escape hash mark

[Daniel Neuberger]

Is there any way to reliable escape the hash mark in automake?  It seems 
that using += causes multiple expansions and breaks it.

This works:
SOMEVAR = "\# some comment"

This doesn't

SOMEVAR = "\# some comment"
SOMEVAR += "other stuff"

So my current workaround is:

HASHMARK = $(shell echo "\#")
SOMEVAR = "$(HASHMARK)some comment"
SOMEVAR += "other stuff"

Thanks.

- Daniel