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Add rpath for libtbb in test_stan_functions.R on Linux #661

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Add rpath for libtbb in test_stan_functions.R on Linux #661

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64a7418
Add rpath for libtbb in test_stan_functions.R on Linux
jgabry Sep 29, 2026
de234f0
Note when the libtbb rpath workaround can be removed
jgabry Sep 29, 2026
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8 changes: 8 additions & 0 deletions tests/testthat/test_stan_functions.R
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Expand Up @@ -60,6 +60,14 @@ functions <- c(unlist(lapply(file.path(MODELS_HOME, "functions",
model_code <- paste(c("functions {", functions[grep("CODOLS", functions, invert = TRUE)], "}"), collapse = "\n")
stanc_ret <- stanc(model_code = model_code, model_name = "Stan Functions",
allow_undefined = TRUE)
# rstan's plugin links to RcppParallel's libtbb without an rpath, so on musl
# (e.g., Alpine) the compiled module can't find libtbb.so at load time (#660).
# This can be removed once we require an rstan release that includes the fix
# (stan-dev/rstan#1196).
if (Sys.info()[["sysname"]] == "Linux") {
Sys.setenv(PKG_LIBS = paste(Sys.getenv("PKG_LIBS"),
paste0("-Wl,-rpath,", RcppParallel::tbbLibraryPath())))
}
expose_stan_functions(stanc_ret, rebuild = TRUE, verbose = TRUE)
# Rcpp::registerPlugin("rstan", rstan:::rstanplugin)
# Rcpp::sourceCpp(file.path(INCLUDE_DIR, "tests.cpp"), rebuild = TRUE, verbose = TRUE)
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