sciforge-build 2026.6.17

Build-time C++ binding-substrate headers for the SciForge ecosystem (never a runtime dependency).

sciforge-build

Build-time distribution of the SciForge C++ binding substrate headers (<sciforge/binding/...>). It is never a runtime dependency — list it in your build-system.requires and add sciforge_build.get_include() to your extension's include_dirs at wheel-build time. Pure-Python (py3-none-any); CalVer, aligned with the SciForge tag.

Resolving the headers (canonical consumption pattern)

A wheel/sdist build (pip, python -m build, cibuildwheel) resolves the headers through the sciforge-build package above. But a co-development checkout wants the sibling SciForge tree, not a possibly stale pip-installed package. The canonical resolver in a consumer's setup.py tries, in order, an explicit SCIFORGE_INCLUDE override, a sibling sciforge checkout, then the package — so local dev wins, CI/wheel falls through to the package:

def _sciforge_include():
    header = os.path.join("sciforge", "binding", "error.hpp")
    env = os.environ.get("SCIFORGE_INCLUDE")
    if env and os.path.exists(os.path.join(env, header)):
        return env
    sibling = os.path.join(os.path.dirname(os.path.abspath(__file__)), "..", "sciforge", "include")
    if os.path.exists(os.path.join(sibling, header)):
        return sibling
    try:
        import sciforge_build
        return sciforge_build.get_include()
    except ImportError:
        raise SystemExit("sciforge headers not found: check out RECHE23/sciforge as a "
                         "sibling, pip install sciforge-build, or set SCIFORGE_INCLUDE")

Then include_dirs=["include", _sciforge_include()], and have the Makefile python target export SCIFORGE_INCLUDE=$(SCIFORGE_INCLUDE) (default ../sciforge/include) so a sibling build needs no installed sciforge-build. The exists(error.hpp) guard makes a sibling that lacks binding/ fall through to the package.