Package check result: WARNING Check: whether package can be installed, Result: WARNING Found the following significant warnings: ../src/s2/util/gtl/compact_array.h:127:28: warning: ISO C++ forbids zero-size array [-Wpedantic] See ‘/home/hornik/tmp/CRAN_recheck/s2.Rcheck/00install.out’ for details. Used C compiler: ‘gcc-14 (Debian 14.2.0-19) 14.2.0’ Used C++ compiler: ‘g++-14 (Debian 14.2.0-19) 14.2.0’ No changes to worse in reverse depends.