Re: can I create dynamic variables?

[Paul Smith]

On Sat, 2007-04-07 at 11:02 +0300, mickey n wrote:
> Hi All,
> 
> I wish to create variables based on other variables which are given
> from an included file by pattern.
> something like (lets assume VAR1 and VAR2 are included from a conf
> file):
> 
> VAR1 = A
> VAR2 = B
> 
> VARS = VAR*
> 
> 
> I expect VARS to contain 'A B'.
> 
> How can I assign VARS like this in valid gnumake syntax? (read the
> manual, couldn't find it)

If you have GNU make 3.80 or better, you can use this:

  VARS = $(foreach V,$(filter-out VARS,$(filter VAR%,$(.VARIABLES))),$($(V)))

If you can avoid having the variable you're creating (VARS) match the
same pattern as the variables you're looking for (VAR%), then you can
simplify that a lot:

  ALLVARS = $(foreach V,$(filter VAR%,$(.VARIABLES)),$($(V)))

If you don't have GNU make 3.80 or better, then you can't do it at all.

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