Follow-up Comment #6, bug#65359 (group make):
Hi, Martin,
Yes, you are right. My previous understanding was wrong. Exported variables in
makefile can be seen by the recipes, as stated in make manual,
"To pass down, or export, a variable, make adds the variable and its value to
the environment for running each line of the recipe. The sub-make, in turn,
uses the environment to initialize its table of variable values. See Variables
from the Environment."
[comment #4 comment #4:]
> As demonstrated by eg:
> martind@stormy:~/tmp/make-65359$ cat Makefile
> export BADGER = wombat
> default:; echo BADGER = $$BADGER
> martind@stormy:~/tmp/make-65359$
>
> Variables are communicated to subprocesses, be they Make, the shell or
otherwise, via the environment. There is no other way.
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