_ITERATOR_DEBUG_LEVEL error for libraries

Nelson_Piquet

I am having a Qt app with a few C++ libraries all built using Qmake & QtCreator on windows. I am using VisualStudio 2015 community edition which provides the C++ compiler to Qt on windows. By selecting debug option in bottom left corner, I generated debug libs out of all my library projects. But when I build my app in debug mode now, it results in following error.
LNK2038:mismatch detected for _ITERATOR_DEBUG_LEVEL value 0 doesnt match value 2 in main.obj

SGaist

IIRC you can use TARGET = $$qtLibraryTarget(MyLib)

SGaist

Hi,

AFAIK, it comes when you are mixing objects built for different type of builds. Did you clean everything before changing the build type ?

Nelson_Piquet

Yes I did. really strange. i just need the debug libs ONLY on windows so I am linking them on myapp.pro like this

LIBS += -L$$MyLib_build_location -lMyLib
Debug:win32: LIBS += -L$$MyLib_build_location -lMyLibD
INCLUDEPATH += $$MyLib_include_location/
DEPENDPATH += $$MyLib_include_location/
unix:PRE_TARGETDEPS += $$MyLib_build_location/MyLib.a
win32:PRE_TARGETDEPS += $$MyLib_build_location/MyLib.lib

Is above not correct ? Can you pls provide a sample ?

Nelson_Piquet

@SGaist Qt is not appending a D to the debug version of of lib. It names MyLib.lib even in debug version whereas I am expecting it to be MyLibD.lib. In pro file of my MyLib I have defined the following

TARGET = MyLib

Is it because of above line of code in MyLib.lib. Is there some way I can ensure that debug version of my lib gets a name with D appended to it ?

SGaist

IIRC you can use TARGET = $$qtLibraryTarget(MyLib)

Nelson_Piquet

@SGaist Thanks a lot. That solves my problem.