d:/gcc/arm-kgp-eabi_cetonia/bin/../lib/gcc/arm-kgp-eabi/6.0.0/../../../../arm-kgp-eabi/bin/ld.exe: cannot find crtfastmath.o:
No such file or directory
collect2.exe: error: ld returned 1 exit status
make: *** [UPKB_G.elf] Error 1

class Interface {
    virtual send() = 0;
    virtual receive() = 0;
};

class SerialInterface : public Interface {
    send();
    receive();
};

class UsbInterface : public Interface {
    send();
    receive();
};

class MySuperRobot
{
    Interface *interface;

    init(Interface *ifp) {
       interface = ifp;
       interface->send() || interface->receive();
    }
};

template<....>
class SerialInterface  {
    send() { blah }
    receive() { vah }
};

template<....>
class UsbInterface {
    send() { blah }
    receive() { vah }
};

template <class Interface>
class MySuperRobot
{
    Interface interface;

    test() { interface.send() || interface.receive(); }
};

  .data  : AT ( _etext )
    {
        . = ALIGN(4);
        /* This is used by the startup in order to initialize the .data section */
        _data_start = .;
        _data_start_flash = _etext;

        *(.data)
        *(.data.*)

        . = ALIGN(4);
        /* This is used by the startup in order to initialize the .data section */
        _data_end = .;
    } >RAM
    
    
    .settings  : AT ( _etext + _data_end - _data_start)
    {
        . = ALIGN(4);
        /* This is used by the startup in order to initialize the .settings section */
        _settings_start = .;
        _settings_start_flash = _etext + _data_end - _data_start;

        *(.settings)
        *(.settings.*)

        . = ALIGN(4);
        /* This is used by the startup in order to initialize the .settings section */
        _settings_end = .;
    } >RAM