* installing *source* package ‘huge’ ...
** this is package ‘huge’ version ‘1.5’
** using staged installation
configure: creating ./config.status
config.status: creating src/Makevars
** libs
using C++ compiler: ‘Debian clang version 21.1.8 (3+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   -DSTRICT_R_HEADERS -I../include -fpic  -g -O3 -Wall -pedantic   -c RIC.cpp -o RIC.o
RIC.cpp:3:10: fatal error: 'huge/huge_core.h' file not found
    3 | #include "huge/huge_core.h"
      |          ^~~~~~~~~~~~~~~~~~
1 error generated.
make: *** [/home/hornik/tmp/R-d-clang-21/etc/Makeconf:197: RIC.o] Error 1
ERROR: compilation failed for package ‘huge’
* removing ‘/srv/hornik/tmp/CRAN_pretest/huge.Rcheck/huge’