Re: Deferred expansion and computed rules and rant about make bug

[Mike Shal]

On 8/4/05, Dale King <address@hidden> wrote:
> So I am looking for another workaround to the issue. I thought perhaps
> target-specific variables might do it, but haven't gotten it to work.

First: is the second "standard include file" supposed to be the same
as the first? It looks to me like the output you want is:

123
789

Second, when you tried target-specific variables, did you use the :=
instead of = ? This seems to work fine for me:

# The main make file
targets :=

all: do-targets

# This comes from an included file for a
foo := a
target := abc
flags := 123

# This comes from a standard include file
$(target): flags:=$(flags)
$(target):
        @echo "$@ has flags: $(flags)"
targets += $(target)

# This comes from an included file for b
foo := b
target := xyz
flags := 789

# This comes from a standard include file
$(target): flags:=$(flags)
targets += $(target)
$(target):
        @echo "$@ has flags: $(flags)"

# this is back to the main include file
do-targets: $(targets)

### EOF ###

The only changes are to your standard include file. I get the output
of '123' and '789' using make 3.79.1 and make 3.80. Note that if you
want to use more variables than just $(flags) in your command script,
you need a line to set each one.

Hope this helps,
-Mike