Qt-interest Archive, March 2002
compile error ( inheritance problem ? )
Message 1 in thread
Hi,
I'm using Qt3.0.2 on Linux ( Suse 7.2 )
With designer ( .ui ) , I'm making a QMainWindow derived class : MainFrame
I also have a class exoTKADMainFrame inheriting from MainFrame
When I try to compile, I have the following errors :
.obj/exoTKADMainFrame.o: In function
`exoTKADMainFrame::exoTKADMainFrame(void)':
.obj/exoTKADMainFrame.o(.text+0x1f): undefined reference to
`exoTKADMainFrame::QPaintDevice virtual table'
.obj/exoTKADMainFrame.o(.text+0x26): undefined reference to `exoTKADMainFrame
virtual table'
.obj/exoTKADMainFrame.o: In function
`exoTKADMainFrame::~exoTKADMainFrame(void)':
.obj/exoTKADMainFrame.o(.text+0x4f): undefined reference to
`exoTKADMainFrame::QPaintDevice virtual table'
.obj/exoTKADMainFrame.o(.text+0x56): undefined reference to `exoTKADMainFrame
virtual table'
What does that mean ?
What should I do to solve these errors ?
TIA,
Stephane
http://www.exotk.org
PS : sorry, I'm quite a newbie in programming with Linux and Qt
Message 2 in thread
Make sure you are also linking the .moc.o files, this is likely your problem.
If that isn't the case, ensure that you are linking Qt 3 and not Qt 2.x.
On Monday 18 March 2002 2:18 pm, Stephane Routelous wrote:
> Hi,
>
> I'm using Qt3.0.2 on Linux ( Suse 7.2 )
>
> With designer ( .ui ) , I'm making a QMainWindow derived class : MainFrame
> I also have a class exoTKADMainFrame inheriting from MainFrame
>
> When I try to compile, I have the following errors :
>
> .obj/exoTKADMainFrame.o: In function
> `exoTKADMainFrame::exoTKADMainFrame(void)':
> .obj/exoTKADMainFrame.o(.text+0x1f): undefined reference to
> `exoTKADMainFrame::QPaintDevice virtual table'
> .obj/exoTKADMainFrame.o(.text+0x26): undefined reference to
> `exoTKADMainFrame virtual table'
> .obj/exoTKADMainFrame.o: In function
> `exoTKADMainFrame::~exoTKADMainFrame(void)':
> .obj/exoTKADMainFrame.o(.text+0x4f): undefined reference to
> `exoTKADMainFrame::QPaintDevice virtual table'
> .obj/exoTKADMainFrame.o(.text+0x56): undefined reference to
> `exoTKADMainFrame virtual table'
>
>
> What does that mean ?
> What should I do to solve these errors ?
>
> TIA,
>
> Stephane
> http://www.exotk.org
>
> PS : sorry, I'm quite a newbie in programming with Linux and Qt
Message 3 in thread
Hi,
I don't understand : I don't have moc files for this class.
I'm using qmake.
When I run the generated Makefile, I have
Makefile:176: warning: overriding commands for target `.moc'
Makefile:173: warning: ignoring old commands for target `.moc'
Should not qmake generate the moc classes automatically ?
I attach the .pro and the Makefile, if it can help
TIA,
Stephane
http://www.exotk.org
On March 18, 2002 16:23, Christopher Thompson wrote:
> Make sure you are also linking the .moc.o files, this is likely your
> problem. If that isn't the case, ensure that you are linking Qt 3 and not
> Qt 2.x.
>
> On Monday 18 March 2002 2:18 pm, Stephane Routelous wrote:
> > Hi,
> >
> > I'm using Qt3.0.2 on Linux ( Suse 7.2 )
> >
> > With designer ( .ui ) , I'm making a QMainWindow derived class :
> > MainFrame I also have a class exoTKADMainFrame inheriting from MainFrame
> >
> > When I try to compile, I have the following errors :
> >
> > .obj/exoTKADMainFrame.o: In function
> > `exoTKADMainFrame::exoTKADMainFrame(void)':
> > .obj/exoTKADMainFrame.o(.text+0x1f): undefined reference to
> > `exoTKADMainFrame::QPaintDevice virtual table'
> > .obj/exoTKADMainFrame.o(.text+0x26): undefined reference to
> > `exoTKADMainFrame virtual table'
> > .obj/exoTKADMainFrame.o: In function
> > `exoTKADMainFrame::~exoTKADMainFrame(void)':
> > .obj/exoTKADMainFrame.o(.text+0x4f): undefined reference to
> > `exoTKADMainFrame::QPaintDevice virtual table'
> > .obj/exoTKADMainFrame.o(.text+0x56): undefined reference to
> > `exoTKADMainFrame virtual table'
> >
> >
> > What does that mean ?
> > What should I do to solve these errors ?
> >
> > TIA,
> >
> > Stephane
> > http://www.exotk.org
> >
> > PS : sorry, I'm quite a newbie in programming with Linux and Qt
#############################################################################
# Makefile for building: exoTKAD
# Generated by qmake (1.02a) on: Mon Mar 18 16:42:24 2002
# Project: exoTKAD.pro
# Template: app
# Command: $(QMAKE) exoTKAD.pro
#############################################################################
####### Compiler, tools and options
CC = gcc
CXX = g++
LEX = flex
YACC = yacc
CFLAGS = -pipe -Wall -W -O2 -D_REENTRANT -DLIN -DQT_NO_DEBUG -DQT_NO_CHECK -DQT_THREAD_SUPPORT
CXXFLAGS = -pipe -Wall -W -O2 -D_REENTRANT -DLIN -DQT_NO_DEBUG -DQT_NO_CHECK -DQT_THREAD_SUPPORT
LEXFLAGS =
YACCFLAGS= -d
INCPATH = -I${CASROOT}/inc -I${EXOTKROOT}/inc -I$(QTDIR)/include -I.ui/ -I/home/sroutelous/exoTKAD/Qt/exoTKAD -I.moc/ -I$(QTDIR)/mkspecs/linux-g++
LINK = g++
LFLAGS =
LIBS = $(SUBLIBS) -Wl,-rpath,$(QTDIR)/lib -L$(QTDIR)/lib -L/usr/X11R6/lib -lqt-mt -lpthread -L$(CASROOT)/Linux/lib -lTKernel -lexoTK -L$(EXOTKROOT)/lin/lib -lTKMath -lTKService -lTKG2d -lTKBRep -lTKG3d -lTKGeomBase -lTKV3d -lTKBool -lTKTopAlgo -lTKGeomAlgo -lTKFillet -lTKV2d -lTKPrim -lTKHLR -lXext -lX11 -lm
AR = ar cqs
RANLIB =
MOC = $(QTDIR)/bin/moc
UIC = $(QTDIR)/bin/uic
QMAKE = qmake
TAR = tar -cf
GZIP = gzip -9f
COPY = cp -f
COPY_FILE= $(COPY) -p
COPY_DIR = $(COPY) -pR
DEL_FILE = rm -f
DEL_DIR = rmdir
MOVE = mv
####### Output directory
OBJECTS_DIR = .obj/
####### Files
HEADERS = Document.hxx \
exoTKADMainFrame.hxx \
exoTKADChildFrame.hxx
SOURCES = Document.cxx \
exoTKADMainFrame.cxx \
exoTKADChildFrame.cxx
OBJECTS = .obj/Document.o \
.obj/exoTKADMainFrame.o \
.obj/exoTKADChildFrame.o \
.obj/childframe.o \
.obj/mainframe.o \
.obj/qmake_image_collection.o
FORMS = childframe.ui \
mainframe.ui
UICDECLS = .ui/childframe.h \
.ui/mainframe.h
UICIMPLS = .ui/childframe.cpp \
.ui/mainframe.cpp
SRCMOC = .moc/moc_childframe.cpp \
.moc/moc_mainframe.cpp
OBJMOC = .obj/moc_childframe.o \
.obj/moc_mainframe.o
DIST =
QMAKE_TARGET = exoTKAD
DESTDIR =
TARGET = exoTKAD
first: all
####### Implicit rules
.SUFFIXES: .c .cpp .cc .cxx .C
.cpp.o:
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o $@ $<
.cc.o:
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o $@ $<
.cxx.o:
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o $@ $<
.C.o:
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o $@ $<
.c.o:
$(CC) -c $(CFLAGS) $(INCPATH) -o $@ $<
####### Build rules
all: Makefile $(TARGET)
$(TARGET): $(UICDECLS) $(OBJECTS) $(OBJMOC)
$(LINK) $(LFLAGS) -o $(TARGET) $(OBJECTS) $(OBJMOC) $(LIBS)
mocables: $(SRCMOC)
$(MOC):
( cd $(QTDIR)/src/moc ; $(MAKE) )
Makefile: exoTKAD.pro
$(QMAKE) exoTKAD.pro
qmake:
@$(QMAKE) exoTKAD.pro
dist:
@mkdir -p .obj/exoTKAD && $(COPY_FILE) --parents $(SOURCES) $(HEADERS) $(FORMS) $(DIST) .obj/exoTKAD/ && ( cd `dirname .obj/exoTKAD` && $(TAR) exoTKAD.tar exoTKAD && $(GZIP) exoTKAD.tar ) && mv `dirname .obj/exoTKAD`/exoTKAD.tar.gz . && rm -rf .obj/exoTKAD
mocclean:
-rm -f $(OBJMOC)
-rm -f $(SRCMOC)
uiclean:
-rm -f $(UICIMPLS) $(UICDECLS)
clean: mocclean uiclean
-rm -f $(OBJECTS)
-rm -f .ui/qmake_image_collection.cpp
-rm -f *~ core *.core
####### Sub-libraries
distclean: clean
-rm -f $(TARGET) $(TARGET)
FORCE:
####### Compile
.obj/Document.o: Document.cxx Document.hxx \
exoTKADChildFrame.hxx \
exoTKADMainFrame.hxx \
.ui/childframe.h \
.ui/mainframe.h
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o .obj/Document.o Document.cxx
.obj/exoTKADMainFrame.o: exoTKADMainFrame.cxx exoTKADMainFrame.hxx \
.ui/mainframe.h
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o .obj/exoTKADMainFrame.o exoTKADMainFrame.cxx
.obj/exoTKADChildFrame.o: exoTKADChildFrame.cxx exoTKADChildFrame.hxx \
.ui/childframe.h
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o .obj/exoTKADChildFrame.o exoTKADChildFrame.cxx
.ui/childframe.h: childframe.ui childframe.ui.h
$(UIC) childframe.ui -o .ui/childframe.h
.ui/childframe.cpp: .ui/childframe.h childframe.ui childframe.ui.h
$(UIC) childframe.ui -i childframe.h -o .ui/childframe.cpp
.ui/mainframe.h: mainframe.ui mainframe.ui.h
$(UIC) mainframe.ui -o .ui/mainframe.h
.ui/mainframe.cpp: .ui/mainframe.h mainframe.ui mainframe.ui.h
$(UIC) mainframe.ui -i mainframe.h -o .ui/mainframe.cpp
.obj/childframe.o: .ui/childframe.cpp .ui/childframe.h
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o .obj/childframe.o .ui/childframe.cpp
.obj/mainframe.o: .ui/mainframe.cpp .ui/mainframe.h
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o .obj/mainframe.o .ui/mainframe.cpp
.obj/moc_childframe.o: .moc/moc_childframe.cpp .ui/childframe.h
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o .obj/moc_childframe.o .moc/moc_childframe.cpp
.obj/moc_mainframe.o: .moc/moc_mainframe.cpp .ui/mainframe.h
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o .obj/moc_mainframe.o .moc/moc_mainframe.cpp
.moc: $(MOC) Document.hxx
$(MOC) Document.hxx -o .moc
.moc: $(MOC) exoTKADMainFrame.hxx
$(MOC) exoTKADMainFrame.hxx -o .moc
.moc: $(MOC) exoTKADChildFrame.hxx
$(MOC) exoTKADChildFrame.hxx -o .moc
.moc/moc_childframe.cpp: $(MOC) .ui/childframe.h
$(MOC) .ui/childframe.h -o .moc/moc_childframe.cpp
.moc/moc_mainframe.cpp: $(MOC) .ui/mainframe.h
$(MOC) .ui/mainframe.h -o .moc/moc_mainframe.cpp
.obj/qmake_image_collection.o: .ui/qmake_image_collection.cpp
$(CXX) -c $(CXXFLAGS) $(INCPATH) -o .obj/qmake_image_collection.o .ui/qmake_image_collection.cpp
.ui/qmake_image_collection.cpp: images/filenew \
images/fileopen \
images/filesave \
images/print \
images/undo \
images/redo \
images/editcut \
images/editcopy \
images/editpaste \
images/searchfind
$(UIC) -embed exoTKAD images/filenew images/fileopen images/filesave images/print images/undo images/redo images/editcut images/editcopy images/editpaste images/searchfind -o .ui/qmake_image_collection.cpp
####### Install
install: all
uninstall:
SOURCES += Document.cxx exoTKADMainFrame.cxx exoTKADChildFrame.cxx
HEADERS += Document.hxx exoTKADMainFrame.hxx exoTKADChildFrame.hxx
unix {
UI_DIR = .ui
MOC_DIR = .moc
OBJECTS_DIR = .obj
}
FORMS = childframe.ui mainframe.ui
IMAGES = images/filenew images/fileopen images/filesave images/print images/undo images/redo images/editcut images/editcopy images/editpaste images/searchfind
TEMPLATE =app
CONFIG += qt warn_on release thread
unix:DEFINES += LIN
INCLUDEPATH += ${CASROOT}/inc ${EXOTKROOT}/inc
LIBS += -L$(CASROOT)/Linux/lib -lTKernel -lexoTK -L$(EXOTKROOT)/lin/lib -lTKMath -lTKService -lTKG2d -lTKBRep -lTKG3d \
-lTKGeomBase -lTKV3d -lTKBool -lTKTopAlgo -lTKGeomAlgo -lTKFillet -lTKV2d -lTKPrim -lTKHLR
DBFILE = exoTKAD.db
LANGUAGE = C++
Message 4 in thread
Hi,
perhaps I found something :
if I rename my header files from <FILE>.hxx to <FILE>.h, it's seems to work.
Any idea why the header files SHOULD be .h ?
I will send an e-mail to trolltech.
Stephane
http://www.exotk.org
On March 18, 2002 16:45, Stephane Routelous wrote:
> Hi,
>
> I don't understand : I don't have moc files for this class.
> I'm using qmake.
> When I run the generated Makefile, I have
> Makefile:176: warning: overriding commands for target `.moc'
> Makefile:173: warning: ignoring old commands for target `.moc'
>
> Should not qmake generate the moc classes automatically ?
>
> I attach the .pro and the Makefile, if it can help
>
> TIA,
>
> Stephane
> http://www.exotk.org
>
> On March 18, 2002 16:23, Christopher Thompson wrote:
> > Make sure you are also linking the .moc.o files, this is likely your
> > problem. If that isn't the case, ensure that you are linking Qt 3 and not
> > Qt 2.x.
> >
> > On Monday 18 March 2002 2:18 pm, Stephane Routelous wrote:
> > > Hi,
> > >
> > > I'm using Qt3.0.2 on Linux ( Suse 7.2 )
> > >
> > > With designer ( .ui ) , I'm making a QMainWindow derived class :
> > > MainFrame I also have a class exoTKADMainFrame inheriting from
> > > MainFrame
> > >
> > > When I try to compile, I have the following errors :
> > >
> > > .obj/exoTKADMainFrame.o: In function
> > > `exoTKADMainFrame::exoTKADMainFrame(void)':
> > > .obj/exoTKADMainFrame.o(.text+0x1f): undefined reference to
> > > `exoTKADMainFrame::QPaintDevice virtual table'
> > > .obj/exoTKADMainFrame.o(.text+0x26): undefined reference to
> > > `exoTKADMainFrame virtual table'
> > > .obj/exoTKADMainFrame.o: In function
> > > `exoTKADMainFrame::~exoTKADMainFrame(void)':
> > > .obj/exoTKADMainFrame.o(.text+0x4f): undefined reference to
> > > `exoTKADMainFrame::QPaintDevice virtual table'
> > > .obj/exoTKADMainFrame.o(.text+0x56): undefined reference to
> > > `exoTKADMainFrame virtual table'
> > >
> > >
> > > What does that mean ?
> > > What should I do to solve these errors ?
> > >
> > > TIA,
> > >
> > > Stephane
> > > http://www.exotk.org
> > >
> > > PS : sorry, I'm quite a newbie in programming with Linux and Qt
Message 5 in thread
You have most likely forgotten to link in the moc file.
/Mauritz
Underscore AB
Stephane Routelous wrote:
>Hi,
>
>I'm using Qt3.0.2 on Linux ( Suse 7.2 )
>
>With designer ( .ui ) , I'm making a QMainWindow derived class : MainFrame
>I also have a class exoTKADMainFrame inheriting from MainFrame
>
>When I try to compile, I have the following errors :
>
>.obj/exoTKADMainFrame.o: In function
>`exoTKADMainFrame::exoTKADMainFrame(void)':
>.obj/exoTKADMainFrame.o(.text+0x1f): undefined reference to
>`exoTKADMainFrame::QPaintDevice virtual table'
>.obj/exoTKADMainFrame.o(.text+0x26): undefined reference to `exoTKADMainFrame
>virtual table'
>.obj/exoTKADMainFrame.o: In function
>`exoTKADMainFrame::~exoTKADMainFrame(void)':
>.obj/exoTKADMainFrame.o(.text+0x4f): undefined reference to
>`exoTKADMainFrame::QPaintDevice virtual table'
>.obj/exoTKADMainFrame.o(.text+0x56): undefined reference to `exoTKADMainFrame
>virtual table'
>
>
>What does that mean ?
>What should I do to solve these errors ?
>
>TIA,
>
>Stephane
>http://www.exotk.org
>
>PS : sorry, I'm quite a newbie in programming with Linux and Qt
>
>--
>List archive and information: http://qt-interest.trolltech.com
>
