[QTBUG-51745] 'multiple definition' errors while building QtSerialBus examples on Windows - Qt Bug Tracker

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Details

Type: Bug
Status: Closed
Priority: P1: Critical
Resolution: Done
Affects Version/s: 5.6.0
Fix Version/s: 5.6.1
Component/s: SerialBus: CAN Bus
Labels:
None
Environment:
- Windows 10 x64,
- MinGW-W64 x86_64 5.3.0,
- Qt 5.7-dev (http://code.qt.io/cgit/qt/qt5.git/log/?h=5.7 ).

Description

Hi, everyone,

After applying https://codereview.qt-project.org/#/c/149611/ to branch 5.7 and running static build with MinGW-W64 got errors:

C:\libQT-5.7-dev\src\qtserialbus\lib\libQt5SerialBus.a(qmodbusdevice.o):qmodbusdevice.cpp:(.text+0x2b0): multiple definition of `QT_MODBUS()'
.obj/release/mainwindow.o:mainwindow.cpp:(.text+0x870): first defined here
C:\libQT-5.7-dev\src\qtserialbus\lib\libQt5SerialBus.a(qmodbusdevice.o):qmodbusdevice.cpp:(.text+0x320): multiple definition of `QT_MODBUS_LOW()'
.obj/release/mainwindow.o:mainwindow.cpp:(.text+0x8e0): first defined here
collect2.exe: error: ld returned 1 exit status

(log added in attachment).

Regards,

Alexander