add gretl_list_free() for use by gretl4py

Author: AllinCottrell

lib/src/gretl_list.c

@@ -171,6 +171,13 @@ int *gretl_list_new (int nterms)
     return list;
 }
 
+/* experimental wrapper for use with gretl4py */
+
+void gretl_list_free (int *list)
+{
+    free(list);
+}
+
 /**
  * gretl_list_array_new:
  * @nlists: the number of lists to create.

lib/src/gretl_list.h

@@ -24,6 +24,8 @@
 
 int *gretl_list_new (int nterms);
 
+void gretl_list_free (int *list);
+
 int *gretl_list_resize (int **oldlist, int nterms);
 
 int *gretl_list_append_term (int **plist, int v);