Gate site_packages CMake prefix

Signed-off-by: Cristian Le <cristian.le@mpsd.mpg.de>

README.md

@@ -307,6 +307,12 @@ messages.after-failure = ""
 # A message to print after a successful build.
 messages.after-success = ""
 
+# Add the wheel install path to the CMake prefix paths.
+search.use-install-prefix = true
+
+# Add the wheel build path to the CMake prefix paths.
+search.use-build-prefix = true
+
 # List dynamic metadata fields and hook locations in this table.
 metadata = {}
 

src/scikit_build_core/builder/builder.py

@@ -132,10 +132,12 @@ def configure(
 
  # Add site-packages to the prefix path for CMake
  site_packages = Path(sysconfig.get_path("purelib"))
- self.config.prefix_dirs.append(site_packages)
+ if self.settings.search.use_install_prefix:
+ self.config.prefix_dirs.append(site_packages)
  logger.debug("SITE_PACKAGES: {}", site_packages)
  if site_packages != DIR.parent.parent:
- self.config.prefix_dirs.append(DIR.parent.parent)
+ if self.settings.search.use_build_prefix:
+ self.config.prefix_dirs.append(DIR.parent.parent)
  logger.debug("Extra SITE_PACKAGES: {}", site_packages)
 
  # Add the FindPython backport if needed

src/scikit_build_core/resources/scikit-build.schema.json

@@ -93,6 +93,22 @@
  }
  }
  },
+ "search": {
+ "additionalProperties": false,
+ "properties": {
+ "use-build-prefix": {
+ "default": true,
+ "description": "Add the wheel build path to the CMake prefix paths.",
+ "type": "boolean"
+ },
+ "use-install-prefix": {
+ "default": true,
+ "description": "Add the wheel install path to the CMake prefix paths.",
+ "type": "boolean"
+ }
+ },
+ "type": "object"
+ },
  "ninja": {
  "type": "object",
  "additionalProperties": false,
@@ -599,6 +615,9 @@
  "metadata": {
  "$ref": "#/properties/metadata"
  },
+ "search": {
+ "$ref": "#/properties/search"
+ },
  "strict-config": {
  "$ref": "#/properties/strict-config"
  },

src/scikit_build_core/settings/skbuild_model.py

@@ -80,6 +80,19 @@ class CMakeSettings:
  """
 
 
+@dataclasses.dataclass
+class SearchSettings:
+ use_install_prefix: bool = True
+ """
+ Add the wheel install path to the CMake prefix paths.
+ """
+
+ use_build_prefix: bool = True
+ """
+ Add the wheel build path to the CMake prefix paths.
+ """
+
+
 @dataclasses.dataclass
 class NinjaSettings:
  minimum_version: Optional[Version] = None
@@ -325,6 +338,7 @@ class ScikitBuildSettings:
  install: InstallSettings = dataclasses.field(default_factory=InstallSettings)
  generate: List[GenerateSettings] = dataclasses.field(default_factory=list)
  messages: MessagesSettings = dataclasses.field(default_factory=MessagesSettings)
+ search: SearchSettings = dataclasses.field(default_factory=SearchSettings)
 
  metadata: Dict[str, Dict[str, Any]] = dataclasses.field(default_factory=dict)
  """