* installing *source* package ‘SparseChol’ ... ** using staged installation ** libs using C++ compiler: ‘Debian clang version 19.1.4 (1)’ using C++17 clang++-19 -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-19/include" -DNDEBUG -I../inst/include/ -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/Rcpp/include' -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/RcppEigen/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O3 -Wall -pedantic -DR_NO_REMAP -c RcppExports.cpp -o RcppExports.o RcppExports.cpp:4:10: fatal error: '../inst/include/SparseChol.h' file not found 4 | #include "../inst/include/SparseChol.h" | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. make: *** [/home/hornik/tmp/R-d-clang-19/etc/Makeconf:202: RcppExports.o] Error 1 ERROR: compilation failed for package ‘SparseChol’ * removing ‘/srv/hornik/tmp/CRAN_pretest/SparseChol.Rcheck/SparseChol’