* installing *source* package ‘poLCA’ ...
** this is package ‘poLCA’ version ‘1.6.0’
** using staged installation
** libs
using C compiler: ‘Debian clang version 21.1.8 (1+b1)’
clang-21 -std=gnu23 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c init_poLCA.c -o init_poLCA.o
clang-21 -std=gnu23 -I"/home/hornik/tmp/R-d-clang-21/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c poLCA.c -o poLCA.o
poLCA.c:38:37: error: use of undeclared identifier 'DOUBLE_XMAX'
   38 |                 for (j=0;j<cclasses;j++) lik[j] = DOUBLE_XMAX;
      |                                                   ^~~~~~~~~~~
poLCA.c:72:10: warning: variable 'totalChoices' set but not used [-Wunused-but-set-variable]
   72 |         int i,j,totalChoices;
      |                 ^
1 warning and 1 error generated.
make: *** [/home/hornik/tmp/R-d-clang-21/etc/Makeconf:194: poLCA.o] Error 1
ERROR: compilation failed for package ‘poLCA’
* removing ‘/srv/hornik/tmp/CRAN_pretest/poLCA.Rcheck/poLCA’