Nothing
# Prepare your package for installation here.
# Use 'define()' to define configuration variables.
# Use 'configure_file()' to substitute configuration values.
library(tools)
for (std in c('CXX17', 'CXX14')) {
cat('Checking if R knows a', std, 'compiler... ')
out <- suppressWarnings(Rcmd(paste('config', std)))
if (out == 0) break
}
if (out != 0) stop("Couldn't find a C++ >= 14 compiler")
f <- file(file.path('src', 'Makevars'), 'wb')
writeLines(c(paste('CXX_STD =', std)), f)
close(f)
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