Re: Automatically generate rules from a list variable

[Boris Godin]

Try this:

LIST = file1.cpp file2.cpp file3.cpp

define CHOSEN_CPP
$(1)_o: $(1)
    @gcc -c $$< -o $$@
    # or whatever you do (see "define" to understand expansion)
endef

$(foreach FILE,$(LIST), \
  $(eval $(call CHOSEN_CPP,$(FILE)))


I think this should "make" it, although didn't test it.
Goodluck.

Andrei Deftu wrote:

Hi!

I have the following scenario

LIST := file1.cpp file2.cpp file3.cpp

and I want to generate these rules

file1.cpp_o: file1.cpp
       # bla bla
file2.cpp_o: file1.cpp
       # bla bla
file2.cpp_o: file1.cpp
       # bla bla

but I want to write only a single rule for this, like:
$(LIST:%=%_o): $(@:%_o=%)
       # bla bla

The problem is that this is not valid and I don't know how to write a
rule for a list that expands to a rule for every element of the list
and each of this rule must have as a target and as a dependency the
current element of the list. Thanks.


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Boris Godin
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