* installing *source* package ‘rpc’ ...
** this is package ‘rpc’ version ‘2.0’
** using staged installation
** libs
using C++ compiler: ‘Debian clang version 19.1.7 (1+b1)’
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/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 -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c RcppExports.cpp -o RcppExports.o
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/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 -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c colMSD_dgc.cpp -o colMSD_dgc.o
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/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 -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c colMSD_matrix.cpp -o colMSD_matrix.o
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/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 -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c compute_rpc.cpp -o compute_rpc.o
compute_rpc.cpp:1:10: fatal error: 'RcppArmadillo.h' file not found
    1 | #include <RcppArmadillo.h>
      |          ^~~~~~~~~~~~~~~~~
1 error generated.
make: *** [/home/hornik/tmp/R-d-clang-19/etc/Makeconf:209: compute_rpc.o] Error 1
ERROR: compilation failed for package ‘rpc’
* removing ‘/srv/hornik/tmp/CRAN_pretest/rpc.Rcheck/rpc’