Re: Assigning $@ to target-specific variable

[John Graham-Cumming]

Ryan Berdeen wrote:
> I've just started using GNU make (3.80), and I'm confused why the  
> following doesn't work:
>
> $(TARGETS): target := $@
>
> The target variable remains empty.

That's happening because you used := which means that the variable 
'target' is getting fully evaluated when it is defined.  At that moment 
$@ is not defined and hence 'target' is empty.

If you changed the line to:

    $(TARGETS) : target = $@

then it would work.

Here's a simple example:

    all: i_am = $@
    all: ; @echo I am $(i_am)

which will output:

    I am all

John.
--
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