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-rw-r--r--libguile/objects.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libguile/objects.h b/libguile/objects.h
index 9dc6c2a67..d982cd833 100644
--- a/libguile/objects.h
+++ b/libguile/objects.h
@@ -200,6 +200,7 @@ extern SCM *scm_smob_class;
/* Plugin Goops functions. */
extern SCM (*scm_make_extended_class) (char *type_name);
+extern void (*scm_make_port_classes) (int ptobnum, char *type_name);
extern void (*scm_change_object_class) (SCM, SCM, SCM);
extern void (*scm_memoize_method) (SCM x, SCM args);