In reading the manual, I came across this:
"A source package if possible should not contain binary executable
files: they are not portable, and a security risk if they are of the
appropriate architecture. R CMD check will warn about them2 unless
they are listed (one filepath per line) in a file ?BinaryFiles? at the
top level of the package. Note that CRAN will no longer accept
submissions containing binary files even if they are listed."
From my understanding, the .exe files are a subset of binary files,
which are no longer accepted by CRAN. If this is the case for my
situation, is there any other way to include the C code, so that CRAN
will accept the package?