* installing *source* package ‘mnmer’ ...
** using staged installation
** libs
using C++ compiler: ‘Debian clang version 18.1.4 (1)’
clang++-18  -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-18/include" -DNDEBUG  -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/cpp11/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -DR_NO_REMAP -c mnmercpp.cc -o mnmercpp.o
mnmercpp.cc:202:13: error: use of undeclared identifier 'asInteger'; did you mean 'Rf_asInteger'?
  202 |     int m = asInteger (mm);
      |             ^~~~~~~~~
      |             Rf_asInteger
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:470:5: note: 'Rf_asInteger' declared here
  470 | int Rf_asInteger(SEXP x);
      |     ^
mnmercpp.cc:203:13: error: use of undeclared identifier 'asInteger'; did you mean 'Rf_asInteger'?
  203 |     int n = asInteger (nn);
      |             ^~~~~~~~~
      |             Rf_asInteger
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:470:5: note: 'Rf_asInteger' declared here
  470 | int Rf_asInteger(SEXP x);
      |     ^
mnmercpp.cc:220:17: error: use of undeclared identifier 'allocVector'; did you mean 'Rf_allocVector'?
  220 |     SEXP Stab = allocVector(STRSXP, result.size());
      |                 ^~~~~~~~~~~
      |                 Rf_allocVector
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:1052:10: note: 'Rf_allocVector' declared here
 1052 | SEXP     Rf_allocVector(SEXPTYPE, R_xlen_t);
      |          ^
mnmercpp.cc:223:12: error: use of undeclared identifier 'mkString'
  223 |     Stab = mkString(result.c_str());
      |            ^
mnmercpp.cc:233:25: error: use of undeclared identifier 'asInteger'; did you mean 'Rf_asInteger'?
  233 |         unsigned size = asInteger (rsize);
      |                         ^~~~~~~~~
      |                         Rf_asInteger
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:470:5: note: 'Rf_asInteger' declared here
  470 | int Rf_asInteger(SEXP x);
      |     ^
mnmercpp.cc:234:21: error: use of undeclared identifier 'asReal'
  234 |         float pni = asReal (rpni);
      |                     ^
mnmercpp.cc:251:21: error: use of undeclared identifier 'allocVector'; did you mean 'Rf_allocVector'?
  251 |         SEXP cstr = allocVector(STRSXP, sf.size());
      |                     ^~~~~~~~~~~
      |                     Rf_allocVector
/home/hornik/tmp/R-d-clang-18/include/Rinternals.h:1052:10: note: 'Rf_allocVector' declared here
 1052 | SEXP     Rf_allocVector(SEXPTYPE, R_xlen_t);
      |          ^
mnmercpp.cc:254:16: error: use of undeclared identifier 'mkString'
  254 |         cstr = mkString(sf.c_str());
      |                ^
8 errors generated.
make: *** [/home/hornik/tmp/R-d-clang-18/etc/Makeconf:200: mnmercpp.o] Error 1
ERROR: compilation failed for package ‘mnmer’
* removing ‘/srv/hornik/tmp/CRAN/mnmer.Rcheck/mnmer’