Re: Dropping "call" operator?

[Paul Smith]

On Mon, 2024-03-25 at 18:47 -0700, Kaz Kylheku wrote:
> > I have considered doing this, but only AFTER it becomes an error
> > (not just a warning) to create a make variable with whitespace in
> > the name.
> 
> Could you elaborate? How recent of a gmake do we need for this
> diagnostic?

The current Git version (next release) will warn about variables
created with spaces in the name, regardless of how they get there:

  $ cat Makefile
  define a b c
  $(info hello)
  endef

  $ ./make
  Makefile:1: warning: invalid variable name 'a b c'
  make: *** No targets.  Stop.

This can be turned into an error via:

  $ ./make --warn=error -f /tmp/x1.mk
  Makefile:1: *** invalid variable name 'a b c'.  Stop.


There's nothing wrong with creating a variable name containing a comma
and I don't anticipate making this illegal.