ext/cumo/narray/array.c in cumo-0.2.4 vs ext/cumo/narray/array.c in cumo-0.2.5

@@ -115,14 +115,16 @@
 static int cumo_na_mdai_object_type(int type, VALUE v)
 {
     if (rb_obj_is_kind_of(v, rb_cRange)) {
         MDAI_ATTR_TYPE(type,v,begin);
         MDAI_ATTR_TYPE(type,v,end);
-    } else if (rb_obj_is_kind_of(v, cumo_na_cStep)) {
+#ifdef HAVE_RB_ARITHMETIC_SEQUENCE_EXTRACT
+    } else if (rb_obj_is_kind_of(v, rb_cArithSeq)) {
         MDAI_ATTR_TYPE(type,v,begin);
         MDAI_ATTR_TYPE(type,v,end);
         MDAI_ATTR_TYPE(type,v,step);
+#endif
     } else {
         type = cumo_na_object_type(type,v);
     }
     return type;
 }
@@ -203,10 +205,14 @@
             if ( cumo_na_mdai_investigate(mdai,ndim+1) ) {
                 len--; /* Array is empty */
             }
         }
         else
-        if (rb_obj_is_kind_of(v, rb_cRange) || rb_obj_is_kind_of(v, cumo_na_cStep)) {
+#ifdef HAVE_RB_ARITHMETIC_SEQUENCE_EXTRACT
+        if (rb_obj_is_kind_of(v, rb_cRange) || rb_obj_is_kind_of(v, rb_cArithSeq)) {
+#else
+        if (rb_obj_is_kind_of(v, rb_cRange) || rb_obj_is_kind_of(v, rb_cEnumerator)) {
+#endif
             cumo_na_step_sequence(v,&length,&dbeg,&dstep);
             len += length-1;
             mdai->type = cumo_na_mdai_object_type(mdai->type, v);
         }
         else if (CumoIsNArray(v)) {