Emmanuel,
I ran this by Kurt Hornik (CC'ed) who is a Debian user too and one who updates frequently. He has hit the issue as well as says that it seems to stem from rstan and that updating "everything" seems to fix it, just as I suggested to you as "qualified guess". We have no idea yet whose ABI changed. With that I think we can close this as a bug against the r-base package. It appears to be a bystander here. Best, Dirk -- http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
