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Re: make portability issue

From: Ralf Wildenhues
Subject: Re: make portability issue
Date: Tue, 13 Feb 2007 22:47:00 +0100
User-agent: Mutt/1.5.13 (2006-08-11)

Hello Guillaume,

* Guillaume Rousse wrote on Mon, Feb 12, 2007 at 11:29:05AM CET:
> Still on the portability issue, I have some doubts about the following
> hack, to create an output file of the same type as the input one:
> SUFFIXES = .png .small.png
> .png.small.png:
>         convert -geometry $(SMALL_WIDTH)x$(SMALL_HEIGHT) $< $@
> I didn't found any failure yet, but I'm not 100% sure it will work
> everywhere.

This isn't required by POSIX; more specifically, POSIX only defines
inference rules with suffixes that start with a period but do not
contain any other period.

On the practical side, I haven't come across a make implementation that
fails the above.


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