common/autoconf/spec.gmk.in

*** 34,43 ****
--- 34,44 ----
  # often semantically important! Sometimes we need to subst
  # spaces and commas, therefore we need the following macros.
  X:=
  SPACE:=$(X) $(X)
  COMMA:=,
+ DOLLAR:=$$
  HASH:=\#
  LEFT_PAREN:=(
  RIGHT_PAREN:=)
  SQUOTE:='
  #'