why :: in ports makefile ?

[Michael Scheidell]

O

>
>      :     A target is considered out-of-date if its modification time
>        is less than those of any of its sources. Sources for a
>            target accumulate over dependency lines when this operator
>            is used. The target is removed if make is interrupted.
>
>      ::    If no sources are specified, the target is always
>            re-created. Otherwise, a target is considered out-of-date
>            if any of its sources has been modified more recently than
>            the target. Sources for a target do not accumulate over
>            dependency lines when this operator is used.
>            The target will not be removed if make is interrupted.
>
>
ok, but in the context of a slave port, I did get this answer (from 
portlint).
putting in :: did make portlint happy.

"/usr/home/scheidell/ports/ports/japanese/p5-Mail-SpamAssassin/../../mail/p5-Mail-SpamAssassin/Makefile", 
line 237: warning: duplicate script for target "post-install" ignored
make: fatal errors encountered -- cannot continue

>
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-- 
Michael Scheidell, CTO
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