* installing *source* package ‘hdflex’ ...
** using staged installation
** libs
using C compiler: ‘Debian clang version 18.1.8 (11)’
using C++ compiler: ‘Debian clang version 18.1.8 (11)’
using C++11
clang++-18  -std=gnu++11 -I"/home/hornik/tmp/R-d-clang-18/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppArmadillo/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppThread/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -DSTRICT_R_HEADERS=1   -fpic  -g -O3 -Wall -pedantic -Wno-error=enum-constexpr-conversion -DR_NO_REMAP -c RcppExports.cpp -o RcppExports.o
In file included from RcppExports.cpp:5:
In file included from /home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppThread/include/RcppThread.h:9:
/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppThread/include/RcppThread/RMonitor.hpp:10:9: warning: 'R_NO_REMAP' macro redefined [-Wmacro-redefined]
   10 | #define R_NO_REMAP
      |         ^
<command line>:5:9: note: previous definition is here
    5 | #define R_NO_REMAP 1
      |         ^
1 warning generated.
clang++-18  -std=gnu++11 -I"/home/hornik/tmp/R-d-clang-18/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppArmadillo/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppThread/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -DSTRICT_R_HEADERS=1   -fpic  -g -O3 -Wall -pedantic -Wno-error=enum-constexpr-conversion -DR_NO_REMAP -c dsc.cpp -o dsc.o
clang-18  -I"/home/hornik/tmp/R-d-clang-18/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppArmadillo/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppThread/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -DSTRICT_R_HEADERS=1  -fpic  -g -O3 -Wall -pedantic -c init.c -o init.o
clang++-18  -std=gnu++11 -I"/home/hornik/tmp/R-d-clang-18/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppArmadillo/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppThread/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -DSTRICT_R_HEADERS=1   -fpic  -g -O3 -Wall -pedantic -Wno-error=enum-constexpr-conversion -DR_NO_REMAP -c stsc.cpp -o stsc.o
clang++-18  -std=gnu++11 -I"/home/hornik/tmp/R-d-clang-18/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppArmadillo/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppThread/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -DSTRICT_R_HEADERS=1   -fpic  -g -O3 -Wall -pedantic -Wno-error=enum-constexpr-conversion -DR_NO_REMAP -c stsc_parallel.cpp -o stsc_parallel.o
In file included from stsc_parallel.cpp:3:
In file included from /home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppThread/include/RcppThread.h:9:
/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppThread/include/RcppThread/RMonitor.hpp:10:9: warning: 'R_NO_REMAP' macro redefined [-Wmacro-redefined]
   10 | #define R_NO_REMAP
      |         ^
<command line>:5:9: note: previous definition is here
    5 | #define R_NO_REMAP 1
      |         ^
1 warning generated.
clang++-18  -std=gnu++11 -I"/home/hornik/tmp/R-d-clang-18/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppArmadillo/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppThread/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -DSTRICT_R_HEADERS=1   -fpic  -g -O3 -Wall -pedantic -Wno-error=enum-constexpr-conversion -DR_NO_REMAP -c tvc.cpp -o tvc.o
clang++-18 -std=gnu++11 -shared -L/home/hornik/tmp/R-d-clang-18/lib -Wl,-O1 -o hdflex.so RcppExports.o dsc.o init.o stsc.o stsc_parallel.o tvc.o -llapack -L/home/hornik/tmp/R-d-clang-18/lib -lRblas -L/usr/lib/llvm-18/lib -lFortran_main -lFortranRuntime -lFortranDecimal -lm -L/home/hornik/tmp/R-d-clang-18/lib -lR
installing to /srv/hornik/tmp/CRAN_pretest/hdflex.Rcheck/00LOCK-hdflex/00new/hdflex/libs
** R
** data
*** moving datasets to lazyload DB
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
*** copying figures
** building package indices
** testing if installed package can be loaded from temporary location
Error: package or namespace load failed for ‘hdflex’ in dyn.load(file, DLLpath = DLLpath, ...):
 unable to load shared object '/srv/hornik/tmp/CRAN_pretest/hdflex.Rcheck/00LOCK-hdflex/00new/hdflex/libs/hdflex.so':
  /srv/hornik/tmp/CRAN_pretest/hdflex.Rcheck/00LOCK-hdflex/00new/hdflex/libs/hdflex.so: undefined symbol: __atomic_compare_exchange
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/srv/hornik/tmp/CRAN_pretest/hdflex.Rcheck/hdflex’