readelf: Error: Not an ELF file - it has the wrong magic bytes at the start

[achubaty]

non-stopping error appears during installation:

==> R CMD INSTALL --preclean --no-multiarch --with-keep.source libcbmr

* installing to library ‘/home/achubaty/R/x86_64-pc-linux-gnu-library/4.2’
* installing *source* package ‘libcbmr’ ...
** using staged installation
** R
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
** checking absolute paths in shared objects and dynamic libraries
readelf: Error: Not an ELF file - it has the wrong magic bytes at the start
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (libcbmr)

this error seen with executable efiles that are non-binary (like python scripts)