On Sat, 2022-08-27 at 15:32 -0700, Samuel Sieb wrote:
> On 8/27/22 15:14, Jonathan Ryshpan wrote:
> > I'm trying to build an application for KDE, kpeoplevcard, available
> > from
> > github. The compilation goes OK, but ld produces a large number of
> > undefined references, so it looks like I should install some
> > libraries.
> > What's the easiest way to find out which libraries to install?
>
> That's very odd that it would compile and fail to link. To have the
> headers, you need the devel package and that will require the library
> package. Did you run a configure step of some sort? That should
> detect
> any missing libraries.
>
> It can be difficult to go from a link error to the required library.
> Can you show an example?
The program is on github and can be downloaded by:
git clone https://invent.kde.org/pim/kpeoplevcard.git
The output of the build process is attached as all.
--
Sincerely Jonathan Ryshpan <jonr...@pacbell.net>
If thousands of volunteers can make an operating system
that doesn't crash, thousands of highly paid engineers
should be able to do it, too. Then why don't they?
-- Al Fasoldt
[ 11%] Automatic MOC for target KPeopleVCard
[ 11%] Built target KPeopleVCard_autogen
[ 22%] Building CXX object
src/CMakeFiles/KPeopleVCard.dir/KPeopleVCard_autogen/mocs_compilation.cpp.o
[ 33%] Building CXX object src/CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o
[ 44%] Linking CXX shared module ../bin/kpeople/datasource/KPeopleVCard.so
/usr/bin/ld:
CMakeFiles/KPeopleVCard.dir/KPeopleVCard_autogen/mocs_compilation.cpp.o:(.data.rel.ro._ZTI12KPeopleVCard[_ZTI12KPeopleVCard]+0x0):
undefined reference to `vtable for __cxxabiv1::__si_class_type_info'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`(anonymous namespace)::Q_QGS_vcardsLocation::innerFunction()':
kpeoplevcard.cpp:(.text+0x100): undefined reference to `__cxa_guard_acquire'
/usr/bin/ld: kpeoplevcard.cpp:(.text+0x14a): undefined reference to
`__cxa_guard_release'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`(anonymous namespace)::Q_QGS_vcardsWriteLocation::innerFunction()':
kpeoplevcard.cpp:(.text+0x258): undefined reference to `__cxa_guard_acquire'
/usr/bin/ld: kpeoplevcard.cpp:(.text+0x2a2): undefined reference to
`__cxa_guard_release'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`KPeopleVCard::KPeopleVCard()':
kpeoplevcard.cpp:(.text+0x857): undefined reference to `operator new(unsigned
long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`KPeopleVCard::~KPeopleVCard()':
kpeoplevcard.cpp:(.text+0xa9f): undefined reference to `operator delete(void*,
unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`KPeopleVCard::processVCard(QString const&)':
kpeoplevcard.cpp:(.text+0x1079): undefined reference to `operator new(unsigned
long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`VCardDataSource::~VCardDataSource()':
kpeoplevcard.cpp:(.text+0x12ed): undefined reference to `operator delete(void*,
unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`VCardDataSource::createAllContactsMonitor()':
kpeoplevcard.cpp:(.text+0x136d): undefined reference to `operator new(unsigned
long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`VCardDataSourceFactory::~VCardDataSourceFactory()':
kpeoplevcard.cpp:(.text+0x140b): undefined reference to `operator delete(void*,
unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`qt_plugin_instance':
kpeoplevcard.cpp:(.text+0x1549): undefined reference to `__cxa_guard_acquire'
/usr/bin/ld: kpeoplevcard.cpp:(.text+0x1593): undefined reference to
`__cxa_guard_release'
/usr/bin/ld: kpeoplevcard.cpp:(.text+0x15b6): undefined reference to `operator
new(unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`std::enable_if<QtPrivate::FunctionPointer<KPeopleVCard::KPeopleVCard()::{lambda(QString
const&)#1}>::ArgumentCount==(-1), QMetaObject::Connection>::type
QObject::connect<void (KDirWatch::*)(QString const&),
KPeopleVCard::KPeopleVCard()::{lambda(QString
const&)#1}>(QtPrivate::FunctionPointer<void (KDirWatch::*)(QString
const&)>::Object const*, void (KDirWatch::*)(QString const&), QObject const*,
KPeopleVCard::KPeopleVCard()::{lambda(QString const&)#1}, Qt::ConnectionType)':
kpeoplevcard.cpp:(.text+0x16da): undefined reference to `operator new(unsigned
long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`std::enable_if<QtPrivate::FunctionPointer<KPeopleVCard::KPeopleVCard()::{lambda(QString
const&)#2}>::ArgumentCount==(-1), QMetaObject::Connection>::type
QObject::connect<void (KDirWatch::*)(QString const&),
KPeopleVCard::KPeopleVCard()::{lambda(QString
const&)#2}>(QtPrivate::FunctionPointer<void (KDirWatch::*)(QString
const&)>::Object const*, void (KDirWatch::*)(QString const&), QObject const*,
KPeopleVCard::KPeopleVCard()::{lambda(QString const&)#2}, Qt::ConnectionType)':
kpeoplevcard.cpp:(.text+0x178f): undefined reference to `operator new(unsigned
long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`QtPrivate::QFunctorSlotObject<KPeopleVCard::KPeopleVCard()::{lambda(QString
const&)#1}, 1, QtPrivate::List<QString const&>, void>::impl(int,
QtPrivate::QSlotObjectBase*, QObject*, void**, bool*)':
kpeoplevcard.cpp:(.text+0x1935): undefined reference to `operator delete(void*,
unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`QtPrivate::QFunctorSlotObject<KPeopleVCard::KPeopleVCard()::{lambda(QString
const&)#2}, 1, QtPrivate::List<QString const&>, void>::impl(int,
QtPrivate::QSlotObjectBase*, QObject*, void**, bool*)':
kpeoplevcard.cpp:(.text+0x19bf): undefined reference to `operator delete(void*,
unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`QtSharedPointer::ExternalRefCountData::operator delete(void*)':
kpeoplevcard.cpp:(.text._ZN15QtSharedPointer20ExternalRefCountDatadlEPv[_ZN15QtSharedPointer20ExternalRefCountDatadlEPv]+0x14):
undefined reference to `operator delete(void*)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`KPeople::BasePersonsDataSourceV2::~BasePersonsDataSourceV2()':
kpeoplevcard.cpp:(.text._ZN7KPeople23BasePersonsDataSourceV2D0Ev[_ZN7KPeople23BasePersonsDataSourceV2D5Ev]+0x25):
undefined reference to `operator delete(void*, unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`QMetaObject::Connection QObject::connect<void (KDirWatch::*)(QString const&),
void (KPeopleVCard::*)(QString const&)>(QtPrivate::FunctionPointer<void
(KDirWatch::*)(QString const&)>::Object const*, void (KDirWatch::*)(QString
const&), QtPrivate::FunctionPointer<void (KPeopleVCard::*)(QString
const&)>::Object const*, void (KPeopleVCard::*)(QString const&),
Qt::ConnectionType)':
kpeoplevcard.cpp:(.text._ZN7QObject7connectIM9KDirWatchFvRK7QStringEM12KPeopleVCardFvS4_EEEN11QMetaObject10ConnectionEPKN9QtPrivate15FunctionPointerIT_E6ObjectESE_PKNSD_IT0_E6ObjectESJ_N2Qt14ConnectionTypeE[_ZN7QObject7connectIM9KDirWatchFvRK7QStringEM12KPeopleVCardFvS4_EEEN11QMetaObject10ConnectionEPKN9QtPrivate15FunctionPointerIT_E6ObjectESE_PKNSD_IT0_E6ObjectESJ_N2Qt14ConnectionTypeE]+0x44):
undefined reference to `operator new(unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`QList<QVariant>::node_destruct(QList<QVariant>::Node*,
QList<QVariant>::Node*)':
kpeoplevcard.cpp:(.text._ZN5QListI8QVariantE13node_destructEPNS1_4NodeES3_[_ZN5QListI8QVariantE13node_destructEPNS1_4NodeES3_]+0x39):
undefined reference to `operator delete(void*, unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`QList<QVariant>::node_copy(QList<QVariant>::Node*, QList<QVariant>::Node*,
QList<QVariant>::Node*)':
kpeoplevcard.cpp:(.text._ZN5QListI8QVariantE9node_copyEPNS1_4NodeES3_S3_[_ZN5QListI8QVariantE9node_copyEPNS1_4NodeES3_S3_]+0x29):
undefined reference to `operator new(unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`QList<QVariant>::node_construct(QList<QVariant>::Node*, QVariant const&)':
kpeoplevcard.cpp:(.text._ZN5QListI8QVariantE14node_constructEPNS1_4NodeERKS0_[_ZN5QListI8QVariantE14node_constructEPNS1_4NodeERKS0_]+0x1b):
undefined reference to `operator new(unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`QtPrivate::QSlotObject<void (KPeopleVCard::*)(QString const&),
QtPrivate::List<QString const&>, void>::impl(int, QtPrivate::QSlotObjectBase*,
QObject*, void**, bool*)':
kpeoplevcard.cpp:(.text._ZN9QtPrivate11QSlotObjectIM12KPeopleVCardFvRK7QStringENS_4ListIJS4_EEEvE4implEiPNS_15QSlotObjectBaseEP7QObjectPPvPb[_ZN9QtPrivate11QSlotObjectIM12KPeopleVCardFvRK7QStringENS_4ListIJS4_EEEvE4implEiPNS_15QSlotObjectBaseEP7QObjectPPvPb]+0x5b):
undefined reference to `operator delete(void*, unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`QObject* KPluginFactory::createInstance<VCardDataSource, QObject>(QWidget*,
QObject*, QList<QVariant> const&)':
kpeoplevcard.cpp:(.text._ZN14KPluginFactory14createInstanceI15VCardDataSource7QObjectEEPS2_P7QWidgetS3_RK5QListI8QVariantE[_ZN14KPluginFactory14createInstanceI15VCardDataSource7QObjectEEPS2_P7QWidgetS3_RK5QListI8QVariantE]+0x5f):
undefined reference to `operator new(unsigned long)'
/usr/bin/ld: CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o: in function
`VCardContact::~VCardContact()':
kpeoplevcard.cpp:(.text._ZN12VCardContactD0Ev[_ZN12VCardContactD5Ev]+0x25):
undefined reference to `operator delete(void*, unsigned long)'
/usr/bin/ld:
CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o:(.data.rel.ro._ZTI22VCardDataSourceFactory[_ZTI22VCardDataSourceFactory]+0x0):
undefined reference to `vtable for __cxxabiv1::__si_class_type_info'
/usr/bin/ld:
CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o:(.data.rel.ro._ZTI12VCardContact[_ZTI12VCardContact]+0x0):
undefined reference to `vtable for __cxxabiv1::__si_class_type_info'
/usr/bin/ld:
CMakeFiles/KPeopleVCard.dir/kpeoplevcard.cpp.o:(.data.rel.ro._ZTI15VCardDataSource[_ZTI15VCardDataSource]+0x0):
undefined reference to `vtable for __cxxabiv1::__si_class_type_info'
collect2: error: ld returned 1 exit status
make[2]: *** [src/CMakeFiles/KPeopleVCard.dir/build.make:113:
bin/kpeople/datasource/KPeopleVCard.so] Error 1
make[1]: *** [CMakeFiles/Makefile2:199: src/CMakeFiles/KPeopleVCard.dir/all]
Error 2
make: *** [Makefile:146: all] Error 2
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