Link errors on a statically build Qt application

nitin777

i have statically configured version of qt.
when i try to build my application using these statically linked libs,i get these errors.

@error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl QString::~QString(void)" (_imp??1QString@@QAA@XZ) referenced in function "public: class QString __cdecl CHMIAbout::GetCopyrightMessage(void)" (?GetCopyrightMessage@CHMIAbout@@QAA?AVQString@@XZ)
1>HMIAbout.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl QString::QString(class QString const &)" (_imp??0QString@@QAA@ABV0@@Z) referenced in function "public: class QString __cdecl CHMIAbout::GetCopyrightMessage(void)" (?GetCopyrightMessage@CHMIAbout@@QAA?AVQString@@XZ)
1>HMIAbout.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl QString::QString(char const *)" (_imp??0QString@@QAA@PBD@Z) referenced in function "public: class QString __cdecl CHMIAbout::GetCopyrightMessage(void)" (?GetCopyrightMessage@CHMIAbout@@QAA?AVQString@@XZ)@

do anyone know how to fix this.

giesbert

this is a bit less information.
Can you please show us your project file.
And you are 100% sure, you have a Qt build for static linkage and that version is used?

nitin777

i am not exactly sure about the Qt static build.On static build i got these errors.

@QtGuid.lib(qimagereader.obj) : error LNK2019: unresolved external symbol "public: static bool __cdecl QGifHandler::canRead(class QIODevice *)" (?canRead@QGifHandler@@SA_NPAVQIODevice@@@Z) referenced in function "class QImageIOHandler * __cdecl createReadHandlerHelper(class QIODevice *,class QByteArray const &,bool,bool)" (?createReadHandlerHelper@@YAPAVQImageIOHandler@@PAVQIODevice@@ABVQByteArray@@_N2@Z)
1>QtGuid.lib(qimagereader.obj) : error LNK2019: unresolved external symbol "public: __cdecl QGifHandler::QGifHandler(void)" (??0QGifHandler@@QAA@XZ) referenced in function "class QImageIOHandler * __cdecl createReadHandlerHelper(class QIODevice *,class QByteArray const &,bool,bool)" (?createReadHandlerHelper@@YAPAVQImageIOHandler@@PAVQIODevice@@ABVQByteArray@@_N2@Z)
1>QtGuid.lib(qimagewriter.obj) : error LNK2001: unresolved external symbol "public: __cdecl QGifHandler::QGifHandler(void)" (??0QGifHandler@@QAA@XZ)
1>QtGuid.lib(jmemmgr.obj) : error LNK2019: unresolved external symbol getenv referenced in function jinit_memory_mgr
1>....\bin\qmlviewer.exe : fatal error LNK1120: 3 unresolved externals@

i used this to configure

@configure -platform win32-msvc2008 -xplatform wince60un20-mipsiv_fp-msvc2008 -opensource -release -qt-libjpeg -qt-gif -qt-libpng -no-qt3support -no-phonon -no-phonon-backend -xmlpatterns -exceptions -arch windowsce -nomake examples -nomake demos -static@

is there any other changes to be done to the qmake.conf and project settings.??

giesbert

Hi nitin777, gif could be in an imageplugin, I'm not 100% sure. so perhaps, you need that plugin for static binding. I never tried static binding with MSVC compiler.

You could search the Qt source for where the QGifHandler class is.

ppckiller

I've got the similar error while linking my projetc with Qt in a static way.
After 2 hours to understand the reason of the error. I found that the cause was because the directive Q_CORE_EXPORT should not be define with __declspec(dllexport). So to solve the problem I used the declaration of QT_NODLL. I've passed -DQT_NODLL to the compilator of my makefile. After the compilation was ok

ppckiller

I've got the similar error while linking my projetc with Qt in a static way.
After 2 hours to understand the reason of the error. I found that the cause was because the directive Q_CORE_EXPORT should not be define with __declspec(dllexport). So to solve the problem I used the declaration of QT_NODLL. I've passed -DQT_NODLL to the compilator of my makefile. After the compilation was ok

? This user is from outside of this forum

This post is deleted!

? This user is from outside of this forum

This post is deleted!