Follow-up and 'case (sort of) closed': Tomas and I dug around some more and it is due to me setting CC in ~/.R/Makevars (to
VER=-14 CCACHE=ccache CC=$(CCACHE) gcc$(VER) which drops the compilation standard flag (needed here for C23) and attached to CC by configure. I think that is actually buggy. It should attach it to CFLAGS, no? Dirk -- dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel