C / C++ / MFC

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basic_ostringstream<char> _ostream;
_ostream.imbue(locale("en-US"));
_ostream << 1234;

m_serial(new QSerialPort(this),
  // sequence 1` st add HERE
   m_TAB_Ext(new A_BT_TAB_DIALOG_EXT)

/mnt/A_BT_DEC10/A_APR13_APR15/A_APR9_MAR7_MAR19_CLEAN/A_BT_LIBRARY/terminal_Bluetooth/mainwindow_Bluetooth_copy.cpp:3088: error: called object type 'A_BT_TAB_DIALOG_EXT *' is not a function or function pointer
mainwindow_Bluetooth_copy.cpp:3088:22: error: called object type 'A_BT_TAB_DIALOG_EXT *' is not a function or function pointer
            m_TAB_Ext(new A_BT_TAB_DIALOG_EXT())
            ~~~~~~~~~^

namespace Ui {
class A_BT_TAB_DIALOG_EXT;
// add forward declarations ??
class  QMdiArea;
}

class A_BT_TAB_DIALOG_EXT : public QWidget
{
    Q_OBJECT

public:
    explicit A_BT_TAB_DIALOG_EXT(QWidget *parent = nullptr);
    ~A_BT_TAB_DIALOG_EXT();

private:
    Ui::A_BT_TAB_DIALOG_EXT *ui;

    // 3 define / declare members / parameters

    QLabel *m_status = nullptr;
    QMdiArea *m_mdiarea = nullptr;
    QSerialPort *m_serial = nullptr;


};

I am using makefile / make DEFINES as common resource for project.

DEFINES += define PORT_CONFIGURATION
DEFINES += undefine SERIAL_SETUP
DEFINES += define STATUS_BAR




DEFINES += define TRACE_MENU
DEFINES += define TEST_SERIAL_PORT
DEFINES += define SERIAL_PORT_SETUP

DEFINES

# add Apr15
DEFINES += define DEBUG_MDI
DEFINES += define TRACE_CONSOLE

lib/libQt5SerialPort.so /home/nov25-1/Qt/5.15.2/gcc_64/lib/libQt5Core.so -lGL -lpthread   
/usr/bin/ld: /usr/bin/ld: DWARF error: invalid or unhandled FORM value: 0x23
mainwindow.o: in function `MainWindow::MainWindow()':
mainwindow.cpp:(.text+0x270): undefined reference to `ORIGINAL_TERMINAL_MainWindow::ORIGINAL_TERMINAL_MainWindow(QWidget*)'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[1]: Leaving directory '/mnt/A_BT_DEC10/BT__PROGRAMS/A_APR9_MAR7_MAR19_CLEAN/A_BT_LIBRARY/mdi'
make[1]: *** [Makefile:293: mdi] Error 1
make: *** [Makefile:569: sub----A_BT_LIBRARY-mdi-make_first] Error 2
13:13:54: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project A_Apr9_Mar7_MAR17_CLEAN (kit: Qt 5.15.2 (gcc_64))
When executing step "Make"
13:13:54: Elapsed time: 00:52.

bool breakouter = false;
for(int x=0;x<count;x++)
{
for(int y=0;y<count;y++)
{

breakouter = true;
break;

} 

if(breakouter)
break;

}