meta.yaml

package:
  name: boost-python
  version: 1.90.0
  tag:
    - library
    - static_library
source:
  url: https://github.com/boostorg/boost/releases/download/boost-1.90.0/boost-1.90.0-b2-nodocs.tar.gz
  sha256: e848446c6fec62d8a96b44ed7352238b3de040b8b9facd4d6963b32f541e00f5
  extract_dir: boost-1.90.0

build:
  type: static_library
  script: |
    export INSTALL_DIR=${WASM_LIBRARY_DIR}
    ./bootstrap.sh --prefix=${INSTALL_DIR} --with-libraries=python \
      --with-python=python$PYMAJOR.$PYMINOR

    # https://github.com/emscripten-core/emscripten/issues/17052
    # Without this, boost outputs WASM modules not static library archives as an output.
    # I don't understand why... the jam file used by boost is quite hard to understand.
    printf "using clang : emscripten : emcc : <archiver>emar <ranlib>emranlib <linker>emlink ;\n" | tee -a ./project-config.jam

    # Bypass the standard python detection in the build system
    sed -i 's/using python/#using python/' ./project-config.jam
    printf "using python : $PYMAJOR.$PYMINOR : python$PYMAJOR.$PYMINOR : $PYTHONINCLUDE : $HOSTINSTALLDIR/lib/python$PYMAJOR.$PYMINOR.a ;\n" | tee -a ./project-config.jam

    # Work around emscripten limited support in boost-container
    # https://github.com/boostorg/container/issues/276
    sed -i 's/#if defined(BOOST_HAS_PTHREADS)/#if 1/' ./boost/container/detail/thread_mutex.hpp

    ./b2 variant=release toolset=clang-emscripten link=static threading=single \
      address-model=32 --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

about:
  home: https://www.boost.org/
  summary: Free peer-reviewed portable C++ source libraries.
  license: Boost
extra:
  recipe-maintainers:
    - johnwason