I had discovered two moments which determine such behavior:
1) appending to variable in "$(eval ...)" takes only first value in chain.
I.e.:
LDFLAGS defined in global context as "LDFLAGS += 1"
and in target "A" as "LDFLAGS += 2",
then actual value for "A" and all it's prerequisites will be "1 2".
Calling "$(eval LDFLAGS += 3)" in recipe of target "A"
or any prerequisite defines "LDFLAGS" as "2 3".
2) variable assignment during "$(eval ...)" in recipe sets new value
in top-most variable without setting "variable.recursive = 0".
I.e.:
LDFLAGS after "$(eval ...)" equals "2 3" and defined in global context,
but it's still recursive, that's why LDFLAGS is equal "2 3 2".
How do you think what I should change to fix bug and keep original logic?
--
SY,
Konstantin Demin
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