I compiled my project as 'release' and it's still depends on QtSvgd4.dll,QtGuid4.dll,QtCored4dll

Curtwagner1984

Hello,

I'm trying to make a release version of my project, I compiled it as 'release' but it's still dependent on the dll's mentioned in the title (Doesn't start if they are not present in the exe dir).

How can I narrow down why this happens? What modules/ pro/ pri files I need to look in to, to stop this dependency.
What should I look for in those files?

Thank you!

JonB

@Curtwagner1984
You might run whatever version of Dependency Walker currently runs on your version of Windows to see where these ...d.dll files are being requested from.

Curtwagner1984

This is exactly what I'm trying to do but so far I'm lost.

I've printed out the imports my depencey walker sees:

Import from module QtCored4.dll :
         Function _Z11qt_assert_xPKcS0_S0_i
         Function _Z13qFlagLocationPKc
         Function _Z17qt_message_output9QtMsgTypePKc
         Function _Z21qRegisterResourceDataiPKhS0_S0_
         Function _Z23qUnregisterResourceDataiPKhS0_S0_
         Function _Z5qFreePv
         Function _Z6qDebugPKcz
         Function _Z7qMemSetPvij
         Function _Z8qWinMainP11HINSTANCE__S0_PciRiR7QVectorIS1_E
         Function _Z9qBadAllocv
         Function _Z9qt_assertPKcS0_i
         Function _ZN10QByteArray7reallocEi
         Function _ZN11QMetaObject18connectSlotsByNameEP7QObject
         Function _ZN11QMetaObject8activateEP7QObjectPKS_iPPv
         Function _ZN11QTextStream8readLineEx
         Function _ZN11QTextStreamC1EP7QString6QFlagsIN9QIODevice12OpenModeFlagEE
         Function _ZN11QTextStreamC1EP9QIODevice
         Function _ZN11QTextStreamD1Ev
         Function _ZN11QTextStreamlsEPKc
         Function _ZN11QTextStreamlsEPKv
         Function _ZN11QTextStreamlsERK7QString
         Function _ZN11QTextStreamlsEc
         Function _ZN11QTextStreamlsEd
         Function _ZN11QTextStreamlsEi
         Function _ZN11QTextStreamlsEs
         Function _ZN11QVectorData10reallocateEPS_iii
         Function _ZN11QVectorData11shared_nullE
         Function _ZN11QVectorData4freeEPS_i
         Function _ZN11QVectorData4growEiiib
         Function _ZN11QVectorData8allocateEii
         Function _ZN16QCoreApplication13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
         Function _ZN16QCoreApplication9translateEPKcS1_S1_NS_8EncodingE
         Function _ZN21QPersistentModelIndexC1ERKS_
         Function _ZN21QPersistentModelIndexD1Ev
         Function _ZN4QDirC1ERK7QString
         Function _ZN4QDirD1Ev
         Function _ZN4QUrl13fromLocalFileERK7QString
         Function _ZN4QUrlC1ERK7QStringNS_11ParsingModeE
         Function _ZN4QUrlD1Ev
         Function _ZN5QChar9fromAsciiEc
         Function _ZN5QCharC1Ec
         Function _ZN5QFile4openE6QFlagsIN9QIODevice12OpenModeFlagEE
         Function _ZN5QFile5closeEv
         Function _ZN5QFile6existsERK7QString
         Function _ZN5QFileC1ERK7QString
         Function _ZN5QFileD1Ev
         Function _ZN5QTime11currentTimeEv
         Function _ZN5QTime7isValidEiiii
         Function _ZN5QTimeC1Eiiii
         Function _ZN6QTimer11setIntervalEi
         Function _ZN6QTimer4stopEv
         Function _ZN6QTimer5startEi
         Function _ZN6QTimer5startEv
         Function _ZN6QTimerC1EP7QObject
         Function _ZN6QTimerD1Ev

To try to search for the functions imported from the module in my code, but I see many standard QT functions there like start timer, QTextStream etc...

JonB

@Curtwagner1984
This is not the kind of output I was looking for. The old Dependency Walker was a visual tool, and it would have shown us which DLLs were calling for the *D.DLLs we want to track down. Your "function imports" are not useful in this regard.

What "Dependency Walker" tool do you use? Can you ask it to display just the DLL-file to DLL-file dependencies, not a listing of functions/imports? Or find a "Dependency Walker" that works for your version of Windows if it is Win 10+?

Curtwagner1984

You're talking about this:
alt text

So far all the Qt modules I see are without the d. But there are a lot to look through and there is no search function I can see.

Curtwagner1984

Is there something in the qmake files, configuration files etc, that might forces the build to require debug files like QtCored4.dll?

JonB

@Curtwagner1984 said in I compiled my project as 'release' and it's still depends on QtSvgd4.dll,QtGuid4.dll,QtCored4dll:

You're talking about this:

Indeed. But I thought it no longer works under Win 10+. Yes you have to look through!

If you cannot find them:

, I compiled it as 'release' but it's still dependent on the dll's mentioned in the title (Doesn't start if they are not present in the exe dir).

Make absolutely sure you really are running the build release .exe, not somehow still the debug one! Because that screenshot shows it using non-D versions of the DLLs.

Curtwagner1984

Make absolutely sure you really are running the build release .exe

I deleted the whole build folder before trying. And the folder name Qt Creator generates has a 'Release' postfix in the name. And there is only one exe file inside.

In the GUI interface of the dependency walker I couldn't find a single mention of the D version of the DLLs. However as I said before, when I print the function calls, it does use the D version. And if I just don't copy over the D version of the DLL the exe won't start.

Christian Ehrlicher

@Curtwagner1984 said in I compiled my project as 'release' and it's still depends on QtSvgd4.dll,QtGuid4.dll,QtCored4dll:

I couldn't find a single mention of the D version of the DLLs

Are you sure? Please go to the lower window, sort by name and look if there's really no dependency. Do you maybe dynamically load a plugin which depends on the debug libs?

Curtwagner1984

@Christian-Ehrlicher said in I compiled my project as 'release' and it's still depends on QtSvgd4.dll,QtGuid4.dll,QtCored4dll:

Do you maybe dynamically load a plugin which depends on the debug libs?

Maybe, How can if find this out? This isn't a project I wrote from the ground up. I inherited it from someone else.

Now when I think about it, I think I saw somewhere in the qMake files that it links against a debug version of Qwt no matter what type of build is used.

Is it possible that this is the dll that requires the debug versions of Qtcore?

Christian Ehrlicher

@Curtwagner1984 said in I compiled my project as 'release' and it's still depends on QtSvgd4.dll,QtGuid4.dll,QtCored4dll:

Is it possible that this is the dll that requires the debug versions of Qtcore?

Yes, but as I said - look in DependencyWalker in the bottom window, sort by name and you will see the Qt debug dlls for sure then. Double click on them (or right click, don't remember) to reveal from where the dependency comes from.

Curtwagner1984

@Christian-Ehrlicher
Yes indeed, you were right:
alt text

It's indeed because of the QWTD.DLL

Christian Ehrlicher

You must not mix debug and release dlls on windows - fix it by using the release qwt dll.