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* End support for Python 3.7, update cibuildwheel and publish actions Removes Python 3.7 from the support matrix, since it does not support PEP590 vectorcalls. Bumps the `cibuildwheel` and `pypa-publish` actions to their latest available versions respectively. * Add nanobind to the Bazel dependencies, add a BUILD file The build file builds nanobind as a static `cc_library`. Currently, the git SHA points to HEAD, since some necessary features have not been included in a release yet. * Delete pybind11 BUILD file * Switch bindings implementation to nanobind Switches over the binding tool to `nanobind` from `pybind11`. Most changes in the build setup itself were drop-in replacements of existing code changed to nanobind names, no new concepts needed to be implemented. Sets the minimum required macOS to 10.14 for full C++17 support. Also, to avoid ambiguities in Bazel, build for macOS 11 on Mac ARM64. * Use Bazel select for linker options Guards against unknown linker option errors by selecting required linker options for nanobind only on macOS, where they are relevant. Other changes: * Bump cibuildwheel action to v2.12.0 * Bump Bazel for aarch64 linux wheels to 6.0.0 * Remove C++17 flag from build files since it is present in setup.py `bazel build` command * Bump nanobind commit to current HEAD (TBD: Bump to next stable release) * Unbreak Windows builds of nanobind-based bindings Guards compiler options behind a new `select` macro choosing between MSVC and not MSVC. Other changes: * Inject the proper C++17 standard cxxopt in the `setup.py` build command. * Bump nanobind to current HEAD. * Make `macos` a benchmark-wide condition, with public visibility to allow its use in the nanobind BUILD file. * Fall back to `nb::implicitly_convertible` for Counter construction Since `benchmark::Counter` only has a constructor for `double`, the nanobind `nb::init_implicit` template cannot be used. Therefore, to support implicit construction from ints, we fall back to the `nb::implicitly_convertible` template instead. |
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