Attempt to compile QGNSS for GNU/Linux

Although a Qt5 application, the QGNSS source code includes many Microsoft specific C++ compiler features not availabe in GCC (g++) and hardly available in LLVM (clang++). Although the executable is generated, it is not functional at the moment since most functions in QGNSS_FW_UPG/QGNSS_FW_UPG/uart/QG_Uart_win.cpp have been commented out, meaning serial communication is not functional. Other functions that were removed to reach compilation but should be inserted back are

$ grep -r JMF * | grep cpp
QGNSS/deviation_map.cpp:    ui->customPlot->axisRect(0)->setAutoMargins(QCP::msNone); // 去除边框 JMF
QGNSS/device_info.cpp://    MSG* msg = reinterpret_cast<MSG*>(message);  // JMF
QGNSS/device_info.cpp://    if (msg->message == WM_DEVICECHANGE)         // JMF
QGNSS_FW_UPG/QGNSS_FW_UPG/uart/QG_Uart_win.cpp:#include "QG_Uart.h"   // JMF this whole file has been broken and must be adapted to unix tty

It might be wise to diff -r this directory with the original repository to check that the modifications to get the software to compile under GNU/Linux kept the original meaning.

Requirements:

Dependencies (Debian GNU/Linux unstable): at least

sudo apt install qtwebengine5-dev qttools5-dev

and a functional clang/clang++ compiler (sudo apt install clang after of course at least build-essential).

Compiling:

qmake QGNSS.pro  # generate Makefile in current directory
make             # generate Makefile in QGNSS: check that CC = clang and CXX = clang++
./DevRuntimeEnv/QGNSS  # execute application

Version compiled and executed on Debian GNU/Linux.

At the moment QGNSSLog is failing to compile due to the dependency with QNMEA/3rdpart which might be provided as binary library only