diff --git a/src/if_mzsch.c b/src/if_mzsch.c
index f9bcd5d..2384464 100644
--- a/src/if_mzsch.c
+++ b/src/if_mzsch.c
@@ -965,6 +965,7 @@
 #ifdef MZSCHEME_COLLECTS
     /* setup 'current-library-collection-paths' parameter */
 # if MZSCHEME_VERSION_MAJOR >= 299
+#  ifdef MACOS
     {
 	Scheme_Object	*coll_byte_string = NULL;
 	Scheme_Object	*coll_char_string = NULL;
@@ -985,6 +986,36 @@
 	MZ_GC_CHECK();
 	MZ_GC_UNREG();
     }
+#  else
+   {
+	Scheme_Object	*coll_byte_string = NULL;
+	Scheme_Object	*coll_char_string = NULL;
+	Scheme_Object	*coll_path = NULL;
+	Scheme_Object	*coll_pair = NULL;
+	Scheme_Config	*config = NULL;
+
+	MZ_GC_DECL_REG(5);
+	MZ_GC_VAR_IN_REG(0, coll_byte_string);
+	MZ_GC_VAR_IN_REG(1, coll_char_string);
+	MZ_GC_VAR_IN_REG(2, coll_path);
+	MZ_GC_VAR_IN_REG(3, coll_pair);
+	MZ_GC_VAR_IN_REG(4, config);
+	MZ_GC_REG();
+	coll_byte_string = scheme_make_byte_string(MZSCHEME_COLLECTS);
+	MZ_GC_CHECK();
+	coll_char_string = scheme_byte_string_to_char_string(coll_byte_string);
+	MZ_GC_CHECK();
+	coll_path = scheme_char_string_to_path(coll_char_string);
+	MZ_GC_CHECK();
+	coll_pair = scheme_make_pair(coll_path, scheme_null);
+	MZ_GC_CHECK();
+	config = scheme_current_config();
+	MZ_GC_CHECK();
+	scheme_set_param(config, MZCONFIG_COLLECTION_PATHS, coll_pair);
+	MZ_GC_CHECK();
+	MZ_GC_UNREG();
+    }
+#  endif
 # else
     {
 	Scheme_Object	*coll_string = NULL;
diff --git a/src/testdir/test70.in b/src/testdir/test70.in
index 24c0c12..9fbe818 100644
--- a/src/testdir/test70.in
+++ b/src/testdir/test70.in
@@ -38,8 +38,7 @@
 :" circular list (at the same time test lists containing lists)
 :mz (set-car! (cddr l) l)
 :let l2 = mzeval("h")["list"]
-:" bug: this returns item2, but it should be l2
-:if l2[2] == "item2"
+:if l2[2] == l2
 :let res = "OK"
 :else
 :let res = "FAILED: " . l2[2]
diff --git a/src/version.c b/src/version.c
index 8cd0432..2f17d2c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -726,6 +726,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    798,
+/**/
     797,
 /**/
     796,