dependency <- function(os){
UseMethod("dependency")
}
dependency.default <- function(os){
stop("no method for ", class(os)[1L])
}
dependency.Windowsx86 <- function(os){
invisible(os)
}
dependency.Windowsx64 <- function(os){
invisible(os)
}
dependency.Darwinx64 <- function(os){
invisible(os)
}
dependency.Linuxx64 <- function(os){
sys::exec_wait("apt-get", args = "update")
sys::exec_wait("apt-get", args = c("install","-y","bzip2"))
}
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