clear command in makefile..

[silversurfer]

Hello world,
I was just wondering why the clear-line in my Makefile does not work:

main:main.o $(ADDOBJS)
         clear
         @g++ -o main $(LDFLAGS) $+



As far as I understood it, it should be possible to add multiple
shell-commands.. Nevertheless, this does compile the files, but the
'clear' before does not work..

Anyone knows why?

PS I would like to use this because I like having a clean screen with
the actual errors on it.. for me, it is easier... ;)