Re: Replacing characters in a pattern rule

[John Graham-Cumming]

natch wrote:
> > That solution looks beautiful.  Unfortunately, I'm forced to use Make 
> > 3.79.1 which doesn't understand eval.  Any other suggestions?

OK.  What you could do is write the rules out to a Makefile that you 
generate during Makefile parsing and then include that Makefile.  (Yes, 
this is a hack).

DIRECTORIES := a b c group/d group/e
HTML_FILES := $(addsuffix /index.html,$(DIRECTORIES))
SPECIAL_MAKEFILE := include-me

define copy-rule
echo "$1 : $(subst /,_,$1) ; cp $1 $(subst /,_,$1)" >> $(SPECIAL_MAKEFILE)
endef

$(shell rm -f $(SPECIAL_MAKEFILE))
$(foreach d,$(HTML_FILES),$(shell $(call copy-rule,$d)))

include include-me

And if you want to get really fancy you could make a rule for include-me 
that does the $(foreach) bit.

John.
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John Graham-Cumming
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