Error(s) in re-building vignettes:
  ...
--- re-building ‘DetailedDocumentation.Rmd’ using rmarkdown
using C++ compiler: ‘Debian clang version 15.0.6’
using C++17
In file included from file28d64f5dde4ad9.cpp:4:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr.hpp:42:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:18: warning: variable 'delta_par' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                 ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:29: warning: variable 'delta_t' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                            ^
2 warnings generated.
--- finished re-building ‘DetailedDocumentation.Rmd’

--- re-building ‘InformationForPackageAuthors.Rmd’ using rmarkdown
using C++ compiler: ‘Debian clang version 15.0.6’
using C++17
In file included from file2908b57a7e8de3.cpp:4:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr.hpp:42:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:18: warning: variable 'delta_par' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                 ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:29: warning: variable 'delta_t' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                            ^
2 warnings generated.
Building shared library for Rcpp code chunk...
using C++ compiler: ‘Debian clang version 15.0.6’
using C++17
In file included from file2908b574d95158.cpp:2:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr.hpp:42:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:29: warning: variable 'delta_t' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                            ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:18: warning: variable 'delta_par' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                 ^
2 warnings generated.
Building shared library for Rcpp code chunk...
using C++ compiler: ‘Debian clang version 15.0.6’
using C++17
In file included from file2908b5439f8459.cpp:6:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr.hpp:42:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:29: warning: variable 'delta_t' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                            ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:18: warning: variable 'delta_par' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                 ^
2 warnings generated.
Building shared library for Rcpp code chunk...
using C++ compiler: ‘Debian clang version 15.0.6’
using C++17
In file included from file2908b546a101b5.cpp:6:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr.hpp:42:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:29: warning: variable 'delta_t' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                            ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:18: warning: variable 'delta_par' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                 ^
2 warnings generated.
Building shared library for Rcpp code chunk...
using C++ compiler: ‘Debian clang version 15.0.6’
using C++17
In file included from file2908b5246cb846.cpp:6:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr.hpp:42:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:29: warning: variable 'delta_t' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                            ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:18: warning: variable 'delta_par' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                 ^
2 warnings generated.
Building shared library for Rcpp code chunk...
using C++ compiler: ‘Debian clang version 15.0.6’
using C++17
In file included from file2908b5639d140.cpp:7:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr.hpp:42:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:29: warning: variable 'delta_t' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                            ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:18: warning: variable 'delta_par' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                 ^
In file included from file2908b5639d140.cpp:7:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr.hpp:29:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/vec.hpp:101:79: warning: field 'nrows' will be initialized after field 'ncols' [-Wreorder-ctor]
  VEC(const int r, const int c, T* ptr, int cob) : subsetted(0), ismatrix(1), nrows(r), ncols(c), d(r*c, ptr, cob), temp(1) {} //cob = copy, owning, borrow
                                                                              ^~~~~~~   ~~~~~~~
                                                                              ncols(c   nrows(r
file2908b5639d140.cpp:30:8: note: in instantiation of member function 'etr::VEC<double>::VEC' requested here
  sexp c(2, 2, c_rcpp.begin(), 2);
       ^
3 warnings generated.
using C++ compiler: ‘Debian clang version 15.0.6’
using C++17
In file included from file2908b511d7eb0.cpp:4:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr.hpp:42:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:18: warning: variable 'delta_par' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                 ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/ast2ast/include/etr_bits/interpolation.hpp:33:29: warning: variable 'delta_t' set but not used [-Wunused-but-set-variable]
  double y0, y1, delta_par, delta_t, m;
                            ^
2 warnings generated.
using C++ compiler: ‘Debian clang version 15.0.6’
using C++11
In file included from file2908b576afc885.cpp:5:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/r2sundials/include/r2sundials.h:4:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/r2sundials/include/cvodes/cvodes.h:21:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/r2sundials/include/sundials/sundials_context.h:44:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/r2sundials/include/sundials/sundials_context.hpp:31:20: error: no member named 'make_unique' in namespace 'std'
    sunctx_ = std::make_unique<SUNContext>();
              ~~~~~^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/r2sundials/include/sundials/sundials_context.hpp:31:32: error: unexpected type name 'SUNContext': expected expression
    sunctx_ = std::make_unique<SUNContext>();
                               ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/r2sundials/include/sundials/sundials_context.hpp:31:44: error: expected expression
    sunctx_ = std::make_unique<SUNContext>();
                                           ^
3 errors generated.
make[1]: *** [/home/hornik/tmp/R.check/r-devel-clang/Work/build/etc/Makeconf:198: file2908b576afc885.o] Error 1
Quitting from lines 418-454 (InformationForPackageAuthors.Rmd) 
Error: processing vignette ‘InformationForPackageAuthors.Rmd’ failed with diagnostics:
Error 1 occurred building shared library.
--- failed re-building ‘InformationForPackageAuthors.Rmd’

SUMMARY: processing the following file failed:
  ‘InformationForPackageAuthors.Rmd’

Error: Vignette re-building failed.
Execution halted