Hello, I'm working on adding boost-python to the pyodide distribution (https://github.com/pyodide/pyodide-recipes/pull/513), i.e., compile boost-python with emscripten. My bootstrap command is: ./bootstrap.sh --prefix=${INSTALL_DIR} --with-libraries=python --with-python=python$PYMAJOR.$PYMINOR It seems to detect the Python install in the correct env: Detecting Python version... 3.13 Detecting Python root... /home/runner/miniconda3/envs/pyodide-env The b2 command is a bit more complex, but it works for a lot of other boost libraries: ./b2 variant=release toolset=clang-emscripten link=static threading=single --disable-icu \ cxxflags="$SIDE_MODULE_CXXFLAGS -fwasm-exceptions -DBOOST_SP_DISABLE_THREADS=1" \ cflags="$SIDE_MODULE_CFLAGS -fwasm-exceptions -DBOOST_SP_DISABLE_THREADS=1" \ linkflags="-fpic $SIDE_MODULE_LDFLAGS" \ python=$PYMAJOR.$PYMINOR \ --layout=system -j"${PYODIDE_JOBS:-3}" --prefix=${INSTALL_DIR} \ -d2 install It says: - python : building which seems good, but then the only thing it installs are cmake files: /home/runner/work/pyodide-recipes/pyodide-recipes/packages/.libs /home/runner/work/pyodide-recipes/pyodide-recipes/packages/.libs/lib /home/runner/work/pyodide-recipes/pyodide-recipes/packages/.libs/lib/cmake /home/runner/work/pyodide-recipes/pyodide-recipes/packages/.libs/lib/cmake/Boost -1.84.0 /home/runner/work/pyodide-recipes/pyodide-recipes/packages/.libs/lib/cmake/Boost -1.84.0/BoostConfigVersion.cmake /home/runner/work/pyodide-recipes/pyodide-recipes/packages/.libs/lib/cmake/Boost -1.84.0/BoostConfig.cmake /home/runner/work/pyodide-recipes/pyodide-recipes/packages/.libs/lib/cmake/Boost DetectToolset-1.84.0.cmake The libraries I expect, libboost_python and the numpy module, are not installed. I don't think they're compiled at all, but there is no error. Do you have any idea what I am missing? Thanks, FX