* installing *source* package ‘kohonen’ ...
** this is package ‘kohonen’ version ‘3.0.13’
** using staged installation
** libs
using C++ compiler: ‘Debian clang version 21.1.8 (1+b1)’
clang++-21 -std=gnu++20 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c RcppExports.cpp -o RcppExports.o
clang++-21 -std=gnu++20 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c batch-supersom.cpp -o batch-supersom.o
clang++-21 -std=gnu++20 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c distance-functions.cpp -o distance-functions.o
In file included from distance-functions.cpp:7:
In file included from ./distance-functions.h:5:
In file included from /home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include/Rcpp.h:27:
In file included from /home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include/RcppCommon.h:29:
/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include/Rcpp/r/check_r_headers.h:27:13: warning: R.h has been included before any Rcpp headers. This can lead to hard-to-debug errors, and is not necessary. See https://github.com/RcppCore/Rcpp/issues/1410 [-W#pragma-messages]
   27 |     #pragma message "R.h has been included before any Rcpp headers. This can lead to hard-to-debug errors, and is not necessary. See https://github.com/RcppCore/Rcpp/issues/1410"
      |             ^
1 warning generated.
clang++-21 -std=gnu++20 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c map.cpp -o map.o
clang++-21 -std=gnu++20 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c neighbourhood-functions.cpp -o neighbourhood-functions.o
clang++-21 -std=gnu++20 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c pbatch-supersom.cpp -o pbatch-supersom.o
clang++-21 -std=gnu++20 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c supersom.cpp -o supersom.o
clang++-21 -std=gnu++20 -shared -L/home/hornik/tmp/R-d-clang-21/lib -Wl,-O1 -o kohonen.so RcppExports.o batch-supersom.o distance-functions.o map.o neighbourhood-functions.o pbatch-supersom.o supersom.o -L/home/hornik/tmp/R-d-clang-21/lib -lR
installing to /srv/hornik/tmp/CRAN_pretest/kohonen.Rcheck/00LOCK-kohonen/00new/kohonen/libs
** R
** data
** demo
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
** building package indices
** testing if installed package can be loaded from temporary location
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (kohonen)