making a library, simpel question

[Lloyd Dupont]

I finally had my GNUstep makefile to make a library running. it looks like that:

#=========================================

include $(GNUSTEP_MAKEFILES)/common.make

 

LIBRARY_NAME = OneLib-ObjC

 

ADDITIONAL_OBJCFLAGS += -Wno-import -g -ggdb
ADDITIONAL_LDFLAGS += -lobjc -lgnustep-base
ADDITIONAL_LIB_DIRS += -Llibrary
ADDITIONAL_OBJC_LIBS += -lxml2 -larchive1 -lgnustep-gui

 

OneLib-ObjC_OBJC_FILES = deux.m one.m

 

# Include in the rules for making libraries
include $(GNUSTEP_MAKEFILES)/library.make
#=========================================

 

what kind of puzzles me is why have I to set the -lobjc -lgnustep-base  flag, while

1. I am compiling an objectiveC/GNUstep library with the GNUstep makefile system

2. I don't need to specify them when I compile a tool

?