[SOLVED] make: use target in prerequisites

Meson · 04-26-2012, 02:32 AM

I want to do something like:

Code:

WRAPPERS   :=  script1 script2

$(WRAPPERS): %.sh.in
	sed 's/.../.../g' $^ > $@

Where % is supposed to match the entire target. I'm sure there's a way to do this. How?

pan64 · 04-26-2012, 02:49 AM

either

Code:

%: %.sh.in
   @-rm -rf $@
   sed 's/.../.../g' $^ > $@

or

Code:

script1: script1.sh.in
script2: script2.sh.in

$(WRAPPERS):
   @-rm -rf $@
   sed 's/.../.../g' $@.sh.in > $@

but you mixed

Meson · 04-26-2012, 08:22 AM

This is what I was looking for:

Code:

WRAPPERS   :=  script1 script2

.SECONDEXPANSION:
$(WRAPPERS): $$@.sh.in
	sed 's/.../.../g' $^ > $@

Is there an even more concise way to do it without the secondary expansion?

pan64 · 04-27-2012, 12:50 AM

I gave you two other solutions. Have you tested them? Is there any problem with them?

Meson · 04-27-2012, 05:15 AM

Yes, they require redundant information.