> How about:
> 
>     echo "no  valid CHIP defined in your Makefile"
> 
> That's how I'd do it in UNIX anyway.

That's ~ 1/3 of the solution: the message to the user. Next 1/3: 'echo'
is not a makefile command, so I must make a dummy target and specify
"echo" as command to make that target? How do I make sure that that
target is the first one to be build? And then the last 1/3: how do I
stop the makefile execution?

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
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docent Hogeschool van Utrecht: www.voti.nl/hvu
 

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