On Mon, Nov 29, 2004 at 03:36:52PM -0600, Eric Sandeen wrote:
> if I have something like:
>
> quiet_cmd_systune = SYSTUNE $<
> cmd_systune = $(dir $<)/gen_systune.pl \
> $< \
> $(obj)/$(*F)_systunes.c \
> $(obj)/$(*F)_systunes.h \
> $(*F)_systunes
>
> %_systunes.c %_systunes.h: %_systunes.data $(src)/gen_systune.pl FORCE
> $(call if_changed,systune)
>
> I get my nice pretty-printed output for V=0.
Always test with V=1 also!
>
> but the instructions for if_changed say that the targets must be listed
> in $(targets) or the target will always be built... can if_changed work
> together with an implicit rule?
Yes, you just use:
targets += $(wildcard %_systunes.c %_systunes.h)
Sam
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