* installing *source* package ‘gpboost’ ...
** this is package ‘gpboost’ version ‘1.5.7’
** using staged installation
checking location of R... /home/hornik/tmp/R
checking whether MM_PREFETCH works... yes
checking whether MM_MALLOC works... yes
configure: creating ./config.status
config.status: creating src/Makevars
** libs
using C compiler: ‘Debian clang version 19.1.7 (3)’
using C++ compiler: ‘Debian clang version 19.1.7 (3)’
using C++17
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG -I./include -DEIGEN_MPL2_ONLY -DMM_PREFETCH=1 -DMM_MALLOC=1 -DUSE_SOCKET -DLGB_R_BUILD  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -pthread -fpic  -g -O3 -Wall -pedantic -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c boosting/boosting.cpp -o boosting/boosting.o
In file included from boosting/boosting.cpp:7:
In file included from boosting/dart.hpp:16:
In file included from boosting/gbdt.h:10:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:12:
In file included from ./include/GPBoost/type_defs.h:20:
In file included from ./include/Eigen/Sparse:26:
In file included from ./include/Eigen/SparseCore:61:
./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 boosting/boosting.cpp:7:
In file included from boosting/dart.hpp:16:
In file included from boosting/gbdt.h:10:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:12:
In file included from ./include/GPBoost/type_defs.h:20:
In file included from ./include/Eigen/Sparse:29:
In file included from ./include/Eigen/SparseLU:35:
./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 
      |         ^
./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 boosting/boosting.cpp:7:
In file included from boosting/dart.hpp:16:
In file included from boosting/gbdt.h:10:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:13:
In file included from ./include/GPBoost/re_model_template.h:15:
In file included from ./include/GPBoost/re_comp.h:13:
./include/GPBoost/cov_fcts.h:2053:11: warning: unused variable 'range_dist' [-Wunused-variable]
 2053 |                         double range_dist = cm_dist * dist_ij;
      |                                ^~~~~~~~~~
In file included from boosting/boosting.cpp:7:
In file included from boosting/dart.hpp:16:
In file included from boosting/gbdt.h:10:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:13:
./include/GPBoost/re_model_template.h:8967:10: warning: variable 'counter' set but not used [-Wunused-but-set-variable]
 8967 |                                         int counter = 0;
      |                                             ^
5 warnings generated.
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG -I./include -DEIGEN_MPL2_ONLY -DMM_PREFETCH=1 -DMM_MALLOC=1 -DUSE_SOCKET -DLGB_R_BUILD  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -pthread -fpic  -g -O3 -Wall -pedantic -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c boosting/gbdt.cpp -o boosting/gbdt.o
In file included from boosting/gbdt.cpp:6:
In file included from boosting/gbdt.h:10:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:12:
In file included from ./include/GPBoost/type_defs.h:20:
In file included from ./include/Eigen/Sparse:26:
In file included from ./include/Eigen/SparseCore:61:
./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 boosting/gbdt.cpp:6:
In file included from boosting/gbdt.h:10:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:12:
In file included from ./include/GPBoost/type_defs.h:20:
In file included from ./include/Eigen/Sparse:29:
In file included from ./include/Eigen/SparseLU:35:
./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 
      |         ^
./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 boosting/gbdt.cpp:6:
In file included from boosting/gbdt.h:10:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:13:
In file included from ./include/GPBoost/re_model_template.h:15:
In file included from ./include/GPBoost/re_comp.h:13:
./include/GPBoost/cov_fcts.h:2053:11: warning: unused variable 'range_dist' [-Wunused-variable]
 2053 |                         double range_dist = cm_dist * dist_ij;
      |                                ^~~~~~~~~~
In file included from boosting/gbdt.cpp:6:
In file included from boosting/gbdt.h:10:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:13:
./include/GPBoost/re_model_template.h:8967:10: warning: variable 'counter' set but not used [-Wunused-but-set-variable]
 8967 |                                         int counter = 0;
      |                                             ^
5 warnings generated.
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG -I./include -DEIGEN_MPL2_ONLY -DMM_PREFETCH=1 -DMM_MALLOC=1 -DUSE_SOCKET -DLGB_R_BUILD  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -pthread -fpic  -g -O3 -Wall -pedantic -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c boosting/gbdt_model_text.cpp -o boosting/gbdt_model_text.o
In file included from boosting/gbdt_model_text.cpp:6:
In file included from ./include/LightGBM/metric.h:12:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:12:
In file included from ./include/GPBoost/type_defs.h:20:
In file included from ./include/Eigen/Sparse:26:
In file included from ./include/Eigen/SparseCore:61:
./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 boosting/gbdt_model_text.cpp:6:
In file included from ./include/LightGBM/metric.h:12:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:12:
In file included from ./include/GPBoost/type_defs.h:20:
In file included from ./include/Eigen/Sparse:29:
In file included from ./include/Eigen/SparseLU:35:
./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 
      |         ^
./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 boosting/gbdt_model_text.cpp:6:
In file included from ./include/LightGBM/metric.h:12:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:13:
In file included from ./include/GPBoost/re_model_template.h:15:
In file included from ./include/GPBoost/re_comp.h:13:
./include/GPBoost/cov_fcts.h:2053:11: warning: unused variable 'range_dist' [-Wunused-variable]
 2053 |                         double range_dist = cm_dist * dist_ij;
      |                                ^~~~~~~~~~
In file included from boosting/gbdt_model_text.cpp:6:
In file included from ./include/LightGBM/metric.h:12:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:13:
./include/GPBoost/re_model_template.h:8967:10: warning: variable 'counter' set but not used [-Wunused-but-set-variable]
 8967 |                                         int counter = 0;
      |                                             ^
5 warnings generated.
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG -I./include -DEIGEN_MPL2_ONLY -DMM_PREFETCH=1 -DMM_MALLOC=1 -DUSE_SOCKET -DLGB_R_BUILD  -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -pthread -fpic  -g -O3 -Wall -pedantic -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c boosting/gbdt_prediction.cpp -o boosting/gbdt_prediction.o
In file included from boosting/gbdt_prediction.cpp:6:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:12:
In file included from ./include/GPBoost/type_defs.h:20:
In file included from ./include/Eigen/Sparse:26:
In file included from ./include/Eigen/SparseCore:61:
./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 boosting/gbdt_prediction.cpp:6:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:12:
In file included from ./include/GPBoost/type_defs.h:20:
In file included from ./include/Eigen/Sparse:29:
In file included from ./include/Eigen/SparseLU:35:
./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 
      |         ^
./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 boosting/gbdt_prediction.cpp:6:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:13:
In file included from ./include/GPBoost/re_model_template.h:15:
In file included from ./include/GPBoost/re_comp.h:13:
In file included from ./include/GPBoost/cov_fcts.h:14:
./include/GPBoost/sparse_matrix_utils.h:493:20: error: use of undeclared identifier 'omp_get_max_threads'
  493 |                 int numThreads = omp_get_max_threads();
      |                                  ^
./include/GPBoost/sparse_matrix_utils.h:497:14: error: use of undeclared identifier 'omp_get_thread_num'
  497 |                         int tid = omp_get_thread_num();
      |                                   ^
In file included from boosting/gbdt_prediction.cpp:6:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:13:
In file included from ./include/GPBoost/re_model_template.h:15:
In file included from ./include/GPBoost/re_comp.h:13:
./include/GPBoost/cov_fcts.h:2053:11: warning: unused variable 'range_dist' [-Wunused-variable]
 2053 |                         double range_dist = cm_dist * dist_ij;
      |                                ^~~~~~~~~~
In file included from boosting/gbdt_prediction.cpp:6:
In file included from ./include/LightGBM/objective_function.h:9:
In file included from ./include/GPBoost/re_model.h:13:
./include/GPBoost/re_model_template.h:8967:10: warning: variable 'counter' set but not used [-Wunused-but-set-variable]
 8967 |                                         int counter = 0;
      |                                             ^
./include/GPBoost/re_model_template.h:9844:42: warning: expression result unused [-Wunused-value]
 9844 |                                 re_comp_cross_cov_cluster_i_pred_ip->coords_;
      |                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
6 warnings and 2 errors generated.
make: *** [/home/hornik/tmp/R/etc/Makeconf:209: boosting/gbdt_prediction.o] Error 1
ERROR: compilation failed for package ‘gpboost’
* removing ‘/srv/hornik/tmp/CRAN_pretest/gpboost.Rcheck/gpboost’