Wouter van Ooijen wrote:

> I have a (GNU) Makefile that does some checks. If a check fails, I want
> to report that to the user. Is there a way to do that? The best I can
> find so far is something ugly like
> 
> ifndef CHIP_VALID
>    include no_valid_CHIP_defined_in_your_Makefile
> endif

Maybe the command line option "--warn-undefined-variables" already does
what you want.

Gerhard

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