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fix lookup path for tbb stub library on windows #250

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kevinushey merged 1 commit into from
Jul 23, 2026
+6 −1
Merged

fix lookup path for tbb stub library on windows #250

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7 changes: 6 additions & 1 deletion R/zzz.R
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,12 @@ loadTbbLibrary <- function(name) {
# DLL search path.
if (is_windows()) {

path <- file.path(tbbRoot(), paste0(name, ".dll"))
# NOTE: resolve against the package's own library directory, where
# install.libs.R places the stub; tbbRoot() would prefer TBB_LIB,
# which on Windows points at Rtools and holds only static libraries
arch <- .Platform$r_arch
parts <- c("lib", if (nzchar(arch)) arch, paste0(name, ".dll"))
path <- system.file(paste(parts, collapse = "/"), package = "RcppParallel")
if (!file.exists(path))
return(NULL)

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