If you can't make first-class functions that are the equal of $(filter) or
$(subst) or whatever, or indeed replace them, then it seems like a bit of a
fudge for the sake of 4 characters.

I think one could end up having huge discussions about this to a pretty
limited benefit and miss spending the time on some of your other proposals
which get around really significant problems.

Regards,

Tim

On Mon, 10 Jun 2019 at 04:46, David A. Wheeler <dwhee...@dwheeler.com>
wrote:

> On Mon, 10 Jun 2019 11:56:04 +0900, Masahiro Yamada <masahi...@kernel.org>
> wrote:
> > It is a design.
>
> Sure, but we can add to it.
>
> > In summary, there is slight difference between
> > a variable and a user-defined function.
> > Omitting 'call' makes obscure the difference between them.
>
> I don't think it obscures the difference at all.
> The presence of parameters makes the difference quite obvious.
>
> Let's use the examples from:
> https://www.gnu.org/software/make/manual/html_node/Call-Function.html
>
> # Current:
> foo = $(call reverse,a,b)
> # Proposed alternative:
> foo = $(reverse a,b)
>
> # Current:
> LS := $(call pathsearch,ls)
> # Proposed alternative:
> LS := $(pathsearch ls)
>
>
> # Current:
> o = $(call map,origin,o map MAKE)
> # Proposed alternative:
> o = $(map origin,o map MAKE)
>
>
> There is *one* case I can agree would be obscure.
> That would be a space with NO parameters. E.g., $(hello ).
> That's more likely to be an error than a function call.
> So perhaps the short form should require something other than a ")"
> right after the name's whitespace; if you want to call a function
> with no parameters (why?) you'd be required to use $(call NAME).
> I'd be happy with that limitation on the syntactic sugar.
>
> --- David A. Wheeler
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> Bug-make@gnu.org
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