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Date: Tue, 03 Feb 2004 06:04:52 +0100
From: Oliver Eikemeier <eikemeier@fillmore-labs.com>
Organization: Fillmore Labs GmbH - http://www.fillmore-labs.com/
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To: Sergey Matveychuk <sem@ciam.ru>
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cc: ports@freebsd.org
Subject: Re: Makefile: .if inside .for
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Sergey Matveychuk wrote:

> man make says:
>      For loops are expanded before tests, so a fragment such as:
> 
>            .for TMACHINE in ${SHARED_ARCHS}
>            .if ${TMACHINE} = ${MACHINE}
>                 ...
>            .endif
>            .endfor
> 
>      won't work, and should be rewritten the other way around.
> 
> But how can I rewrite it if I need to aggregate file names in 
> PLIST_FILES with a some condition in a loop?

Try

.for TMACHINE in ${SHARED_ARCHS}
.if ${MACHINE} == ${TMACHINE}
     ...
.endif
.endfor

or use a shell loop.