* installing to library ‘/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages’
* installing *source* package ‘diffcp’ ...
** this is package ‘diffcp’ version ‘0.1.2’
** package ‘diffcp’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
specified C++17
using C++ compiler: ‘Debian clang version 23.1.1 (2)’
using C++17
make[1]: Entering directory '/home/hornik/tmp/scratch/RtmpJpss7D/R.INSTALL318bf96a757f7f/diffcp/src'
clang++-23 -std=gnu++17 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG  -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/Rcpp/include' -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include' -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c RcppExports.cpp -o RcppExports.o
In file included from RcppExports.cpp:4:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:26:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseCore:61:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseCore/TriangularSolver.h:273:13: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  273 |       Index count = 0;
      |             ^
In file included from RcppExports.cpp:4:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseLU:35:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:78:9: warning: variable 'nsuper_et_post' set but not used [-Wunused-but-set-variable]
   78 |   Index nsuper_et_post = 0; // Number of relaxed snodes in postordered etree 
      |         ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:79:9: warning: variable 'nsuper_et' set but not used [-Wunused-but-set-variable]
   79 |   Index nsuper_et = 0; // Number of relaxed snodes in the original etree 
      |         ^
In file included from RcppExports.cpp:4:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:31:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/IterativeSolvers:46:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/IterativeSolvers/IDRS.h:72:10: warning: variable 'replacements' set but not used [-Wunused-but-set-variable]
   72 |                         Index replacements = 0;
      |                               ^
In file included from RcppExports.cpp:4:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:37:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/SparseExtra:45:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/SparseExtra/MarketIO.h:246:7: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  246 |   int count = 0;
      |       ^
5 warnings generated.
clang++-23 -std=gnu++17 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG  -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/Rcpp/include' -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include' -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c cones.cpp -o cones.o
In file included from cones.cpp:8:
In file included from ./cones.h:5:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:26:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseCore:61:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseCore/TriangularSolver.h:273:13: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  273 |       Index count = 0;
      |             ^
In file included from cones.cpp:8:
In file included from ./cones.h:5:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseLU:35:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:78:9: warning: variable 'nsuper_et_post' set but not used [-Wunused-but-set-variable]
   78 |   Index nsuper_et_post = 0; // Number of relaxed snodes in postordered etree 
      |         ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:79:9: warning: variable 'nsuper_et' set but not used [-Wunused-but-set-variable]
   79 |   Index nsuper_et = 0; // Number of relaxed snodes in the original etree 
      |         ^
In file included from cones.cpp:8:
In file included from ./cones.h:5:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:31:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/IterativeSolvers:46:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/IterativeSolvers/IDRS.h:72:10: warning: variable 'replacements' set but not used [-Wunused-but-set-variable]
   72 |                         Index replacements = 0;
      |                               ^
In file included from cones.cpp:8:
In file included from ./cones.h:5:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:37:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/SparseExtra:45:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/SparseExtra/MarketIO.h:246:7: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  246 |   int count = 0;
      |       ^
5 warnings generated.
clang++-23 -std=gnu++17 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG  -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/Rcpp/include' -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include' -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c deriv.cpp -o deriv.o
In file included from deriv.cpp:1:
In file included from ./deriv.h:3:
In file included from ./cones.h:5:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:26:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseCore:61:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseCore/TriangularSolver.h:273:13: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  273 |       Index count = 0;
      |             ^
In file included from deriv.cpp:1:
In file included from ./deriv.h:3:
In file included from ./cones.h:5:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseLU:35:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:78:9: warning: variable 'nsuper_et_post' set but not used [-Wunused-but-set-variable]
   78 |   Index nsuper_et_post = 0; // Number of relaxed snodes in postordered etree 
      |         ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:79:9: warning: variable 'nsuper_et' set but not used [-Wunused-but-set-variable]
   79 |   Index nsuper_et = 0; // Number of relaxed snodes in the original etree 
      |         ^
In file included from deriv.cpp:1:
In file included from ./deriv.h:3:
In file included from ./cones.h:5:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:31:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/IterativeSolvers:46:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/IterativeSolvers/IDRS.h:72:10: warning: variable 'replacements' set but not used [-Wunused-but-set-variable]
   72 |                         Index replacements = 0;
      |                               ^
In file included from deriv.cpp:1:
In file included from ./deriv.h:3:
In file included from ./cones.h:5:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:37:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/SparseExtra:45:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/SparseExtra/MarketIO.h:246:7: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  246 |   int count = 0;
      |       ^
5 warnings generated.
clang++-23 -std=gnu++17 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG  -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/Rcpp/include' -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include' -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c linop.cpp -o linop.o
In file included from linop.cpp:1:
In file included from ./linop.h:6:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:26:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseCore:61:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseCore/TriangularSolver.h:273:13: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  273 |       Index count = 0;
      |             ^
In file included from linop.cpp:1:
In file included from ./linop.h:6:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseLU:35:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:78:9: warning: variable 'nsuper_et_post' set but not used [-Wunused-but-set-variable]
   78 |   Index nsuper_et_post = 0; // Number of relaxed snodes in postordered etree 
      |         ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:79:9: warning: variable 'nsuper_et' set but not used [-Wunused-but-set-variable]
   79 |   Index nsuper_et = 0; // Number of relaxed snodes in the original etree 
      |         ^
In file included from linop.cpp:1:
In file included from ./linop.h:6:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:31:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/IterativeSolvers:46:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/IterativeSolvers/IDRS.h:72:10: warning: variable 'replacements' set but not used [-Wunused-but-set-variable]
   72 |                         Index replacements = 0;
      |                               ^
In file included from linop.cpp:1:
In file included from ./linop.h:6:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:37:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/SparseExtra:45:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/SparseExtra/MarketIO.h:246:7: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  246 |   int count = 0;
      |       ^
linop.cpp:57:32: warning: lambda capture 'cols' is not used [-Wunused-lambda-capture]
   56 |   const VecFn result_matvec = [linear_operators, rows,
      |                                                      ~
   57 |                                cols](const Vector &x) -> Vector {
      |                                ^~~~
linop.cpp:69:51: warning: lambda capture 'rows' is not used [-Wunused-lambda-capture]
   69 |   const VecFn result_rmatvec = [linear_operators, rows,
      |                                                 ~~^~~~
7 warnings generated.
clang++-23 -std=gnu++17 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG  -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/Rcpp/include' -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include' -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c lsqr.cpp -o lsqr.o
In file included from lsqr.cpp:1:
In file included from ./lsqr.h:3:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:26:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseCore:61:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseCore/TriangularSolver.h:273:13: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  273 |       Index count = 0;
      |             ^
In file included from lsqr.cpp:1:
In file included from ./lsqr.h:3:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseLU:35:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:78:9: warning: variable 'nsuper_et_post' set but not used [-Wunused-but-set-variable]
   78 |   Index nsuper_et_post = 0; // Number of relaxed snodes in postordered etree 
      |         ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:79:9: warning: variable 'nsuper_et' set but not used [-Wunused-but-set-variable]
   79 |   Index nsuper_et = 0; // Number of relaxed snodes in the original etree 
      |         ^
In file included from lsqr.cpp:1:
In file included from ./lsqr.h:3:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:31:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/IterativeSolvers:46:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/IterativeSolvers/IDRS.h:72:10: warning: variable 'replacements' set but not used [-Wunused-but-set-variable]
   72 |                         Index replacements = 0;
      |                               ^
In file included from lsqr.cpp:1:
In file included from ./lsqr.h:3:
In file included from ./eigen_includes.h:10:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:37:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/SparseExtra:45:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/SparseExtra/MarketIO.h:246:7: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  246 |   int count = 0;
      |       ^
5 warnings generated.
clang++-23 -std=gnu++17 -I"/home/hornik/tmp/R.check/r-devel-clang/Work/build/include" -DNDEBUG  -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/Rcpp/include' -I'/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include' -I/usr/local/include -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic   -c wrapper.cpp -o wrapper.o
In file included from wrapper.cpp:16:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:26:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseCore:61:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseCore/TriangularSolver.h:273:13: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  273 |       Index count = 0;
      |             ^
In file included from wrapper.cpp:16:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/Sparse:29:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/SparseLU:35:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:78:9: warning: variable 'nsuper_et_post' set but not used [-Wunused-but-set-variable]
   78 |   Index nsuper_et_post = 0; // Number of relaxed snodes in postordered etree 
      |         ^
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/Eigen/src/SparseLU/SparseLU_heap_relax_snode.h:79:9: warning: variable 'nsuper_et' set but not used [-Wunused-but-set-variable]
   79 |   Index nsuper_et = 0; // Number of relaxed snodes in the original etree 
      |         ^
In file included from wrapper.cpp:16:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:31:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/IterativeSolvers:46:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/IterativeSolvers/IDRS.h:72:10: warning: variable 'replacements' set but not used [-Wunused-but-set-variable]
   72 |                         Index replacements = 0;
      |                               ^
In file included from wrapper.cpp:16:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigen.h:25:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/RcppEigenForward.h:37:
In file included from /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/SparseExtra:45:
/home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/RcppEigen/include/unsupported/Eigen/src/SparseExtra/MarketIO.h:246:7: warning: variable 'count' set but not used [-Wunused-but-set-variable]
  246 |   int count = 0;
      |       ^
5 warnings generated.
clang++-23 -std=gnu++17 -shared -L/home/hornik/tmp/R.check/r-devel-clang/Work/build/lib -Wl,-O1 -o diffcp.so RcppExports.o cones.o deriv.o linop.o lsqr.o wrapper.o -L/home/hornik/tmp/R.check/r-devel-clang/Work/build/lib -lR
make[1]: Leaving directory '/home/hornik/tmp/scratch/RtmpJpss7D/R.INSTALL318bf96a757f7f/diffcp/src'
make[1]: Entering directory '/home/hornik/tmp/scratch/RtmpJpss7D/R.INSTALL318bf96a757f7f/diffcp/src'
make[1]: Leaving directory '/home/hornik/tmp/scratch/RtmpJpss7D/R.INSTALL318bf96a757f7f/diffcp/src'
installing to /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/00LOCK-diffcp/00new/diffcp/libs
** R
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
*** copying figures
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (diffcp)