* installing *source* package ‘Signac’ ... ** this is package ‘Signac’ version ‘1.17.1’ ** using staged installation ** libs using C++ compiler: ‘g++-15 (Debian 15.2.0-16) 15.2.0’ g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++20 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c RcppExports.cpp -o RcppExports.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++20 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c filter.cpp -o filter.o g++-15 -fsanitize=address,undefined,bounds-strict -fno-omit-frame-pointer -std=gnu++20 -I"/home/hornik/tmp/R-d-gcc-xtra/include" -DNDEBUG -I'/home/hornik/tmp/CRAN_special_gcc-san/Library/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-deprecated-declarations -Wno-stringop-truncation -c group.cpp -o group.o group.cpp: In function ‘SEXPREC* groupCommand(std::string, Rcpp::Nullable >, std::size_t, bool)’: group.cpp:40:23: warning: comparison of integer expressions of different signedness: ‘size_t’ {aka ‘long unsigned int’} and ‘R_xlen_t’ {aka ‘long int’} [-Wsign-compare] 40 | for (size_t i=0; i