Follow-up Comment #5, bug #30606 (project make):
If by "already expanded ... when the template is being defined" you mean
after the define T ... endef, then you're not correct. define, by itself,
uses deferred expansion (just like "T = $(foo)") and so right after the define
the value of T has NOT been expanded.
You can see this yourself using the $(info ...) function; very handy for
debugging expansion issues:
define T
b := $(subst aa,,$(1))
yn := $(if $(strip $(b)),y,n)
vs := $(vs) $(1):$(yn)
endef
$(info $(value T))
will show you the value of the T variable without expanding it first... this
is the text string that make is keeping for the variable T.
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