* installing *source* package ‘hann’ ...
** this is package ‘hann’ version ‘1.0’
** using staged installation
** libs
using C compiler: ‘Debian clang version 19.1.7 (3+b1)’
clang-19 -std=gnu23 -I"/home/hornik/tmp/R/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c common_utils.c -o common_utils.o
clang-19 -std=gnu23 -I"/home/hornik/tmp/R/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c energy.c -o energy.o
clang-19 -std=gnu23 -I"/home/hornik/tmp/R/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c hann.c -o hann.o
clang-19 -std=gnu23 -I"/home/hornik/tmp/R/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c prototype_6.c -o prototype_6.o
clang-19 -std=gnu23 -I"/home/hornik/tmp/R/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -c prototype_7.c -o prototype_7.o
prototype_7.c:186:26: error: use of undeclared identifier 'KC'
  186 |     O = (double*)R_alloc(KC, sizeof(double));
      |                          ^
prototype_7.c:189:19: error: use of undeclared identifier 'np1'
  189 |     bias = PARA + np1;
      |                   ^
prototype_7.c:193:21: error: use of undeclared identifier 'np1'
  193 |         grad_bias = GRAD + np1;
      |                            ^
prototype_7.c:195:31: error: use of undeclared identifier 'KC'
  195 |         Deviation = (double*)R_alloc(KC, sizeof(double));
      |                                      ^
prototype_7.c:196:27: error: use of undeclared identifier 'KC'
  196 |         bar_O = (double*)R_alloc(KC, sizeof(double));
      |                                  ^
prototype_7.c:201:37: error: use of undeclared identifier 'K'
  201 |     fast_mat_prod_0(sigma_xi, w, O, K, C, N);
      |                                     ^
prototype_7.c:201:40: error: use of undeclared identifier 'C'
  201 |     fast_mat_prod_0(sigma_xi, w, O, K, C, N);
      |                                        ^
prototype_7.c:201:43: error: use of undeclared identifier 'N'
  201 |     fast_mat_prod_0(sigma_xi, w, O, K, C, N);
      |                                           ^
prototype_7.c:203:21: error: use of undeclared identifier 'KC'
  203 |     for (i = 0; i < KC; i++)
      |                     ^
prototype_7.c:204:35: error: use of undeclared identifier 'K'
  204 |         O[i] = tanh(BETA * O[i] + bias[i/K]); // integer division (i/K)
      |                                          ^
prototype_7.c:204:14: error: use of undeclared identifier 'BETA'
  204 |         O[i] = tanh(BETA * O[i] + bias[i/K]); // integer division (i/K)
      |                     ^
prototype_7.c:206:9: error: use of undeclared identifier 'control_list'
  206 |     if (control_list[2]) {
      |         ^
prototype_7.c:207:26: error: use of undeclared identifier 'K'
  207 |         k = do_error_rate(E, O, K, C);
      |                                 ^
prototype_7.c:207:29: error: use of undeclared identifier 'C'
  207 |         k = do_error_rate(E, O, K, C);
      |                                    ^
prototype_7.c:208:39: error: use of undeclared identifier 'K'
  208 |         Rprintf("Error rate = %d / %d\n", k, K);
      |                                              ^
prototype_7.c:212:18: error: use of undeclared identifier 'KC'
  212 |         for (i = 0; i < KC; i++)
      |                         ^
prototype_7.c:217:18: error: use of undeclared identifier 'KC'
  217 |         for (i = 0; i < KC; i++) {
      |                         ^
prototype_7.c:222:18: error: use of undeclared identifier 'KC'
  222 |         for (i = 0; i < KC; i++)
      |                         ^
prototype_7.c:234:15: error: use of undeclared identifier 'BETA'
  234 |     tmp = 2 * BETA;
      |               ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
make: *** [/home/hornik/tmp/R/etc/Makeconf:202: prototype_7.o] Error 1
ERROR: compilation failed for package ‘hann’
* removing ‘/srv/hornik/tmp/CRAN_pretest/hann.Rcheck/hann’