[R-pkg-devel] Misusing CFLAGS?

[Pepijn de Vries]

Hi all,

A CRAN check report after a manual inspection confuses me a bit. Hopefully someone can help me interpret. I received the following feedback based on M1mac checks:

_"He really should not be recommending Brew for macOS ... Since it does not log the configure output, issues such as misusing CFLAGS are suppressed (a usual 'anticonf' failing)."_

I use a modified 'anticonf' (by Jeroen Ooms) configure script. When a specific header file (blosc.h) is not found, an error is produced and the submitted version echos the suggestion to install the library with Brew. I know this is not the preferred method for linking to binaries on MacOS. I have already adjusted it to suggest the preferred method for setting this up (using https://mac.R-project.org/bin/install.R). So this should take care of the first part of the feedback.

I'm confused about the second part of the feedback. Is it related to the first part? Or is it a completely separate issue? If it is a completely separate issue, how am I misusing CFLAGS?

Latest version of my configure script is available here: <https://github.com/pepijn-devries/blosc/blob/d43b95fa3ba5c01efa11ffcf14ddfa3fca63988e/configure>

Any assistance is much appreciated!

Kind regards,

Pepijn