* installing *source* package ‘surveygraph’ ...
** this is package ‘surveygraph’ version ‘1.0.0’
** using staged installation
** libs
using C++ compiler: ‘Debian clang version 19.1.7 (3+b2)’
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c init.cc -o init.o
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c make_projection_pilot.cc -o make_projection_pilot.o
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c make_threshold_profile_pilot.cc -o make_threshold_profile_pilot.o
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c surveygraph_edgelist.cc -o surveygraph_edgelist.o
surveygraph_edgelist.cc:46:9: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation]
   46 |         edgelist.insert(edge{std::set<int>{int(i), int(j)}, w});
      |         ^
surveygraph_edgelist.cc:43:7: note: previous statement is here
   43 |       else if(metric == 1)
      |       ^
1 warning generated.
clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R/include" -DNDEBUG   -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3   -fpic  -g -O3 -Wall -pedantic -Wno-missing-template-arg-list-after-template-kw -Wdeprecated-literal-operator  -c surveygraph_make_projection.cc -o surveygraph_make_projection.o
surveygraph_make_projection.cc:23:20: error: use of undeclared identifier 'ceil'
   23 |   int target = int(ceil(methodval * (survey.size() - 1))) + 1; 
      |                    ^
surveygraph_make_projection.cc:59:20: error: use of undeclared identifier 'ceil'
   59 |   int target = int(ceil(methodval * ecomplete)); 
      |                    ^
2 errors generated.
make: *** [/home/hornik/tmp/R/etc/Makeconf:207: surveygraph_make_projection.o] Error 1
ERROR: compilation failed for package ‘surveygraph’
* removing ‘/srv/hornik/tmp/CRAN_pretest/surveygraph.Rcheck/surveygraph’