config updates

Author: WillAyd

pyproject.toml

@@ -2,6 +2,7 @@
 # Minimum requirements for the build system to execute.
 # See https://github.com/scipy/scipy/pull/12940 for the AIX issue.
 requires = [
+    "cmake>=3.18.0",
     "setuptools>=51.0.0",
     "wheel",
     "Cython>=0.29.24,<3",  # Note: sync with setup.py, environment.yml and asv.conf.json

setup.cfg

@@ -31,6 +31,7 @@ project_urls =
 [options]
 packages = find:
 install_requires =
+    cmake>=3.18.0
     numpy>=1.18.5; platform_machine!='aarch64' and platform_machine!='arm64' and python_version<'3.10'
     numpy>=1.19.2; platform_machine=='aarch64' and python_version<'3.10'
     numpy>=1.20.0; platform_machine=='arm64' and python_version<'3.10'