CXX = cl -G6 -DMSWIN

LIB_HOME = .
OBJDIR	 = $(LIB_HOME)\obj
LIB_NAME = $(LIB_HOME)\libtest1.dll
OBJS     = $(OBJDIR)\test1.obj

INC = 	-I"path_to_directory_with_abstract_classes"

{$(LIB_HOME)}.cpp{$(OBJDIR)}.obj:
	$(CXX) $(INC) -c $< -Fo$@

all: $(LIB_NAME)

$(LIB_NAME):	$(OBJS) 
	$(CXX) -LD $(OBJDIR)\*.obj -o $@

clean:
	del $(OBJDIR)\*.obj