Is there a way to set --warn-undefined-variables in the Makefile?

[Anton Daneyko]

Dear All,
I can run make with the --warn-undefined-variables parameter, but I wonder
if I can enforce this behavior directly in the Makefile? In a way similar
to "set -u" in the bash script.

[Lane Schwartz]

I thought there was, but now that I go back and look at my old
scripts, I'm not so sure.

You can take a look at how I handled things:
https://github.com/dowobeha/joshua-pipeline

Post by Anton Daneyko
Dear All,
I can run make with the --warn-undefined-variables parameter, but I wonder
if I can enforce this behavior directly in the Makefile? In a way similar
to "set -u" in the bash script.
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[Anton Daneyko]

One needs to put MAKEFLAGS=--warn-undefined-variables in the beginning of
the script.

Post by Anton Daneyko
Dear All,
I can run make with the --warn-undefined-variables parameter, but I
wonder if I can enforce this behavior directly in the Makefile? In a way
similar to "set -u" in the bash script.