[cpp] Build hx/libs in developers obj directory

std/cpp/NativeFile.hx

@@ -1,6 +1,6 @@
 package cpp;
 
-@:buildXml('<import name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
+@:buildXml('<include name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
 extern class NativeFile
 {
    @:extern @:native("_hx_std_file_open")

std/cpp/NativeProcess.hx

@@ -1,6 +1,6 @@
 package cpp;
 
-@:buildXml('<import name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
+@:buildXml('<include name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
 extern class NativeProcess
 {
 

std/cpp/NativeRandom.hx

@@ -1,6 +1,6 @@
 package cpp;
 
-@:buildXml('<import name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
+@:buildXml('<include name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
 extern class NativeRandom
 {
 

std/cpp/NativeSocket.hx

@@ -1,6 +1,6 @@
 package cpp;
 
-@:buildXml('<import name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
+@:buildXml('<include name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
 extern class NativeSocket
 {
    @:extern @:native("_hx_std_socket_init")

std/cpp/NativeSys.hx

@@ -1,6 +1,6 @@
 package cpp;
 
-@:buildXml('<import name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
+@:buildXml('<include name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
 extern class NativeSys
 {
 

std/cpp/_std/EReg.hx

@@ -20,7 +20,7 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
-@:buildXml('<import name="${HXCPP}/src/hx/libs/regexp/Build.xml"/>')
+@:buildXml('<include name="${HXCPP}/src/hx/libs/regexp/Build.xml"/>')
 @:coreApi class EReg {
 
 	var r : Dynamic;

std/cpp/_std/haxe/zip/Compress.hx

@@ -21,7 +21,7 @@
  */
 package haxe.zip;
 
-@:coreApi @:buildXml('<import name="${HXCPP}/src/hx/libs/zlib/Build.xml" />')
+@:coreApi @:buildXml('<include name="${HXCPP}/src/hx/libs/zlib/Build.xml" />')
 class Compress {
 
 	var s : Dynamic;

std/cpp/_std/haxe/zip/Uncompress.hx

@@ -21,7 +21,7 @@
  */
 package haxe.zip;
 
-@:coreApi @:buildXml('<import name="${HXCPP}/src/hx/libs/zlib/Build.xml"/>')
+@:coreApi @:buildXml('<include name="${HXCPP}/src/hx/libs/zlib/Build.xml"/>')
 class Uncompress {
 	var s : Dynamic;
 

std/cpp/_std/sys/FileSystem.hx

@@ -27,6 +27,7 @@ private enum FileKind {
 	kother( k : String );
 }
 
+@:buildXml('<include name="${HXCPP}/src/hx/libs/std/Build.xml"/>')
 @:coreApi
 class FileSystem {
 

std/cpp/_std/sys/db/Mysql.hx

@@ -194,7 +194,7 @@ private class MysqlConnection implements sys.db.Connection {
 	private static var __use_date = Date;
 }
 
-@:buildXml('<import name="${HXCPP}/src/hx/libs/mysql/Build.xml"/>')
+@:buildXml('<include name="${HXCPP}/src/hx/libs/mysql/Build.xml"/>')
 @:coreApi class Mysql {
 
 	public static function connect( params : {

std/cpp/_std/sys/db/Sqlite.hx

@@ -197,7 +197,7 @@ private class SqliteResultSet implements ResultSet {
 
 }
 
-@:buildXml('<import name="${HXCPP}/src/hx/libs/sqlite/Build.xml"/>')
+@:buildXml('<include name="${HXCPP}/src/hx/libs/sqlite/Build.xml"/>')
 @:coreApi class Sqlite {
 
 	public static function open( file : String ) : Connection {