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if(!file.exists('bindings.o') && !file.exists('../.deps/libv8/include/v8.h')){
unlink("../.deps", recursive = TRUE)
url <- if(grepl("aarch", R.version$platform)){
"https://github.com/r-windows/bundles/releases/download/v8-14.0.365.4/v8-14.0.365.4-clang-aarch64.tar.xz"
} else if(grepl("clang", Sys.getenv('R_COMPILED_BY'))){
"https://github.com/r-windows/bundles/releases/download/v8-14.0.365.4/v8-14.0.365.4-clang-x86_64.tar.xz"
} else if(getRversion() >= "4.3") {
"https://github.com/r-windows/bundles/releases/download/v8-14.0.365.4/v8-14.0.365.4-ucrt-x86_64.tar.xz"
} else if(getRversion() >= "4.2") {
"https://github.com/r-windows/bundles/releases/download/v8-11.8.172.13/v8-9.1.269.38-win-ucrt.tar.xz"
} else {
"https://github.com/r-windows/bundles/releases/download/v8-11.8.172.13/v8-9.1.269.38-win-msvcrt.tar.xz"
}
download.file(url, basename(url), quiet = TRUE)
dir.create("../.deps", showWarnings = FALSE)
untar(basename(url), exdir = "../.deps", tar = 'internal')
unlink(basename(url))
setwd("../.deps")
file.rename(list.files(), 'libv8')
}
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