* installing *source* package ‘chngpt’ ...
** using staged installation
** libs
using C compiler: ‘Debian clang version 19.1.3 (1)’
using C++ compiler: ‘Debian clang version 19.1.3 (1)’
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c M10.cc -o M10.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c M111.cc -o M111.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c M20.cc -o M20.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c M20c.cc -o M20c.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c M22.cc -o M22.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c M22c.cc -o M22c.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c M30.cc -o M30.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c M33c.cc -o M33c.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c Mstep.cc -o Mstep.o
clang-19  -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c doublehinge.c -o doublehinge.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c fastgrid.cc -o fastgrid.o
clang++-19  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -DSCYTHE_COMPILE_DIRECT -DSCYTHE_DEBUG=0 -DSCYTHE_RPACK -DHAVE_TRUNC  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c fastgrid2.cc -o fastgrid2.o
fastgrid2.cc:69:23: error: use of undeclared identifier 'isNull'
   69 |     bool sieveBoot = !isNull(u_sieveY);
      |                       ^
1 error generated.
make: *** [/home/hornik/tmp/R-d-clang-19/etc/Makeconf:200: fastgrid2.o] Error 1
ERROR: compilation failed for package ‘chngpt’
* removing ‘/srv/hornik/tmp/CRAN_pretest/chngpt.Rcheck/chngpt’