* installing *source* package ‘morse’ ... ** using staged installation ** libs using C compiler: ‘Debian clang version 18.1.8 (9)’ clang-18 -I"/home/hornik/tmp/R-d-clang-18/include" -DNDEBUG -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -DSTRICT_R_HEADERS=1 -fpic -g -O3 -Wall -pedantic -c gutsRedIT.c -o gutsRedIT.o gutsRedIT.c:43:26: error: call to undeclared function 'Calloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 43 | double *arr = (double*)Calloc(N, double); | ^ gutsRedIT.c:43:36: error: expected expression 43 | double *arr = (double*)Calloc(N, double); | ^ gutsRedIT.c:44:30: error: expected expression 44 | kd = (double*)Calloc(MCMC, double); | ^ gutsRedIT.c:45:30: error: expected expression 45 | hb = (double*)Calloc(MCMC, double); | ^ gutsRedIT.c:53:3: error: call to undeclared function 'Free'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 53 | Free(arr); | ^ gutsRedIT.c:53:3: note: did you mean 'free'? /usr/include/stdlib.h:687:13: note: 'free' declared here 687 | extern void free (void *__ptr) __THROW; | ^ gutsRedIT.c:61:3: error: call to undeclared function 'Free'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 61 | Free(kd); | ^ 6 errors generated. make: *** [/home/hornik/tmp/R-d-clang-18/etc/Makeconf:195: gutsRedIT.o] Error 1 ERROR: compilation failed for package ‘morse’ * removing ‘/srv/hornik/tmp/CRAN_pretest/morse.Rcheck/morse’