* installing *source* package ‘NPtestIndept’ ... ** using staged installation ** libs using C++ compiler: ‘Debian clang version 19.1.3 (2)’ clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppArmadillo/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O3 -Wall -pedantic -DR_NO_REMAP -c NPtest_indept.cpp -o NPtest_indept.o NPtest_indept.cpp:4:10: fatal error: 'omp.h' file not found 4 | #include | ^~~~~~~ 1 error generated. make: *** [/home/hornik/tmp/R-d-clang-19/etc/Makeconf:202: NPtest_indept.o] Error 1 ERROR: compilation failed for package ‘NPtestIndept’ * removing ‘/srv/hornik/tmp/CRAN_pretest/NPtestIndept.Rcheck/NPtestIndept’