Re: variable with newlines

[Ken Smith]

On 10/22/07, Venkatraman Krishnan <address@hidden> wrote:
>
[snip]
> override define EXCLUDE_DIRS
> dir_a
> dir_b
> endef
>
> all:
>     @/bin/echo $(EXCLUDE_DIRS)
>
> When I try to make, I am guessing, the echo fails because of the multiline
> variable. How do I fix this?

When it comes to moving special characters between make and the shell,
things get ticklish as you've discovered.  How about something like
this:

override define EXCLUDE_DIRS
dir_a
dir_b
endef

empty :=#

define newline
$(empty)

endef

escaped-EXCLUDE_DIRS := \
   $(subst $(newline),\n,$(EXCLUDE_DIRS))

all: ; @echo -e "$(escaped-EXCLUDE_DIRS)"

# EOF

   Ken Smith