Per incoming email

With current R-devel, we are seeing new segfaults and corresponding
UBSAN problems for packages

VAJointSurv fixest kdevine maxnodf o2geosocial openxlsx reservr vapour

with fixest and openxlsx showing

#0 0x7fd6892ef904 in Rcpp::traits::r_vector_cache<14, Rcpp::PreserveStorage>::ref(long) /data/gannet/ripley/R/test-dev/Rcpp/include/Rcpp/vector/traits.h:46
#1 0x7fd6892ef904 in Rcpp::Vector<14, Rcpp::PreserveStorage>::operator[](long) /data/gannet/ripley/R/test-dev/Rcpp/include/Rcpp/vector/Vector.h:340

and the others similarly. Can you please have a look?

[....] tells me that there are also new UBSAN issues for

BART FLOPART FLSSS LOPAR aum lme4 magi nanotime ondisc pedmod
rsparse supc xrnet

most of which point to Rcpp (lme4 seems from Eigen).

with short followup

Apparently this is from

r86629 | luke | 2024-05-27 00:29:48 +0200 (Mon, 27 May 2024) | 3 lines
Hide some more functions in inlined.c.
Also define STRICT_TYPECHECK when compiling inlined.c.