* installing *source* package ‘kohonen’ ...
** this is package ‘kohonen’ version ‘3.0.13’
** using staged installation
** libs
using C++ compiler: ‘g++-15 (Debian 15.2.0-12) 15.2.0’
g++-15 -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/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3  -fopenmp -fpic  -g -O2 -Wall -pedantic -mtune=native   -c RcppExports.cpp -o RcppExports.o
g++-15 -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/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3  -fopenmp -fpic  -g -O2 -Wall -pedantic -mtune=native   -c batch-supersom.cpp -o batch-supersom.o
g++-15 -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/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3  -fopenmp -fpic  -g -O2 -Wall -pedantic -mtune=native   -c distance-functions.cpp -o distance-functions.o
In file included from /home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include/RcppCommon.h:29,
                 from /home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include/Rcpp.h:27,
                 from distance-functions.h:5,
                 from distance-functions.cpp:7:
/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include/Rcpp/r/check_r_headers.h:27:21: note: ‘#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’
   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"
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/hornik/tmp/R/include/R.h:73,
                 from distance-functions.h:4:
/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include/Rcpp/exceptions.h: In function ‘void Rcpp::Rf_warning(const char*, Args&& ...) [with Args = {const char*}]’:
/home/hornik/tmp/R/include/R_ext/Error.h:89:17: warning: infinite recursion detected [-Winfinite-recursion]
   89 | #define warning Rf_warning
      |                 ^~~~~~~~~~
/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include/Rcpp/exceptions.h:188:17: note: in expansion of macro ‘warning’
  188 |     inline void warning(const char* fmt, Args&&... args ) {
      |                 ^~~~~~~
In file included from /home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include/RcppCommon.h:131:
/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include/Rcpp/exceptions.h:189:19: note: recursive call
  189 |         Rf_warning("%s", tfm::format(fmt, std::forward<Args>(args)... ).c_str());
      |         ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++-15 -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/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3  -fopenmp -fpic  -g -O2 -Wall -pedantic -mtune=native   -c map.cpp -o map.o
g++-15 -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/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3  -fopenmp -fpic  -g -O2 -Wall -pedantic -mtune=native   -c neighbourhood-functions.cpp -o neighbourhood-functions.o
g++-15 -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/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3  -fopenmp -fpic  -g -O2 -Wall -pedantic -mtune=native   -c pbatch-supersom.cpp -o pbatch-supersom.o
g++-15 -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/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3  -fopenmp -fpic  -g -O2 -Wall -pedantic -mtune=native   -c supersom.cpp -o supersom.o
g++-15 -std=gnu++17 -shared -L/home/hornik/tmp/R/lib -Wl,-O1 -o kohonen.so RcppExports.o batch-supersom.o distance-functions.o map.o neighbourhood-functions.o pbatch-supersom.o supersom.o -fopenmp -L/home/hornik/tmp/R/lib -lR
installing to /home/hornik/tmp/CRAN_recheck/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)