Hi Our application builds fine on Ubuntu 12.04 LTS, using gcc 4.6.3. However, when I attempt to build on Fedora 19, which uses gcc 4.8.2 I see: g++ -I../../Kernel -Wall -m64 -O3 -c -o FileSystem.o FileSystem.cpp FileSystem.cpp: In static member function ‘static std::string FileSystem::currentDir()’: FileSystem.cpp:108:34: error: ‘get_current_dir_name’ was not declared in this scope p = get_current_dir_name(); Please will someone explain how to fix this? Best regards David