makefile

[Aslaville]

I am running into some linking errors when I try to compile a C++ program using a Makefile. I have checked out the documentation but it seems I am missing something and maybe someone can easily spot it out.Here is the Makefile

target = main
CPPFLAGS += -Wall -Wextra -g
linker=ld
libs+=lsmfl-window -lsmfl-graphics
LDFLAGS+=$(libs)
$(target):main.o       
            $(CXX) $(LDGLAGS) $^ -o $@ 
main.o: main.cc
           $(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $< -o $@
.PHONY:clean
           $(RM) -f *.o $(target) 

[vart]

Where are your CXX, CXXFLAGS and RM variables defined?

[Aslaville]

Where are your CXX, CXXFLAGS and RM variables defined?

Yes they are defined by default.
This works :

target = main
CPPFLAGS += -Wall -Wextra -g
libs=lsmfl-window -lsmfl-graphics 
LDFLAGS+=$(libs)
$(target):main   
         $(CXX) $(LDGLAGS) $^ -o $@ 
main.o  : main.cc  
         $(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $< -o $@    
.PHONY:clean
clean:
         $(RM) -f *.o $(target) 

This doesn't :

target = main
linker=ld
CPPFLAGS += -Wall -Wextra -g
libs=lsmfl-window -lsmfl-graphics
 LDFLAGS+=$(libs)
$(target):main.o
        $(linker) $(LDGLAGS) $^ -o $@ 
main.o: main.cc
       $(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $< -o $@
.PHONY:clean
     clean:    $(RM) -f *.o $(target) 

So I got with the first one.I guess ld doesn.t link to libC++ by default