* installing *source* package ‘SurvivalClusteringTree’ ... ** this is package ‘SurvivalClusteringTree’ version ‘1.1.3’ ** using staged installation ** libs using C++ compiler: ‘g++-15 (Debian 15.2.0-13) 15.2.0’ g++-15 -std=gnu++20 -I"/home/hornik/tmp/R/include" -DNDEBUG -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/RcppArmadillo/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -c RcppExports.cpp -o RcppExports.o g++-15 -std=gnu++20 -I"/home/hornik/tmp/R/include" -DNDEBUG -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/RcppArmadillo/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O2 -Wall -pedantic -mtune=native -c find_best_split_cox_bone.cpp -o find_best_split_cox_bone.o find_best_split_cox_bone.cpp: In function ‘Rcpp::List find_best_split_cox_bone(arma::vec, arma::uvec, arma::mat, arma::mat, arma::vec, double, int)’: find_best_split_cox_bone.cpp:160:20: warning: comparison of integer expressions of different signedness: ‘int’ and ‘const arma::uword’ {aka ‘const unsigned int’} [-Wsign-compare] 160 | for(kk=0;kk