[Rcpp-devel] Passing pointers to objects between libs results in weird UBSAN warning

[Kevin Ushey]

FWIW, there's an associated bug report here:

    https://github.com/google/sanitizers/issues/911

that indicates that ubsan emits false positives when attempting to diagnose
functions opened through dlopen(), which IIUC is the standard way that R
loads symbols from compiled libraries in R packages.
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