Linking error while compiling taglib in Qt 6

[Pbaodoge]

Hello!
I'm trying to compile taglib with my Qt project and it doesn't work for me.
Before, I had successfully built taglib with CMake and mingw32-make provided by Qt. Everything works perfectly.
But when I build my qt project, there are a lot of linking errors:

Here is my project configuration file:

QT       += core gui \
            multimedia

DEFINES += TAGLIB_STATIC

INCLUDEPATH += G:/Qt/metadata2/taglib-1.12
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/ape
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/asf
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/flac
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/it
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/mod
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/mp4
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/mpc
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/mpeg
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/ogg
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/riff
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/s3m
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/toolkit
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/trueaudio
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/wavpack
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/xm
#sub directories
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/mpeg/id3v1
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/mpeg/id3v2
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/mpeg/id3v2/frames
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/ogg/flac
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/ogg/opus
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/ogg/speex
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/ogg/vorbis
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/riff/aiff
INCLUDEPATH += G:/Qt/metadata2/taglib-1.12/taglib/riff/wav

DEPENDPATH += G:/Qt/metadata2/taglib-1.12/taglib

#libs
LIBS += -L'G:/Qt/metadata2/taglib-1.12/build/taglib/' -llibtag

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++17

SOURCES += \
    main.cpp \
    mainwindow.cpp

HEADERS += \
    mainwindow.hpp

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

Here is my main.cpp file:

#include <iostream>
#include <stdlib.h>

#include <tbytevector.h>

#include <mpegfile.h>

#include <id3v2tag.h>
#include <id3v2frame.h>
#include <id3v2header.h>
#include <commentsframe.h>

#include <id3v1tag.h>

#include <apetag.h>
#include <QApplication>
using namespace std;
using namespace TagLib;

int main(int argc, char *argv[])
{
  // process the command line args
    QApplication a(argc, argv);


  for(int i = 1; i < argc; i++) {

    cout << "******************** \"" << argv[i] << "\"********************" << endl;

    MPEG::File f(argv[i]);

    ID3v2::Tag *id3v2tag = f.ID3v2Tag();

    if(id3v2tag) {

      cout << "ID3v2."
           << id3v2tag->header()->majorVersion()
           << "."
           << id3v2tag->header()->revisionNumber()
           << ", "
           << id3v2tag->header()->tagSize()
           << " bytes in tag"
           << endl;

      ID3v2::FrameList::ConstIterator it = id3v2tag->frameList().begin();
      for(; it != id3v2tag->frameList().end(); it++) {
        cout << (*it)->frameID();

        if(ID3v2::CommentsFrame *comment = dynamic_cast<ID3v2::CommentsFrame *>(*it))
          if(!comment->description().isEmpty())
            cout << " [" << comment->description() << "]";

        cout << " - \"" << (*it)->toString() << "\"" << endl;
      }
    }
    else
      cout << "file does not have a valid id3v2 tag" << endl;

    cout << endl << "ID3v1" << endl;

    ID3v1::Tag *id3v1tag = f.ID3v1Tag();

    if(id3v1tag) {
      cout << "title   - \"" << id3v1tag->title()   << "\"" << endl;
      cout << "artist  - \"" << id3v1tag->artist()  << "\"" << endl;
      cout << "album   - \"" << id3v1tag->album()   << "\"" << endl;
      cout << "year    - \"" << id3v1tag->year()    << "\"" << endl;
      cout << "comment - \"" << id3v1tag->comment() << "\"" << endl;
      cout << "track   - \"" << id3v1tag->track()   << "\"" << endl;
      cout << "genre   - \"" << id3v1tag->genre()   << "\"" << endl;
    }
    else
      cout << "file does not have a valid id3v1 tag" << endl;

    APE::Tag *ape = f.APETag();

    cout << endl << "APE" << endl;

    if(ape) {
      for(APE::ItemListMap::ConstIterator it = ape->itemListMap().begin();
          it != ape->itemListMap().end(); ++it)
      {
        if((*it).second.type() != APE::Item::Binary)
          cout << (*it).first << " - \"" << (*it).second.toString() << "\"" << endl;
        else
          cout << (*it).first << " - Binary data (" << (*it).second.binaryData().size() << " bytes)" << endl;
      }
    }
    else
      cout << "file does not have a valid APE tag" << endl;

    cout << endl;
  }
  return a.exec();
}

Is there anything wrong with my project configuration file? Please help me.
Thanks a lot in advance!

[jsulm]

@Pbaodoge said in Linking error while compiling taglib in Qt 6:

LIBS += -L'G:/Qt/metadata2/taglib-1.12/build/taglib/' -llibtag

On Windows this should be:

LIBS += "G:/Qt/metadata2/taglib-1.12/build/taglib/libtag.lib"

Please see https://doc.qt.io/qt-6/qmake-variable-reference.html#libs

[Pbaodoge]

@jsulm said in Linking error while compiling taglib in Qt 6:

LIBS += "G:/Qt/metadata2/taglib-1.12/build/taglib/libtag.lib"

It doesn't work at all. In addition, the binary file was libtag.dll and libtag.dll.a

And the compiler still gives linking errors. 😐

[jsulm]

@Pbaodoge Well, then you have a build of taglib for running an application, not for building one. On Windows you need the *.lib file for each lib you want to use in your app while building the app. When executing it you only need *.dll.

[jsulm]

@Pbaodoge Also, libtag.dll.a is the static version of the lib. You can use it like:

LIBS += "G:/Qt/metadata2/taglib-1.12/build/taglib/libtag.dll.a"

[Pbaodoge]

libtag.dll.a doesn't work either :)

[jsulm]

@Pbaodoge Please post the build log

[Pbaodoge]

Here it is:

Running steps for project metadata2...
Configuration unchanged, skipping qmake step.
Starting: "C:\Qt\Tools\mingw1120_64\bin\mingw32-make.exe" -j2
C:\Qt\6.3.0\mingw_64\bin\qmake.exe -o Makefile ..\metadata2\metadata2.pro -spec win32-g++ "CONFIG+=debug" "CONFIG+=qml_debug"
C:/Qt/Tools/mingw1120_64/bin/mingw32-make -f Makefile.Debug
mingw32-make[1]: Entering directory 'G:/Qt/build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug'
g++ -Wl,-subsystem,windows -mthreads -o debug\metadata2.exe debug/main.o debug/mainwindow.o debug/moc_mainwindow.o G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll.a C:\Qt\6.3.0\mingw_64\lib\libQt6Multimedia.a C:\Qt\6.3.0\mingw_64\lib\libQt6Widgets.a C:\Qt\6.3.0\mingw_64\lib\libQt6Gui.a C:\Qt\6.3.0\mingw_64\lib\libQt6Network.a C:\Qt\6.3.0\mingw_64\lib\libQt6Core.a -lmingw32 C:\Qt\6.3.0\mingw_64\lib\libQt6EntryPoint.a -lshell32  
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: debug/main.o: in function `qMain(int, char**)':
G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:30: undefined reference to `__imp__ZN6TagLib8FileNameC1EPKc'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:30: undefined reference to `__imp__ZN6TagLib4MPEG4FileC1ENS_8FileNameEbNS_15AudioProperties9ReadStyleE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:32: undefined reference to `__imp__ZN6TagLib4MPEG4File8ID3v2TagEb'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:37: undefined reference to `__imp__ZNK6TagLib5ID3v23Tag6headerEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:37: undefined reference to `__imp__ZNK6TagLib5ID3v26Header12majorVersionEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:39: undefined reference to `__imp__ZNK6TagLib5ID3v23Tag6headerEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:39: undefined reference to `__imp__ZNK6TagLib5ID3v26Header14revisionNumberEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:41: undefined reference to `__imp__ZNK6TagLib5ID3v23Tag6headerEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:41: undefined reference to `__imp__ZNK6TagLib5ID3v26Header7tagSizeEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:45: undefined reference to `__imp__ZNK6TagLib5ID3v23Tag9frameListEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:47: undefined reference to `__imp__ZNK6TagLib5ID3v25Frame7frameIDEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:47: undefined reference to `__imp__ZlsRSoRKN6TagLib10ByteVectorE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:47: undefined reference to `__imp__ZN6TagLib10ByteVectorD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:50: undefined reference to `__imp__ZNK6TagLib5ID3v213CommentsFrame11descriptionEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:50: undefined reference to `__imp__ZNK6TagLib6String7isEmptyEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:50: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:51: undefined reference to `__imp__ZNK6TagLib5ID3v213CommentsFrame11descriptionEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:51: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:51: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:53: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:53: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:46: undefined reference to `__imp__ZNK6TagLib5ID3v23Tag9frameListEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:61: undefined reference to `__imp__ZN6TagLib4MPEG4File8ID3v1TagEb'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:64: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:64: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:65: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:65: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:66: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:66: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:68: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:68: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:70: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:70: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:75: undefined reference to `__imp__ZN6TagLib4MPEG4File6APETagEb'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:80: undefined reference to `__imp__ZNK6TagLib3APE3Tag11itemListMapEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:83: undefined reference to `__imp__ZNK6TagLib3APE4Item4typeEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:84: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:84: undefined reference to `__imp__ZNK6TagLib3APE4Item8toStringEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:84: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:84: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:86: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:86: undefined reference to `__imp__ZNK6TagLib3APE4Item10binaryDataEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:86: undefined reference to `__imp__ZNK6TagLib10ByteVector4sizeEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:86: undefined reference to `__imp__ZN6TagLib10ByteVectorD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:81: undefined reference to `__imp__ZNK6TagLib3APE3Tag11itemListMapEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:93: undefined reference to `__imp__ZN6TagLib4MPEG4FileD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:47: undefined reference to `__imp__ZN6TagLib10ByteVectorD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:50: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:51: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:53: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:64: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:65: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: debug/main.o:G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:66: more undefined references to `__imp__ZN6TagLib6StringD1Ev' follow
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: debug/main.o: in function `qMain(int, char**)':
G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:86: undefined reference to `__imp__ZN6TagLib10ByteVectorD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:93: undefined reference to `__imp__ZN6TagLib4MPEG4FileD1Ev'
mingw32-make[1]: Leaving directory 'G:/Qt/build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug'
collect2.exe: error: ld returned 1 exit status
mingw32-make[1]: *** [Makefile.Debug:72: debug/metadata2.exe] Error 1
mingw32-make: *** [Makefile:45: debug] Error 2
The process "C:\Qt\Tools\mingw1120_64\bin\mingw32-make.exe" exited with code 2.
Error while building/deploying project metadata2 (kit: Desktop Qt 6.3.0 MinGW 64-bit)
When executing step "Make"
Elapsed time: 00:10.

[jsulm]

@Pbaodoge Can you also post build log when doing

LIBS += "G:/Qt/metadata2/taglib-1.12/build/taglib/libtag.lib"

?

Also, was this lib built using same compiler?

[Pbaodoge]

@jsulm said in Linking error while compiling taglib in Qt 6:

@Pbaodoge Can you also post build log when doing

LIBS += "G:/Qt/metadata2/taglib-1.12/build/taglib/libtag.lib"

You mean libtag.dll? as I said earlier there's no libtag.lib

Running steps for project metadata2...
Configuration unchanged, skipping qmake step.
Starting: "C:\Qt\Tools\mingw1120_64\bin\mingw32-make.exe" -j2
C:/Qt/Tools/mingw1120_64/bin/mingw32-make -f Makefile.Debug
mingw32-make[1]: Entering directory 'G:/Qt/build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug'
g++ -Wl,-subsystem,windows -mthreads -o debug\metadata2.exe debug/main.o debug/mainwindow.o debug/moc_mainwindow.o G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll C:\Qt\6.3.0\mingw_64\lib\libQt6Multimedia.a C:\Qt\6.3.0\mingw_64\lib\libQt6Widgets.a C:\Qt\6.3.0\mingw_64\lib\libQt6Gui.a C:\Qt\6.3.0\mingw_64\lib\libQt6Network.a C:\Qt\6.3.0\mingw_64\lib\libQt6Core.a -lmingw32 C:\Qt\6.3.0\mingw_64\lib\libQt6EntryPoint.a -lshell32  
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll:cygming-crtbegin.c:(.idata+0x490): multiple definition of `__imp___ZSt4cerr'; G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll:cygming-crtbegin.c:(.idata+0x490): first defined here
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll:cygming-crtbegin.c:(.idata+0x4a0): multiple definition of `__imp___ZTVN10__cxxabiv120__si_class_type_infoE'; G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll:cygming-crtbegin.c:(.idata+0x4a0): first defined here
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll:cygming-crtbegin.c:(.idata+0x4a4): multiple definition of `__imp___ZTVSt9exception'; G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll:cygming-crtbegin.c:(.idata+0x4a4): first defined here
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll:cygming-crtbegin.c:(.idata+0x49c): multiple definition of `__imp___ZTVN10__cxxabiv117__class_type_infoE'; G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll:cygming-crtbegin.c:(.idata+0x49c): first defined here
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: i386 architecture of input file `G:\Qt\metadata2\taglib-1.12\build\taglib\libtag.dll' is incompatible with i386:x86-64 output
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: debug/main.o: in function `qMain(int, char**)':
G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:30: undefined reference to `__imp__ZN6TagLib8FileNameC1EPKc'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:30: undefined reference to `__imp__ZN6TagLib4MPEG4FileC1ENS_8FileNameEbNS_15AudioProperties9ReadStyleE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:32: undefined reference to `__imp__ZN6TagLib4MPEG4File8ID3v2TagEb'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:37: undefined reference to `__imp__ZNK6TagLib5ID3v23Tag6headerEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:37: undefined reference to `__imp__ZNK6TagLib5ID3v26Header12majorVersionEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:39: undefined reference to `__imp__ZNK6TagLib5ID3v23Tag6headerEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:39: undefined reference to `__imp__ZNK6TagLib5ID3v26Header14revisionNumberEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:41: undefined reference to `__imp__ZNK6TagLib5ID3v23Tag6headerEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:41: undefined reference to `__imp__ZNK6TagLib5ID3v26Header7tagSizeEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:45: undefined reference to `__imp__ZNK6TagLib5ID3v23Tag9frameListEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:47: undefined reference to `__imp__ZNK6TagLib5ID3v25Frame7frameIDEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:47: undefined reference to `__imp__ZlsRSoRKN6TagLib10ByteVectorE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:47: undefined reference to `__imp__ZN6TagLib10ByteVectorD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:50: undefined reference to `__imp__ZNK6TagLib5ID3v213CommentsFrame11descriptionEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:50: undefined reference to `__imp__ZNK6TagLib6String7isEmptyEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:50: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:51: undefined reference to `__imp__ZNK6TagLib5ID3v213CommentsFrame11descriptionEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:51: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:51: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:53: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:53: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:46: undefined reference to `__imp__ZNK6TagLib5ID3v23Tag9frameListEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:61: undefined reference to `__imp__ZN6TagLib4MPEG4File8ID3v1TagEb'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:64: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:64: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:65: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:65: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:66: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:66: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:68: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:68: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:70: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:70: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:75: undefined reference to `__imp__ZN6TagLib4MPEG4File6APETagEb'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:80: undefined reference to `__imp__ZNK6TagLib3APE3Tag11itemListMapEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:83: undefined reference to `__imp__ZNK6TagLib3APE4Item4typeEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:84: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:84: undefined reference to `__imp__ZNK6TagLib3APE4Item8toStringEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:84: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:84: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:86: undefined reference to `__imp__ZlsRSoRKN6TagLib6StringE'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:86: undefined reference to `__imp__ZNK6TagLib3APE4Item10binaryDataEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:86: undefined reference to `__imp__ZNK6TagLib10ByteVector4sizeEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:86: undefined reference to `__imp__ZN6TagLib10ByteVectorD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:81: undefined reference to `__imp__ZNK6TagLib3APE3Tag11itemListMapEv'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:93: undefined reference to `__imp__ZN6TagLib4MPEG4FileD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:47: undefined reference to `__imp__ZN6TagLib10ByteVectorD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:50: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:51: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:53: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:64: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:65: undefined reference to `__imp__ZN6TagLib6StringD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: debug/main.o:G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:66: more undefined references to `__imp__ZN6TagLib6StringD1Ev' follow
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: debug/main.o: in function `qMain(int, char**)':
G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:86: undefined reference to `__imp__ZN6TagLib10ByteVectorD1Ev'
C:/Qt/Tools/mingw1120_64/bin/../lib/gcc/x86_64-w64-mingw32/11.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe: G:\Qt\build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug/../metadata2/main.cpp:93: undefined reference to `__imp__ZN6TagLib4MPEG4FileD1Ev'
collect2.exe: error: ld returned 1 exit status
mingw32-make[1]: *** [Makefile.Debug:72: debug/metadata2.exe] Error 1
mingw32-make[1]: Leaving directory 'G:/Qt/build-metadata2-Desktop_Qt_6_3_0_MinGW_64_bit-Debug'
mingw32-make: *** [Makefile:45: debug] Error 2
The process "C:\Qt\Tools\mingw1120_64\bin\mingw32-make.exe" exited with code 2.
Error while building/deploying project metadata2 (kit: Desktop Qt 6.3.0 MinGW 64-bit)
When executing step "Make"
Elapsed time: 00:02.

And yes, this lib was built using the same compiler

[SGaist]

Hi,

Isn't there a "-l" missing before the library path ?

[Pbaodoge]

@SGaist uh no I was missing the -l before the lib path.

[SGaist]

I am unsure about your answer. So were you indeed missing that before the library path ?

[Pbaodoge]

@SGaist said in Linking error while compiling taglib in Qt 6:

I am unsure about your answer. So were you indeed missing that before the library path ?

Yes, I was missing that one.