Integrating exiv2 with Qt

[saitej]

Sorry!

I have now added in the Path variable. The error code has changed to 139

[saitej]

@SGaist said in Integrating exiv2 with qt:

Did you also check that you are using the same compiler everywhere ? That's pretty important on Windows.

I have compiled it using msys and mingw. I am not able to get the mingw32 version

I am using Qt installed from qt-opensource-windows-x86-mingw492-5.6.1-1.exe file.

[SGaist]

Do you mean that you get that error 139 at startup ?

[saitej]

Sorry for the late reply!
Yes

During startup program exited with code 0x0000c139

[SGaist]

AFAIK, it means that it fails to load a .dll Do you have other dependencies ?

[saitej]

most probably no .. coz i gave local/bin also as the path

[SGaist]

local/bin ? On Windows ?

[saitej]

Ya ... mingw installation path!!

[SGaist]

Just to rule out the obvious, can you copy the exiv2 .dll in the same folder as the application and check whether the application starts ?

[saitej]

@SGaist

Sorry for the late reply!!

Ya .. i have tried that already but gives the same error!

In the mean time I actually have tried many libraries and all are having same problem. So I guess there is a problem in either the build or the way of including the library. I will brief you exactly what I have done and the versions.

Build:

• I have successfully build the source code in the qt project folder using --prefix option with msys terminal with mingw compiler.

mingw32-g++.exe (GCC) 5.3.0
mingw32-gcc-5.3.0.exe (GCC) 5.3.0

• I am using Qt installed from qt-opensource-windows-x86-mingw492-5.6.1-1.exe

• I have added mingw32-g++.exe (GCC) 5.3.0 as the compiler manually

• I have added the external library (libexiv2.dll.a) in Qtcreator via Add Library external library and static mode.

• I have also added to the PATH variable you have suggested.

The .pro reads this:

win32: LIBS += -L$$PWD/libs/exiv2build/lib/ -llibexiv2.dll

INCLUDEPATH += $$PWD/libs/exiv2build/include
DEPENDPATH += $$PWD/libs/exiv2build/include

It still gives me the error During startup program exited with code 0x0000c139.

Any suggestion on what might have gone wrong?

[SGaist]

Do I understand understand correctly that you are trying to run application with libraries built with two different versions of MinGW ?

[saitej]

No.

I have right now changed it to the same compiler by changing the kit

Also, I have used the dependency walker on the dll file and have found problems in these dependencies:

I have attached the dependencywalker image for the same:

[SGaist]

What image format is it ?

[saitej]

dependency walker

[SGaist]

Can you provide an image that is in a more mainstream format ?

[saitej]

I can send you in text format but it might be difficult to decipher.

[SGaist]

A screenshot of Dependency Walker's window might be simpler.

[SGaist]

From a look at the text file. There's at least one architecture mismatch. Double check libexiv2, if I saw things correctly, it's a 64bit library and you are using a 32bit Qt.

[saitej]

@SGaist

Sorry for revoking the topic after a long time.

I am using both 32 bit (QT and mingw). When I load the dll in dependency walker, these are the missing dlls.

Kernel32.dll
MSVCRT.DLL
PSAPI.DLL
USER32.DLL
WS2_32.DLL

I am unable to find these in the mingw bin folder also. So where can i get these dll's so that I can manually add them ?

[SGaist]

Except MSVCRT.dll which comes with the vcredist package from Microsoft, the others are all system dlls that you should not distribute.