[Development] Qt5 beta, MinGW: undefined reference to `WinMain at 16'

shane.kearns at accenture.com shane.kearns at accenture.com
Thu Jul 5 13:54:49 CEST 2012


Does the same problem happen if using qmake instead of qbs?
There is a qtmain.lib static library that should be added automatically to windows executables, which provides the WinMain entry point.

--

From: development-bounces+shane.kearns=accenture.com at qt-project.org [mailto:development-bounces+shane.kearns=accenture.com at qt-project.org] On Behalf Of Loaden
Sent: 05 July 2012 04:15
To: development
Subject: [Development] Qt5 beta, MinGW: undefined reference to `WinMain at 16'

main.cpp

#include <QCoreApplication>
int main(int argc, char **argv)
{
    QCoreApplication app(argc, argv);
    return app.exec();
}

test.qbp
import qbs.base 1.0
Application {
    name : "Test"
    Depends {
        name: "Qt.widgets"
    }
    files : [
        "main.cpp"
    ]
}


 MinGW-TDM32:

Found project file D:\qpSOFT\Projects\Test\test.qbp
loading project took:  79 ms
build graph took:  14 ms
for t86-tdm-mingw32-release:
  - [hpp, application] Test as t86-tdm-mingw32-release
compiling main.cpp
linking Test.exe
D:\qpSOFT\MinGW\TDM-MinGW32\bin/g++ -O2 -Wall -W D:/qpSOFT/Projects/Test/build/t86-tdm-mingw32-relea
se/.obj/Test/main.o -o D:/qpSOFT/Projects/Test/build/t86-tdm-mingw32-release/Test.exe -LD:/qpSOFT/Pr
ojects/BuildQt5-t86/qtbase/lib -lqtmain -lQtCore5 -lQtGui5 -lQtWidgets5
d:/qpsoft/mingw/tdm-mingw32/bin/../lib/gcc/mingw32/4.6.1/../../../libmingw32.a(main.o): In function
`main':
C:\MinGW\msys\1.0\src\mingwrt/../mingw/main.c:73: undefined reference to `WinMain at 16'<mailto:%60WinMain at 16'>
collect2: ld returned 1 exit status

MinGW-w64

D:\qpSOFT\MinGW\MinGW32\bin/g++ -m32 -O2 -Wall -W D:/qpSOFT/Projects/Test/build/m86-mingw32-release/
.obj/Test/main.o -o D:/qpSOFT/Projects/Test/build/m86-mingw32-release/Test.exe -LD:/qpSOFT/Projects/
BuildQt5-m86/qtbase/lib -lqtmain -lQtCore5 -lQtGui5 -lQtWidgets5
d:/qpsoft/mingw/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.6.3/../../../../i686-w64-mingw32/lib/../li
b/libmingw32.a(lib32_libmingw32_a-crt0_c.o): In function `main':
/home/ruben/mingw-w64/toolchain/src/mingw-w64/tags/v2.0.3/mingw-w64-crt/crt/crt0_c.c:18: undefined r
eference to `WinMain at 16'<mailto:%60WinMain at 16'>
collect2: ld returned 1 exit status
--

Please don't ask where I come from, It's a shame!
Best Regards
Yuchen


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