* installing *source* package ‘afttest’ ...
** this is package ‘afttest’ version ‘4.5.2’
** using staged installation
** libs
using C++ compiler: ‘Debian clang version 21.1.8 (3)’
clang++-21 -std=gnu++20 -I"/home/hornik/tmp/R/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.6/x86_64-linux-gnu/RcppArmadillo/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c afttest.cpp -o afttest.o
clang++-21 -std=gnu++20 -shared -L/home/hornik/tmp/R/lib -Wl,-O1 -o afttest.so afttest.o -L/home/hornik/tmp/R/lib -lR
installing to /srv/hornik/tmp/CRAN_pretest/afttest.Rcheck/00LOCK-afttest/00new/afttest/libs
** R
** 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
Error: package or namespace load failed for ‘afttest’ in dyn.load(file, DLLpath = DLLpath, ...):
 unable to load shared object '/srv/hornik/tmp/CRAN_pretest/afttest.Rcheck/00LOCK-afttest/00new/afttest/libs/afttest.so':
  /srv/hornik/tmp/CRAN_pretest/afttest.Rcheck/00LOCK-afttest/00new/afttest/libs/afttest.so: undefined symbol: dpotrf_
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/srv/hornik/tmp/CRAN_pretest/afttest.Rcheck/afttest’