* installing *source* package ‘cpp11tesseract’ ... ** using staged installation PKGCONFIG_CFLAGS_TESSERACT: -I/usr/include/leptonica PKGCONFIG_LIBS_TESSERACT: -ltesseract -larchive -lcurl Found pkg-config cflags and libs! Using PKG_CFLAGS=-I/usr/include/leptonica Using PKG_LIBS=-ltesseract -larchive -lcurl ** libs using C++ compiler: ‘Debian clang version 19.1.5 (1)’ clang++-19 -stdlib=libc++ -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-lcxx/include" -DNDEBUG -I/usr/include/leptonica -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/cpp11/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O3 -Wall -pedantic -DR_NO_REMAP -c cpp11.cpp -o cpp11.o clang++-19 -stdlib=libc++ -std=gnu++17 -I"/home/hornik/tmp/R-d-clang-lcxx/include" -DNDEBUG -I/usr/include/leptonica -I'/home/hornik/lib/R/Library/4.5/x86_64-linux-gnu/cpp11/include' -I/usr/local/include -DUSE_TYPE_CHECKING_STRICT -D_FORTIFY_SOURCE=3 -fpic -g -O3 -Wall -pedantic -DR_NO_REMAP -c cpp11tesseract.cpp -o cpp11tesseract.o clang++-19 -stdlib=libc++ -std=gnu++17 -shared -L/home/hornik/tmp/R-d-clang-lcxx/lib -Wl,-O1 -o cpp11tesseract.so cpp11.o cpp11tesseract.o -ltesseract -larchive -lcurl -L/home/hornik/tmp/R-d-clang-lcxx/lib -lR installing to /home/hornik/tmp/CRAN_special_clang19/cpp11tesseract.Rcheck/00LOCK-cpp11tesseract/00new/cpp11tesseract/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 Error: package or namespace load failed for ‘cpp11tesseract’ in dyn.load(file, DLLpath = DLLpath, ...): unable to load shared object '/home/hornik/tmp/CRAN_special_clang19/cpp11tesseract.Rcheck/00LOCK-cpp11tesseract/00new/cpp11tesseract/libs/cpp11tesseract.so': /home/hornik/tmp/CRAN_special_clang19/cpp11tesseract.Rcheck/00LOCK-cpp11tesseract/00new/cpp11tesseract/libs/cpp11tesseract.so: undefined symbol: _ZNK9tesseract11TessBaseAPI19GetVariableAsStringEPKcPNSt3__112basic_stringIcNS3_11char_traitsIcEENS3_9allocatorIcEEEE Error: loading failed Execution halted ERROR: loading failed * removing ‘/home/hornik/tmp/CRAN_special_clang19/cpp11tesseract.Rcheck/cpp11tesseract’