Re: Pulling parts from a filename.

[Mike Shal]

On 6/9/10, Todd Showalter <address@hidden> wrote:
> On Wed, Jun 9, 2010 at 4:46 AM, Oleksandr Gavenko <address@hidden> wrote:
>
>  > FOO_FNT = foo_14.fnt foo_13.fnt foo_10.fnt
>  > BAR_FNT = bar_12.fnt bar_9.fnt
>  >
>  > FNT = $(FOO_FNT) $(BAR_FNT)
>  >
>  > all:  $(FNT)
>  >
>  > $(FOO_FNT): foo_%.fnt: foo.otf
>  >        fontgen -f $* $< $@
>  >
>  > $(BAR_FNT): bar_%.fnt: bar.otf
>  >        fontgen -f $* $< $@
>
>
>      Thanks, but this doesn't quite solve the problem; I've already
>  got something akin to that in my current makefile.  What I'm trying to
>  determine is if there's a way I can (sanely) unify the $(FOO_FNT) and
>  $(BAR_FNT) rules, so I don't have to add another one for $(BAZ_FNT)
>  and $(QUUX_FNT) and so on somewhere down the road.  What I want is a
>  rule for which the target is $(FNT).

I don't know if this helps or not, but you can separate the command
from the dependency listing:

FOO_FNT = foo.14.fnt foo.13.fnt foo.10.fnt
BAR_FNT = bar.12.fnt bar.9.fnt

FNT = $(FOO_FNT) $(BAR_FNT)

all:  $(FNT)

$(FNT):
        @echo fontgen -p $(subst .,,$(suffix $(basename $@))) $< $@

# generate and include these?
$(FOO_FNT): foo.otf
$(BAR_FNT): bar.otf

You might then be able to generate the foo.14.fnt: foo.otf relation
and include it as a separate makefile (like how you would generate and
include a .d file for C programs).

-Mike