The configure script automatically detects all versions of Python and builds
the bindings for each found version. This is a problem when building outside
of a clean environment since the ports system can only build a package for one
Python flavor at a time. The found versions of Python are overridden by
environment variables set in the port Makefile.

--- configure.ac.orig	2025-06-17 08:21:23 UTC
+++ configure.ac
@@ -326,6 +326,10 @@ else
         ], :, m4_if(mym4pythonver,[any],[],[python]mym4pythonver))
         ])
 
+    # Override the automatically found Pythons with the selected version from ports.
+    PYTHONS=$BSD_PYTHON
+    PYTHON_VERSIONS=$BSD_PYTHON_VERSION
+
     # Recover some values lost in the second attempt to find Python.
     PYTHON="$(echo $PYTHONS | cut -d ' ' -f 1)"
     PYTHON_VERSION="$(echo $PYTHON_VERSIONS | cut -d ' ' -f 1)"