В Sun, 19 Jan 2025 20:42:17 +0000 Pepijn de Vries <pepijn.devr...@outlook.com> пишет:
> I think I could write a similar test as used by `cpp11tesseract`: > > https://github.com/pachadotdev/cpp11tesseract/blob/2ea8287ef2c27901446bafa402728014d99904d4/configure#L66-L85 I should have replied to that thread too, but got swamped. If the compiler flags are right, $CXX -c conftest.cpp will succeed the same way that the individual object files currently successfully compile on Fedora-clang [1]: >> /usr/local/clang19/bin/clang++ -stdlib=libc++ -std=gnu++17 >> -I"/data/gannet/ripley/R/R-clang/include" -DNDEBUG -pthread >> -I'/data/gannet/ripley/R/test-clang/cpp11/include' -isystem >> /usr/local/clang19/include -I/usr/local/clang/include -fpic -O3 >> -Wall -pedantic -frtti -Wp,-D_FORTIFY_SOURCE=3 >> -Wno-missing-template-arg-list-after-template-kw -DR_NO_REMAP -c >> audio.cpp -o audio.o Even linking the shared library is not enough, because that step succeeds on Fedora-clang too: >> /usr/local/clang19/bin/clang++ -stdlib=libc++ -std=gnu++17 -shared >> -L/usr/local/clang/lib64 -L/usr/local/clang19/lib >> -L/usr/local/clang19/lib/x86_64-unknown-linux-gnu >> -L/usr/local/gcc14/lib64 -L/usr/local/lib64 -o openmpt.so audio.o >> cpp11.o ctl.o format.o get_mod.o helpers.o info.o io.o module_ext.o >> names.o render.o render_params.o repeat.o setpos.o state.o subsong.o >> -lopenmpt -lportaudiocpp -lportaudio -lm -lpthread -lasound Testing only the previous two steps will succeed during ./configure on the Fedora-clang check and then fail to load the shared library during package installation, like it currently does. Using R CMD SHLIB, on the other hand, spares the effort of trying to figure out the right compiler and giving it all the right flags. Unrelated, but speaking of the default linker flags, >> PKG_LIBS="-llibportaudio -llibportaudiocpp -llibopenmpt" These are a bit counter-intuitive. When you ask the linker to link with -lfoo, it tries to link with libfoo.a or libfoo.so, i.e. it prepends the "lib" by itself. Also unrelated, but is there OpenMPT in the macOS 'recipes' system? I think it's the recommended way of making use of third-party code in CRAN packages [2]. -- Best regards, Ivan [1] https://www.r-project.org/nosvn/R.check/r-devel-linux-x86_64-fedora-clang/openmpt-00install.html [2] https://cran.r-project.org/web/packages/external_libs.html ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
