GNU make puzzle

[Chad Loder]

Hello. I would like to indent build messages according to
the make level at which they occur. I am considering something
along the following lines:


#################### /generic.mk ##########################

INDENT_STRING:=<# of spaces equal to $(MAKELEVEL)>
echo_msg:=echo "$(INDENT_STRING)"


#################### sub.mk ###############################
include /generic.mk

all :
        $(echo_msg) Building sub
        $(MAKE) -f subsub.mk


#################### subsub.mk ############################
include /generic.mk

all :
        $(echo_msg) Building subsub


and so on...where each level of make corresponds to another
level of indentation in the echo_msg macro.

Any ideas?

Thanks,
        chad