Undefined references for SWT

Sun Feb 11 17:29:00 GMT 2007

Hye man that is cool. Thanks for your help though. I will try what you
suggested. BTW, what is the recommended amount of ram I should have
installed before I try to compile swt? I tried an hour ago to compile
swt again, and after an hour I had to kill it.
On 2/11/07, Marco Trudel <mtrudel@gmx.ch> wrote:
> Harpal Grover wrote:
> > Okay, I stated in my first post I am using GCJ for MingW GCC/GCJ 4.3
> > (gcj-eclipse-merge-branch) on Windows XP, AMD 2.1 GHZ 512 MB
> >
> > What I did not state I guess is I am using gcjbuilder, an eclipse
> > plugin to automate the build process :p It creates a make file for
> > you. So I have included the make file:
> >
> >
> > # Generated by Eclipse GCJ Builder
> > # http://gcjbuilder.sf.net
> >
> > #global targets
> > ALL: main
> > all: main
> >
> > #gcj variable
> > GCJ=gcj $(OPTLEVEL) $(DEBUGLEVEL) $(COMPILER_OPTIONS)
> >
> > #binary output folder
> > BINOUT= release
> >
> > #compiler options
> > COMPILER_OPTIONS=
> >
> > #linker options
> > LINKER_OPTIONS=
> >
> > #object list
> > OBJ=App.o
> >
> > #custom objects
> > CUSTOM_OBJ=
> >
> > #jar objects
> > CPOBJ=$(BINOUT)/./gface_0.9.1.jar.o $(BINOUT)/./swt.jar.o
> >
> > #jar so
> > CPSO=
> >
> > #project classpath
> > CP="--classpath=C:/projects/java/TSCN/Desktop/lib/h2.jar;C:/projects/java/TSCN/Desktop/lib/nebula_grid_ALPHA.jar;C:/projects/java/TSCN/Desktop/lib/ktable_2.1.3.jar;gface_0.9.1.jar;C:/thisiscool-gcc/swt/win32/3218/swt.jar;./;"
> >
> >
> > #main class (or so output)
> > MAINCLASS=--main=App -fjni
> >
> > #binary name (exe or so)
> > BIN=$(BINOUT)/scnlm.exe
> >
> > #library path list
> > LIBRARYPATH=-L$(BINOUT)
> >
> > #libraries (so) list
> > LIBRARIES=
> >
> > #resource objects list
> > RESOB=
> >
> > #compiler optimization level
> > OPTLEVEL= -O1
> >
> > #compiler debug level
> > DEBUGLEVEL= -g0
> >
> >
> > #object targets
> > %.o: %.java
> > $(GCJ) $(CP) -c $? -o $@
> >
> > ##################
> > #dummy targets (depend on config)
> >
> > #classpath objects target
> > $(BINOUT)/./gface_0.9.1.jar.o :gface_0.9.1.jar
> > $(GCJ) -c $(CP) gface_0.9.1.jar -o$(BINOUT)/gface_0.9.1.jar.o
> > $(BINOUT)/./swt.jar.o :C:/thisiscool-gcc/swt/win32/3218/swt.jar
> > $(GCJ) -c $(CP) C:/thisiscool-gcc/swt/win32/3218/swt.jar
> > -o$(BINOUT)/swt.jar.o
> >
> >
> > #classpath so target
> >
> >
> > #resource objects target
> >
> >
> >
> > #################
> >
> >
> > #main target
> >
> > main: setup $(CPOBJ) $(RESOB) $(OBJ) $(CPSO)
> > $(GCJ) $(LINKER_OPTIONS) $(MAINCLASS) $(CPOBJ) $(CUSTOM_OBJ) $(RESOB)
> > $(OBJ) -o$(BIN) $(LIBRARYPATH) $(LIBRARIES) $(CPSO)
> >
> > #setup output folders
> > setup:
> > mkdir -p $(BINOUT)/resource
> >
> > #clean target
> > clean:
> > rm -f `find . -name "*.o"`
> > rm -r $(BINOUT)
> >
> > So, the way this is executed is by the following line in MSYS :
> >
> > $ make
> > mkdir -p release/resource
>> Ok...
>> > gcj -O1 -g0 -c
> > --classpath=C:/projects/java/TSCN/Desktop/lib/h2.jar;C:/projects/java/TSCN/Desktop/lib/nebula_grid_ALPHA.jar;C:/projects/java/TSCN/Desktop/lib/ktable_2.1.3.jar;gface_0.9.1.jar;C:/thisiscool-gcc/swt/win32/3218/swt.jar;./;"
> > C:/thisiscool-gcc/swt/win32/3218/swt.jar -orelease/swt.jar.o
> > --main=App -fjni release/./gface_0.9.1.jar.o release/./swt.jar.o
> > App.o -orelease/scnlm.exe -Lrelease
>> This is one command? I assume these are multiple commands but don't see
> them clearly... Did you set them up yourself manually or does the
> eclipse gcj builder help?
> Can you try to compile your app manually? And report what errors happen
> where? Something like:
>> gcj -c -fjni swt.jar -o swt.jar.o
> gcj -s --main=App App.java swt.jar.o -Iswt.jar -o scnlm.exe
>> I really can't help you with these informations... Maybe someone else can...
>>> Marco
>> >
> > Is this more helpful? :)
> >
> >
> > On 2/11/07, Marco Trudel <mtrudel@gmx.ch> wrote:
> >> Harpal Grover wrote:
> >> > I think I figured out what may be the swt,
> >>
> >> I don't understand that....
> >>
> >>
> >> > I guess it's because the
> >> > the swt.jar wasn't the first jar being compiled in the command, so the
> >> > other jar's that relied on the swt library were failing.
> >>
> >> I don't understand tha
> >
> >> >> I only see -fjni here for the main compilation.
> >> >>
> >> >>
> >> >> > #binary name (exe or so)
> >> >> > BIN=$(BINOUT)/scnlm.exe
> >> >> >
> >> >> > #library path list
> >> >> > LIBRARYPATH=-L$(BINOUT)
> >> >> >
> >> >> > #libraries (so) list
> >> >> > LIBRARIES=
> >> >> >
> >> >> > #resource objects list
> >> >> > RESOB=
> >> >> >
> >> >> > #compiler optimization level
> >> >> > OPTLEVEL= -O3
> >> >> >
> >> >> > #compiler debug level
> >> >> > DEBUGLEVEL= -g0
> >> >> >
> >> >> >
> >> >> > #object targets
> >> >> > %.o: %.java
> >> >> > $(GCJ) $(CP) -c $? -o $@
> >> >>
> >> >> Here -fjni is missing if this compiles swt to an object. But I was too
> >> >> lazy to take a close look at this huge (in comparison to some little
> >> >> short manual commands which would have been a good alternative)
> >> >> makefile. So I might be wrong...
> >> >>
> >> >>
> >> >> Marco
> >> >>
> >> >> > ##################
> >> >> > #dummy targets (depend on config)
> >> >> >
> >> >> > #classpath objects target
> >> >> > $(BINOUT)/./nebula_grid_ALPHA.jar.o
> >> >> > :C:/projects/java/TSCN/Desktop/lib/nebula_grid_ALPHA.jar
> >> >> > $(GCJ) -c $(CP)
> >> >> > C:/projects/java/TSCN/Desktop/lib/nebula_grid_ALPHA.jar
> >> >> > -o$(BINOUT)/nebula_grid_ALPHA.jar.o
> >> >> > $(BINOUT)/./gface_0.9.1.jar.o :gface_0.9.1.jar
> >> >> > $(GCJ) -c $(CP) gface_0.9.1.jar -o$(BINOUT)/gface_0.9.1.jar.o
> >> >> > $(BINOUT)/./swt.jar.o :C:/thisiscool-gcc/swt/win32/3218/swt.jar
> >> >> > $(GCJ) -c $(CP) C:/thisiscool-gcc/swt/win32/3218/swt.jar
> >> >> > -o$(BINOUT)/swt.jar.o
> >> >> >
> >> >> >
> >> >> > #classpath so target
> >> >> >
> >> >> >
> >> >> > #resource objects target
> >> >> >
> >> >> >
> >> >> >
> >> >> > #################
> >> >> >
> >> >> >
> >> >> > #main target
> >> >> >
> >> >> > main: setup $(CPOBJ) $(RESOB) $(OBJ) $(CPSO)
> >> >> > $(GCJ) $(LINKER_OPTIONS) $(MAINCLASS) $(CPOBJ) $(CUSTOM_OBJ)
> >> >> $(RESOB)
> >> >> > $(OBJ) -o$(BIN) $(LIBRARYPATH) $(LIBRARIES) $(CPSO)
> >> >> >
> >> >> > #setup output folders
> >> >> > setup:
> >> >> > mkdir -p $(BINOUT)/resource
> >> >> >
> >> >> > #clean target
> >> >> > clean:
> >> >> > rm -f `find . -name "*.o"`
> >> >> > rm -r $(BINOUT)
> >> >> >
> >> >> > On 2/11/07, Andrew Haley <aph@redhat.com> wrote:
> >> >> >> Harpal Grover writes:
> >> >> >> > Hi,
> >> >> >> >
> >> >> >> > I am using GCJ for MingW GCC/GCJ 4.3
> >> (gcj-eclipse-merge-branch).
> >> >> >> >
> >> >> >> > I am getting the following errors when I attempt to compile not
> >> >> only
> >> >> >> > my java code, but referenced jars as well:
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> org/vafada/swtcalendar/SWTCalendar.o:SWTCalendar.java:(.data+0xc28):
> >> >> >> > undefined reference to
> >> >> >> > `org::eclipse::swt::widgets::Control::isActive()'
> >> >> >> >
> >> >> >> >
> >> >> org/vafada/swtcalendar/SWTCalendar.o:SWTCalendar.java:(.data+0xc2c):
> >> >> >> > undefined reference to
> >> >> >> > `org::eclipse::swt::widgets::Control::isEnabled()'
> >> >> >> >
> >> >> >> >
> >> >> org/vafada/swtcalendar/SWTCalendar.o:SWTCalendar.java:(.data+0xc30):
> >> >> >> > undefined reference to
> >> >> >> > `org::eclipse::swt::widgets::Control::isFocusControl()'
> >> >> >> >
> >> >> >> >
> >> >> org/vafada/swtcalendar/SWTCalendar.o:SWTCalendar.java:(.data+0xc34):
> >> >> >> > undefined reference to
> >> >> >> >
> >> >> >>
> >> >>
> >> `org::eclipse::swt::widgets::Control::isFocusAncestor(org::eclipse::swt::widgets::Control*)'
> >>
> >> >>
> >> >> >>
> >> >> >> >
> >> >> >> >
> >> >> org/vafada/swtcalendar/SWTCalendar.o:SWTCalendar.java:(.data+0xc38):
> >> >> >> > undefined reference to
> >> >> >> > `org::eclipse::swt::widgets::Control::isReparentable()'
> >> >> >> >
> >> >> >> >
> >> >> org/vafada/swtcalendar/SWTCalendar.o:SWTCalendar.java:(.data+0xc3c):
> >> >> >> > undefined reference to
> >> >> >> > `org::eclipse::swt::widgets::Control::isShowing()'
> >> >> >> > I have included the swt.jar that MingW provides in the
> >> classpath. I
> >> >> >> > have also used the -fjni flag. I must be missing something here.
> >> >> Can
> >> >> >> > anyone give me any pointers?
> >> >> >>
> >> >> >> You haven't give us enough information. In which jar is
> >> >> >> org.eclipse.swt.windgets.Control? Did you compile it? What
> >> compile
> >> >> >> args did you use?
> >> >> >>
> >> >> >> Andrew.
> >> >> >>
> >> >> >
> >> >> >
> >> >>
> >> >>
> >> >
> >> >
> >>
> >>
> >
> >
>>
-- 
Harpal Grover
President
Harpal Grover Consulting Inc