* installing *source* package ‘MicrobiomeStat’ ...
** this is package ‘MicrobiomeStat’ version ‘1.3’
** using staged installation
** libs
using C++ compiler: ‘Debian clang version 21.1.8 (1+b1)’
clang++-21 -std=gnu++17 -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  -I/opt/homebrew/include -fpic  -g -O3 -Wall -pedantic   -c ADMM.cpp -o ADMM.o
clang++-21 -std=gnu++17 -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  -I/opt/homebrew/include -fpic  -g -O3 -Wall -pedantic   -c RcppExports.cpp -o RcppExports.o
clang++-21 -std=gnu++17 -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  -I/opt/homebrew/include -fpic  -g -O3 -Wall -pedantic   -c bmdd_nlopt.cpp -o bmdd_nlopt.o
bmdd_nlopt.cpp:2:10: fatal error: 'nlopt.hpp' file not found
    2 | #include <nlopt.hpp>
      |          ^~~~~~~~~~~
1 error generated.
make: *** [/home/hornik/tmp/R/etc/Makeconf:201: bmdd_nlopt.o] Error 1
ERROR: compilation failed for package ‘MicrobiomeStat’
* removing ‘/srv/hornik/tmp/CRAN_pretest/MicrobiomeStat.Rcheck/MicrobiomeStat’