[R-pkg-devel] Possible bug report/false positive

[Igor L]

To whom it may concern,
I'm using devtools::check() and trying to upload my package to CRAN (The
code is available in github
<https://github.com/igorlaltuf/dail/blob/main/R/requests.R>), but I'm not
able to understand why the function is showing 1 NOTE:


-- R CMD check results
------------------------------------------------------------------------------------
dail 0.0.0.9000 ----
Duration: 17.9s
> checking R code for possible problems ... NOTE
  Found an obsolete/platform-specific call in the following function:
    'requests'
  Found the platform-specific device:
    'X11'
  dev.new() is the preferred way to open a new device, in the unlikely
  event one is needed.
  requests: no visible binding for global variable 'protocolo'
  Undefined global functions or variables:
    protocolo
0 errors √ | 0 warnings √ | 1 note x


After uploading it to CRAN, I noticed that: (1) this only happens on
debian; and (2) as pointed out in this answer
<https://stackoverflow.com/questions/70585796/unable-to-understand-1-note-in-devtoolscheck-caused-by-a-platform-specific-d>,
the code might be understanding X11 as a function from package::grDevices
<https://github.com/wch/r-source/blob/b1434842427cc01b7e8301495fe0f75ef519ac01/src/library/tools/R/QC.R#L6384-L6391>
.
Does anyone know the reason for this and how to solve it?

Best regards,
*Igor Laltuf Marques*
https://igorlaltuf.github.io/

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