.cpp
@@ -478,7 +478,7 @@ void TileGenerator::openDb(const std::string &input)
 #endif
 	}
 	else if (m_backend == "postgresql") {
-#if USE_POSTGRESQL
+#ifdef USE_POSTGRESQL
 		DBPostgreSQL *db;
 		m_db = db = new DBPostgreSQL(input);
 #else
@@ -494,7 +494,7 @@ void TileGenerator::openDb(const std::string &input)
 #endif
 	}
 	else if (m_backend == "redis") {
-#if USE_REDIS
+#ifdef USE_REDIS
 		m_db = new DBRedis(input);
 		m_scanEntireWorld = true;
 #else
diff --git a/Minetestmapper/db-postgresql.cpp b/Minetestmapper/db-postgresql.cpp
index 3630e29..0e44cee 100644
--- a/Minetestmapper/db-postgresql.cpp
+++ b/Minetestmapper/db-postgresql.cpp
@@ -1,14 +1,16 @@
 
-#if USE_POSTGRESQL
-
-
-
 #include "db-postgresql.h"
+
+#ifdef USE_POSTGRESQL
+
 #include <stdexcept>
-#include <unistd.h> // for usleep
-#include <arpa/inet.h>
+#if _WIN32
+#include <Winsock2.h> // htonl
+#else
+#include <arpa/inet.h> // htonl
+#endif
+
 #include "Settings.h"
-#include "types.h"
 
 #define BLOCKPOSLIST_QUERY_COMPAT	"SELECT x, y, z FROM blocks"
 #define BLOCKPOSLISTBOUNDED_QUERY_COMPAT "SELECT x, y, z FROM blocks WHERE x BETWEEN $1 AND $2 AND y BETWEEN $3 AND $4 AND z BETWEEN $5 AND $6"
@@ -149,9 +151,9 @@ const DB::BlockPosList &DBPostgreSQL::processBlockPosListQueryResult(PGresult *r
 }
 
 
-DB::Block DBPostgreSQL::getBlockOnPos(const BlockPos &pos)
+const DB::Block DBPostgreSQL::getBlockOnPos(const BlockPos &pos)
 {
-	Block block(pos,reinterpret_cast<const unsigned char *>(""));
+	Block block(pos, {});
 	
 	m_blocksQueriedCount++;
 
@@ -165,7 +167,7 @@ DB::Block DBPostgreSQL::getBlockOnPos(const BlockPos &pos)
 			+ (result ? PQresultErrorMessage(result) : "(result was NULL)"));
 
 	if (PQntuples(result) != 0) {
-		block = Block(pos, ustring(reinterpret_cast<unsigned char *>(PQgetvalue(result, 0, 0)), PQgetlength(result, 0, 0)));
+		block = Block(pos, reinterpret_cast<unsigned char *>(PQgetvalue(result, 0, 0)), PQgetlength(result, 0, 0));
 		m_blocksReadCount++;
 	}
 
diff --git a/Minetestmapper/db-postgresql.h b/Minetestmapper/db-postgresql.h
index 8065c81..7b915d8 100644
--- a/Minetestmapper/db-postgresql.h
+++ b/Minetestmapper/db-postgresql.h
@@ -2,7 +2,7 @@
 
 #include "config.h"
 
-#if USE_POSTGRESQL
+#ifdef USE_POSTGRESQL
 
 #include "db.h"
 #include <libpq-fe.h>
@@ -10,18 +10,15 @@
 #include <string>
 #include <sstream>
 
-#include "types.h"
 
 class DBPostgreSQL : public DB {
-	typedef std::unordered_map<int64_t, ustring>  BlockCache;
-
 public:
 	DBPostgreSQL(const std::string &mapdir);
 	virtual int getBlocksQueriedCount(void);
 	virtual int getBlocksReadCount(void);
 	virtual const BlockPosList &getBlockPosList();
 	virtual const BlockPosList &getBlockPosList(BlockPos minPos, BlockPos maxPos);
-	virtual Block getBlockOnPos(const BlockPos &pos);
+	virtual const Block getBlockOnPos(const BlockPos &pos);
 	~DBPostgreSQL();
 private:
 	int m_blocksQueriedCount;