* installing to library ‘/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages’
* installing *source* package ‘readsparse’ ...
** package ‘readsparse’ successfully unpacked and MD5 sums checked
** using staged installation
checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C++... yes
checking whether clang++-18 -std=gnu++17 accepts -g... yes
checking for clang++-18 -std=gnu++17 option to enable C++11 features... none needed
configure: creating ./config.status
config.status: creating src/Makevars
** libs
using C++ compiler: ‘Debian clang version 18.1.4 (1)’
make[1]: Entering directory '/tmp/Rtmp1htogA/R.INSTALLd51f51d4a72e6/readsparse/src'
clang++-18 -std=gnu++17 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG -DRCPP_USE_UNWIND_PROTECT -D_FOR_R -D_FOR_CRAN -DSUPPORTS_RESTRICT=1 -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/Rcpp/include' -I/usr/local/include -D_FORTIFY_SOURCE=3  -fvisibility=hidden -fpic  -g -O3 -Wall -pedantic  -c RcppExports.cpp -o RcppExports.o
clang++-18 -std=gnu++17 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG -DRCPP_USE_UNWIND_PROTECT -D_FOR_R -D_FOR_CRAN -DSUPPORTS_RESTRICT=1 -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/Rcpp/include' -I/usr/local/include -D_FORTIFY_SOURCE=3  -fvisibility=hidden -fpic  -g -O3 -Wall -pedantic  -c Rwrapper.cpp -o Rwrapper.o
In file included from Rwrapper.cpp:35:
./utils.h:39:13: warning: unused function 'print_errno' [-Wunused-function]
   39 | static void print_errno()
      |             ^~~~~~~~~~~
1 warning generated.
clang++-18 -std=gnu++17 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG -DRCPP_USE_UNWIND_PROTECT -D_FOR_R -D_FOR_CRAN -DSUPPORTS_RESTRICT=1 -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/Rcpp/include' -I/usr/local/include -D_FORTIFY_SOURCE=3  -fvisibility=hidden -fpic  -g -O3 -Wall -pedantic  -c reader.cpp -o reader.o
clang++-18 -std=gnu++17 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG -DRCPP_USE_UNWIND_PROTECT -D_FOR_R -D_FOR_CRAN -DSUPPORTS_RESTRICT=1 -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/Rcpp/include' -I/usr/local/include -D_FORTIFY_SOURCE=3  -fvisibility=hidden -fpic  -g -O3 -Wall -pedantic  -c writer.cpp -o writer.o
clang++-18 -std=gnu++17 -shared -L/home/hornik/tmp/R.check/r-devel-clang/Work/build/lib -Wl,-O1 -o readsparse.so RcppExports.o Rwrapper.o reader.o writer.o -L/home/hornik/tmp/R.check/r-devel-clang/Work/build/lib -lR
make[1]: Leaving directory '/tmp/Rtmp1htogA/R.INSTALLd51f51d4a72e6/readsparse/src'
make[1]: Entering directory '/tmp/Rtmp1htogA/R.INSTALLd51f51d4a72e6/readsparse/src'
make[1]: Leaving directory '/tmp/Rtmp1htogA/R.INSTALLd51f51d4a72e6/readsparse/src'
installing to /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/00LOCK-readsparse/00new/readsparse/libs
** R
** 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
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (readsparse)