Allow the user to set PIP_CONSTRAINT and it affect build-system.requires

2023-11-24 11:49:26 +00:00
parent 859ebaf371
commit d198c90f7a
4 changed files with 44 additions and 3 deletions
@@ -409,7 +409,9 @@ def build(options: Options, tmp_path: Path) -> None:
                                config.version
                            )
                        )
-                        build_env["PIP_CONSTRAINT"] = constraint_path.as_uri()
+                        build_env["PIP_CONSTRAINT"] = (
+                            constraint_path.as_uri() + " " + build_env.get("PIP_CONSTRAINT", "")
+                        )
                    build_env["VIRTUALENV_PIP"] = get_pip_version(env)
                    call(
                        "python",