Nothing
renv_sdkroot_init <- function() {
if (!renv_platform_macos())
return()
enabled <- Sys.getenv("RENV_SDKROOT_ENABLED", unset = "TRUE")
if (!truthy(enabled, default = TRUE))
return()
sdkroot <- Sys.getenv("SDKROOT", unset = NA)
if (!is.na(sdkroot))
return()
sdk <- "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk"
if (!file.exists(sdk))
return()
makeconf <- file.path(R.home("etc"), "Makeconf")
if (!file.exists(makeconf))
return()
contents <- readLines(makeconf)
cxx <- grep("^CXX\\s*=", contents, value = TRUE, perl = TRUE)
if (length(cxx) == 0L)
return()
if (!grepl("(?:/usr/local|/opt/homebrew)/opt/llvm", cxx))
return()
Sys.setenv(SDKROOT = sdk)
}
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