On Wed, 2017-08-02 at 20:40 +0100, Sven C. Dack wrote:
> It's my understanding that we don't actually know what Benjamin wants to
> do, because nobody has asked. So I don't see how this would make me wrong.
>
> From his mail am I assuming he wants his Makefile to print "BAR" for a
> target "test-stem" as well as "subdir/test-stem", which is what he will
> get when he uses $(eval ...).
Because he is using a pattern-specific variable assignment instead of
just assigning the variable globally we can infer that he would like to
have the "FOO = BAR" assignment only in the context of targets that
match that pattern but not other targets.
So for this makefile:
test-%: FOO = BAR
test-%:
echo $(FOO)
other:
echo $(FOO)
He would like to see:
$ make test-foo
echo BAR
BAR
$ make other
echo
If we change the pattern-specific variable to use $(eval FOO = BAR) he
would see:
$ make test-foo
echo BAR
BAR
$ make other
echo BAR
BAR
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