diff -aur 1/tests/matheval.c 2/tests/matheval.c
--- 1/tests/matheval.c	2013-08-14 21:22:08.000000000 +0100
+++ 2/tests/matheval.c	2017-12-30 21:01:53.333215271 +0000
@@ -51,7 +51,7 @@
 
 /* Guile interface for libmatheval library.  Procedures below are simple
  * wrappers for corresponding libmatheval procedures. */
-static scm_sizet evaluator_destroy_scm(SCM evaluator_smob);
+static size_t evaluator_destroy_scm(SCM evaluator_smob);
 static SCM      evaluator_create_scm(SCM string);
 static SCM      evaluator_evaluate_scm(SCM evaluator_smob, SCM count,
 				       SCM names, SCM values);
@@ -122,7 +122,7 @@
 }
 
 /* Wrapper for evaluator_destroy() procedure from libmatheval library. */
-static          scm_sizet
+static          size_t
 evaluator_destroy_scm(SCM evaluator_smob)
 {
 	SCM_ASSERT((SCM_NIMP(evaluator_smob)
@@ -245,9 +245,9 @@
 	list = SCM_EOL;
 	for (i = 0; i < count; i++)
 		list =
-		    scm_append_x(scm_listify
+		    scm_append_x(scm_list_n
 				 (list,
-				  scm_listify(scm_makfrom0str(names[i]),
+				  scm_list_n(scm_makfrom0str(names[i]),
 					      SCM_UNDEFINED),
 				  SCM_UNDEFINED));