Kurt,
Could you do me a favour and run on that clang18-using machine in question
the following one-liner (provided your session has access to a .libPaths()
including Rcpp) and, in the case of success, the resulting function?
> Rcpp::cppFunction("int ompconfigtest() { return omp_get_num_threads(); }",
includes="#include <omp.h>", plugin="openmp")
> ompconfigtest()
[1] 1
>
On a "normal" development machine such as mine here it works.
Presumably it will fail at your end because -fopenmp will not be / cannot be
substituted in from the openmp plugin defined by Rcpp:
## built-in OpenMP plugin
.plugins[["openmp"]] <- function() {
list(env = list(PKG_CXXFLAGS="-fopenmp",
PKG_LIBS="-fopenmp"))
}
but it would be nice to know if that does indeed fail.
Thanks, Dirk
--
dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
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