linking error in Gorm 0.11

[Yves de Champlain]

Making all in 2Controls...
Making all for palette 2Controls...
/usr/bin/ld -bundle /usr/lib/bundle1.o -L/opt/local/lib/gcc40 -lobjc- 
gnu       -flat_namespace -undefined warning \
  -o ./2Controls.palette/./2Controls \
  ./shared_obj/main.o ./shared_obj/inspectors.o ./shared_obj/ 
GormPopUpButtonEditor.o ./shared_obj/GormButtonEditor.o \
   -L../../GormLib/./shared_obj -L../../GormObjCHeaderParser/./ 
shared_obj -L../../GormPrefs/./shared_obj -L../../GormCore/./ 
shared_obj -L/opt/local/GNUstep/System/Library/Libraries/ -lgnustep- 
base -lgnustep-gui -lGorm -lGormCore -lGormObjCHeaderParser

/usr/bin/ld: multiple definitions of symbol  
__objc_category_name_NSTextField_IBObjectAdditions
./shared_obj/inspectors.o definition of  
__objc_category_name_NSTextField_IBObjectAdditions in section  
(__TEXT,__const)
../../GormCore/./shared_obj/libGormCore.dylib(GormControlEditor.o)  
definition of __objc_category_name_NSTextField_IBObjectAdditions

If I remove -lGormCore flag, I get this undefined symbol :

___objc_class_name_GormControlEditor


Is there a "best solution" (TM) to this ?

thanks

yves