* installing *source* package ‘LearnNonparam’ ...
** using staged installation
** libs
using C++ compiler: ‘Debian clang version 19.1.5 (1)’
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -I../inst/include/ -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c RcppExports.cpp -o RcppExports.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -I../inst/include/ -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/Rcpp/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c pmt_interface.cpp -o pmt_interface.o
pmt_interface.cpp:5:10: fatal error: 'pmt/permutation.hpp' file not found
    5 | #include "pmt/permutation.hpp"
      |          ^~~~~~~~~~~~~~~~~~~~~
1 error generated.
make: *** [/home/hornik/tmp/R-d-clang-19/etc/Makeconf:202: pmt_interface.o] Error 1
ERROR: compilation failed for package ‘LearnNonparam’
* removing ‘/srv/hornik/tmp/CRAN_pretest/LearnNonparam.Rcheck/LearnNonparam’