RE: How to define a variable with {} expansion

[Cook, Malcolm]

>Thanks!  That's exactly what I was looking for. 

Glad it worked.  I use shell assignment exactly for this convenient purpose 
myself.

> (Perhaps you should CC the list with this.)

Doh!  Of course! Done below:

>On Thu, Jan 28, 2021 at 12:50 AM Cook, Malcolm <mailto:MEC@stowers.org> wrote:
>This is called “brace expansion” in bash manual.
> 
>If you are using a newer version of Gnu Make, and Make’s .SHELL is set to 
>/bin/bash (or another shell which supports brace expansion), you can use 
>Make’s new-ish “shell assignment operator”, !=, like this
> 
>                x!= echo abc/def/{ghi,kln,opq}.a
> 
>(note use commas to separate alternatives to expand, not spaces)
> 
>here’s a one-liner demo:
> 
>make --eval 'x!=echo abc/def/{ghi,kln,opq}.a' --eval '$(info $x)'
> 
> 
>>From: Help-make <help-make-bounces+mec=mailto:stowers.org@gnu.org> On Behalf 
>>Of Blake McBride
>>Sent: Wednesday, January 27, 2021 12:11
>>To: mailto:help-make@gnu.org
>>Subject: How to define a variable with {} expansion
>> 
>>Greetings,
>>
>>Please forgive the basic question.
>>
>>If I want a variable set to: abc/def/ghi.a abc/def/klm.a abc/def/opq.a
>>
>>On other make systems, I would do: abc/def/{ghi kln opq}.a
>>
>>How can I do this in GNU Make?
>>
>>Thank you!
>>
>>Blake McBride