CODEWITHSUNDEEP
qtdllmingwqt-creator
Tomáš Zato
Tomáš Zato

Reputation: 53257

Qt deployment for windows copies incorrect dll for mingw

I set this build step to add deployment DLLs to my release folder:

Command: %{Qt:QT_INSTALL_BINS}/windeployqt.exe
Arguments: "%{CurrentProject:NativePath}\bin\server.exe" --no-translations

The correct QtXXXX.dll files are copied, but incorrect libstdc++-6.dll is added. The correct one is located at QTDIR/bin/libstdc++-6.dll, but instead, windeployqt.exe copies this DLL file from C:\MinGW\bin. If I try to run the application, I get this error:

image description

How can I tell windeployqt.exe to copy mingw files from %{Qt:QT_INSTALL_BINS} instead of my MinGW installation folder?

The version of Qt I am using is Qt5.6.0-MinGW with mingw49_32.

Upvotes: 2

Views: 1322

Answers (1)

felix
felix

Reputation: 59

If you don't use the batch file that sets up the environment and comes with Qt then just make sure that the first compiler g++.exe found be windeployqt.exe is the one coming with Qt and not the one that got installed with MinGW. This way the correct library will get copied.

As an example from my own current installation:
Qt is installed to C:\Qt\Qt5.8.0 and MinGW to C:\MinGW. Hence I add C:\Qt\Qt5.8.0\Tools\mingw530_32\bin before C:\MinGW\bin to my PATH. These two paths each contain a compiler g++.exe.

Upvotes: 2

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