Re: Filtering ${.VARIABLES} ?

[Philip Guenther]

On 6/22/07, Frazer Worley <address@hidden> wrote:
> I want a target which just dumps the variables defined in my Makefile. So I
> wrote this - using ${.VARIABLES} and filtering using origin.
>
>
> VERBOSITY=                BRIEF
>  PROJECT_TAG=              btc
>
>  define dump_variable
>  endef
>
>  dumpvars:
>    $(foreach i,${.VARIABLES},\
>      $(if $(filter file,$(origin $i)),\
>        $(info $i),\
>      )\
>    )
>
> Problem is though - that it reports "dump_variable" also ... which is a user
> defined macro rather than a simple variable.

Could you clarify your terminology?  The info pages use "simple
variable" to refer to variables set with ":=", but that doesn't appear
to be how you're using it.  Similarly, "macro" is just a synonym for
"variable", so I don't understand your distinction between "user
defined macro" and "simple variable".


>  This becomes an issue when I extend dumpvars to report the value of the
> variables its reporting, I get Make errors when dumpvars issues
> $(info $i = $($i)) on some of my macros.

That's probably because the variables contain further variable or
function expansions.  Try $(info $i = $(value $i))


Philip Guenther