X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/sod/blobdiff_plain/d145f6df86aca5c0b520f300ce8821e762a9707b..05b7480df1a1804bbf3ba3f7ce00f757cf703b1a:/src/class-make-proto.lisp

diff --git a/src/class-make-proto.lisp b/src/class-make-proto.lisp
index c04727c..8b024bd 100644
--- a/src/class-make-proto.lisp
+++ b/src/class-make-proto.lisp
@@ -45,8 +45,14 @@ (defun make-sod-class (name superclasses pset &optional location)
 
   (with-default-error-location (location)
     (let* ((pset (property-set pset))
-	   (class (make-instance (get-property pset :lisp-metaclass :symbol
-					       'sod-class)
+	   (best-class (or (get-property pset :lisp-metaclass :symbol nil)
+			   (if superclasses
+			       (maximum (mapcar #'class-of superclasses)
+					#'subtypep
+					(format nil "Lisp metaclass for ~A"
+						name))
+			       'sod-class)))
+	   (class (make-instance best-class
 				 :name name
 				 :superclasses superclasses
 				 :location (file-location location)