GDL2 compile problem on MacOSX

[Yves de Champlain]

multiply defined ...

gcc-dp-4.1       -flat_namespace -undefined warning -fgnu-runtime -o  
DBModeler.app/./DBModeler \
./shared_obj/main.o ./shared_obj/Modeler.o ./shared_obj/ 
AdaptorsPanel.o ./shared_obj/MainModelEditor.o ./shared_obj/ 
ModelerEntityEditor.o ./shared_obj/DefaultColumnProvider.o ./ 
shared_obj/KVDataSource.o ./shared_obj/ModelerAttributeEditor.o ./ 
shared_obj/EOAdditions.o ./shared_obj/ModelerTableEmbedibleEditor.o ./ 
shared_obj/SQLGenerator.o ./shared_obj/ConsistencyResults.o ./ 
shared_obj/Preferences.o ./shared_obj/ConsistencyChecker.o ./ 
Inspectors/shared_obj/subproject.o  -L../EOAccess/./shared_obj -L../ 
EOControl/./shared_obj -L../EOInterface/./shared_obj -L../EOModeler/./ 
shared_obj -L/opt/local/GNUstep/Local/Library/Libraries/ -L/opt/local/ 
GNUstep/System/Library/Libraries/ -lgnustep-gui -lgnustep-db2 - 
lgnustep-db2control -lgnustep-base -lEOInterface -lgnustep-db2modeler  
-lobjc -lm
/opt/local/bin/odld: multiple definitions of symbol  
_DefaultAttributeColumns
./shared_obj/ModelerEntityEditor.o definition of  
_DefaultAttributeColumns in section (__DATA,__data)
./shared_obj/DefaultColumnProvider.o definition of  
_DefaultAttributeColumns in section (__DATA,__data)
/opt/local/bin/odld: multiple definitions of symbol  
_DefaultEntityColumns
./shared_obj/ModelerEntityEditor.o definition of  
_DefaultEntityColumns in section (__DATA,__data)
./shared_obj/DefaultColumnProvider.o definition of  
_DefaultEntityColumns in section (__DATA,__data)
/opt/local/bin/odld: multiple definitions of symbol  
_DefaultRelationshipColumns
./shared_obj/ModelerEntityEditor.o definition of  
_DefaultRelationshipColumns in section (__DATA,__data)
./shared_obj/DefaultColumnProvider.o definition of  
_DefaultRelationshipColumns in section (__DATA,__data)
./shared_obj/ModelerAttributeEditor.o definition of  
_DefaultAttributeColumns in section (__DATA,__data)
./shared_obj/ModelerAttributeEditor.o definition of  
_DefaultEntityColumns in section (__DATA,__data)
./shared_obj/ModelerAttributeEditor.o definition of  
_DefaultRelationshipColumns in section (__DATA,__data)
/opt/local/bin/odld: warning prebinding disabled because dependent  
library: libgnustep-gui.dylib.0.11 is not prebound
collect2: ld returned 1 exit status
gnumake[2]: *** [DBModeler.app/./DBModeler] Error 1
gnumake[1]: *** [DBModeler.all.app.variables] Error 2
gnumake: *** [internal-all] Error 2

can anybody help with this ?

thanks

yves