Fix commit "Change the way how the database is exported to file" :

produce a fail to build on OSX

sources/dataBase/projectdatabase.cpp

@@ -530,7 +530,7 @@ sqlite3 *projectDataBase::sqliteHandle(QSqlDatabase *db)
 {
 	//sqlite 3 lib isn't availlable for the moment on macosx
 	//need some help to add sqlite3 lib on macosx compilation
-#if Q_OS_MACOS
+#ifdef Q_OS_MACOS
 	return nullptr;
 #else
 	sqlite3 *handle = nullptr;
@@ -562,7 +562,9 @@ void projectDataBase::exportDb(projectDataBase *db,
 	if (caption_.isEmpty()) {
 		caption_ = tr("Exporter la base de données interne du projet");
 	}
-
+#ifdef Q_OS_MACOS
+	return;
+#else
 	auto dir_ = dir;
 	if(dir_.isEmpty()) {
 		dir_ = db->project()->filePath();
@@ -602,4 +604,5 @@ void projectDataBase::exportDb(projectDataBase *db,
 		file_db.close();
 	}
 	QSqlDatabase::removeDatabase(connection_name);
+#endif
 }