Re: make portability issue

[Ralf Wildenhues]

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.

Cheers,
Ralf