* installing *source* package ‘drgee’ ...
** this is package ‘drgee’ version ‘1.1.10-3’
** package ‘drgee’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C++ compiler: ‘g++ (GCC) 15.1.1 20250521 (Red Hat 15.1.1-2)’
make[1]: Entering directory '/data/gannet/ripley/R/packages/tests-CXX20/drgee/src'
g++ -std=gnu++20 -I"/data/gannet/ripley/R/cxx20/include" -DNDEBUG  -I'/data/gannet/ripley/R/test-dev/Rcpp/include' -I'/data/gannet/ripley/R/test-dev/RcppArmadillo/include' -I/usr/local/include    -fpic  -g -O2 -Wall -pedantic -mtune=native -Wno-ignored-attributes -Wno-parentheses -Wp,-D_FORTIFY_SOURCE=3 -fexceptions -fstack-protector-strong -fstack-clash-protection -fcf-protection   -c drgee.cpp -o drgee.o
drgee.cpp: In function ‘SEXPREC* _center(SEXP, SEXP)’:
drgee.cpp:167:14: error: reference to ‘span’ is ambiguous
  167 |         Uout(span(clust_start_idx, clust_end_idx),l) -= u_sums(l) / (clust_end_idx - clust_start_idx + 1);
      |              ^~~~
In file included from /data/gannet/ripley/R/test-dev/RcppArmadillo/include/current/armadillo:155,
                 from /data/gannet/ripley/R/test-dev/RcppArmadillo/include/RcppArmadillo/interface/RcppArmadilloForward.h:57,
                 from /data/gannet/ripley/R/test-dev/RcppArmadillo/include/RcppArmadillo.h:32,
                 from drgee.cpp:1:
/data/gannet/ripley/R/test-dev/RcppArmadillo/include/current/armadillo_bits/span.hpp:38:8: note: candidates are: ‘struct arma::span’
   38 | struct span : public span_base<>
      |        ^~~~
In file included from /usr/include/c++/15/format:51,
                 from /usr/include/c++/15/bits/chrono_io.h:41,
                 from /usr/include/c++/15/chrono:3378,
                 from /data/gannet/ripley/R/test-dev/RcppArmadillo/include/current/armadillo:53:
/usr/include/c++/15/span:60:11: note:                 ‘template<class _Type, long unsigned int _Extent> class std::span’
   60 |     class span;
      |           ^~~~
drgee.cpp:197:10: error: reference to ‘span’ is ambiguous
  197 |     Uout(span(clust_start_idx, clust_end_idx),l) -= u_sums(l) / (clust_end_idx - clust_start_idx + 1);
      |          ^~~~
/data/gannet/ripley/R/test-dev/RcppArmadillo/include/current/armadillo_bits/span.hpp:38:8: note: candidates are: ‘struct arma::span’
   38 | struct span : public span_base<>
      |        ^~~~
/usr/include/c++/15/span:60:11: note:                 ‘template<class _Type, long unsigned int _Extent> class std::span’
   60 |     class span;
      |           ^~~~
make[1]: *** [/data/gannet/ripley/R/cxx20/etc/Makeconf:201: drgee.o] Error 1
make[1]: Target 'all' not remade because of errors.
make[1]: Leaving directory '/data/gannet/ripley/R/packages/tests-CXX20/drgee/src'
ERROR: compilation failed for package ‘drgee’
* removing ‘/data/gannet/ripley/R/packages/tests-CXX20/drgee.Rcheck/drgee’