A function to print instead of $(warning ) or $(error )

[Pete Johnson]

In trying to add some help messages to my Makefiles I have come across 
the following problem. I would like a function just like $(warning ), 
except I don't want it to prefix the message with <makefile>:<line>:

For example, if I have a Makefile like this...

define foo
a multi
line
string
endef

$(warning $(foo))

nothing:


and I run make, I get the following...

% make
Makefile:6: a multi
line
string
make: Nothing to be done for `nothing'.

I would like to just see...

% make
a multi
line
string
make: Nothing to be done for `nothing'.

I have tried using something like $(shell echo $(foo) 1>&2) but this 
will not work with multi-line strings (although it works fine for one 
line strings).

Does anyone know how to do this? I am surprised that this is not a 
built-in function.

Thanks,

-Pete