* installing *source* package ‘NMF’ ...
** using staged installation
** libs
using C compiler: ‘Debian clang version 18.1.8 (9)’
using C++ compiler: ‘Debian clang version 18.1.8 (9)’
clang++-18  -std=gnu++17 -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 -DR_NO_REMAP -c distance.cpp -o distance.o
clang++-18  -std=gnu++17 -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 -DR_NO_REMAP -c divergence.cpp -o divergence.o
In file included from divergence.cpp:16:
divergence.cpp:82:28: error: use of undeclared identifier 'duplicate'; did you mean 'Rf_duplicate'?
   82 |         PROTECT(res = (dup != 0 ? duplicate(h) : h) ); nprotect++;
      |                                   ^~~~~~~~~
      |                                   Rf_duplicate
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:385:31: note: expanded from macro 'PROTECT'
  385 | #define PROTECT(s)      Rf_protect(s)
      |                                    ^
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:519:6: note: 'Rf_duplicate' declared here
  519 | SEXP Rf_duplicate(SEXP);
      |      ^
In file included from divergence.cpp:16:
divergence.cpp:165:28: error: use of undeclared identifier 'duplicate'; did you mean 'Rf_duplicate'?
  165 |         PROTECT(res = (dup != 0 ? duplicate(w) : w) ); nprotect++;
      |                                   ^~~~~~~~~
      |                                   Rf_duplicate
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:385:31: note: expanded from macro 'PROTECT'
  385 | #define PROTECT(s)      Rf_protect(s)
      |                                    ^
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:519:6: note: 'Rf_duplicate' declared here
  519 | SEXP Rf_duplicate(SEXP);
      |      ^
divergence.cpp:20:19: error: use of undeclared identifier 'ScalarInteger'; did you mean 'Rf_ScalarInteger'?
   20 |                         , SEXP nbterms=ScalarInteger(0), SEXP ncterms=ScalarInteger(0)
      |                                        ^~~~~~~~~~~~~
      |                                        Rf_ScalarInteger
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:1122:7: note: 'Rf_ScalarInteger' declared here
 1122 | SEXP     Rf_ScalarInteger(int);
      |          ^
divergence.cpp:20:50: error: use of undeclared identifier 'ScalarInteger'; did you mean 'Rf_ScalarInteger'?
   20 |                         , SEXP nbterms=ScalarInteger(0), SEXP ncterms=ScalarInteger(0)
      |                                                                       ^~~~~~~~~~~~~
      |                                                                       Rf_ScalarInteger
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:1122:7: note: 'Rf_ScalarInteger' declared here
 1122 | SEXP     Rf_ScalarInteger(int);
      |          ^
divergence.cpp:21:15: error: use of undeclared identifier 'ScalarLogical'; did you mean 'Rf_ScalarLogical'?
   21 |                         , SEXP dup=ScalarLogical(1)) {
      |                                    ^~~~~~~~~~~~~
      |                                    Rf_ScalarLogical
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:1123:7: note: 'Rf_ScalarLogical' declared here
 1123 | SEXP     Rf_ScalarLogical(int);
      |          ^
divergence.cpp:35:20: error: use of undeclared identifier 'ScalarInteger'; did you mean 'Rf_ScalarInteger'?
   35 |                                 , SEXP nbterms=ScalarInteger(0), SEXP ncterms=ScalarInteger(0)
      |                                                ^~~~~~~~~~~~~
      |                                                Rf_ScalarInteger
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:1122:7: note: 'Rf_ScalarInteger' declared here
 1122 | SEXP     Rf_ScalarInteger(int);
      |          ^
divergence.cpp:35:51: error: use of undeclared identifier 'ScalarInteger'; did you mean 'Rf_ScalarInteger'?
   35 |                                 , SEXP nbterms=ScalarInteger(0), SEXP ncterms=ScalarInteger(0)
      |                                                                               ^~~~~~~~~~~~~
      |                                                                               Rf_ScalarInteger
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:1122:7: note: 'Rf_ScalarInteger' declared here
 1122 | SEXP     Rf_ScalarInteger(int);
      |          ^
divergence.cpp:36:16: error: use of undeclared identifier 'ScalarLogical'; did you mean 'Rf_ScalarLogical'?
   36 |                                 , SEXP dup=ScalarLogical(1)) {
      |                                            ^~~~~~~~~~~~~
      |                                            Rf_ScalarLogical
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:1123:7: note: 'Rf_ScalarLogical' declared here
 1123 | SEXP     Rf_ScalarLogical(int);
      |          ^
8 errors generated.
make: *** [/home/hornik/tmp/R-d-clang-18/etc/Makeconf:202: divergence.o] Error 1
ERROR: compilation failed for package ‘NMF’
* removing ‘/srv/hornik/tmp/CRAN/NMF.Rcheck/NMF’