diff --git a/src/arkode/arkode.c b/src/arkode/arkode.c
index cbcdc8d326..f00cd120ae 100644
--- a/src/arkode/arkode.c
+++ b/src/arkode/arkode.c
@@ -659,7 +659,7 @@ int arkEvolve(ARKodeMem ark_mem, sunrealtype tout, N_Vector yout,
   sunrealtype troundoff, nrm;
   sunbooleantype inactive_roots;
   sunrealtype dsm;
-  int nflag, attempts, ncf, nef, constrfails;
+  int nflag, ncf, nef, constrfails;
   int relax_fails;
 
   /* Check and process inputs */
@@ -843,16 +843,21 @@ int arkEvolve(ARKodeMem ark_mem, sunrealtype tout, N_Vector yout,
 
     /* Looping point for step attempts */
     dsm = ZERO;
-    attempts = ncf = nef = constrfails = ark_mem->last_kflag = 0;
+    ncf = nef = constrfails = ark_mem->last_kflag = 0;
     relax_fails = 0;
     nflag = FIRST_CALL;
+
+#if SUNDIALS_LOGGING_LEVEL >= SUNDIALS_LOGGING_DEBUG
+    int attempts = 0;
+#endif
+
     for(;;) {
 
       /* increment attempt counters */
-      attempts++;
       ark_mem->nst_attempts++;
 
 #if SUNDIALS_LOGGING_LEVEL >= SUNDIALS_LOGGING_DEBUG
+      attempts++;
       SUNLogger_QueueMsg(ARK_LOGGER, SUN_LOGLEVEL_DEBUG,
                          "ARKODE::arkEvolve", "start-step",
                          "step = %li, attempt = %i, h = %"RSYM", tcur = %"RSYM,
diff --git a/src/cvode/cvode_impl.h b/src/cvode/cvode_impl.h
index caf84fbf60..f8e825b7c0 100644
--- a/src/cvode/cvode_impl.h
+++ b/src/cvode/cvode_impl.h
@@ -476,7 +476,7 @@ typedef struct CVodeMemRec {
 
   /* Resize history workspace */
   N_Vector resize_wrk[L_MAX];
-  booleantype first_step_after_resize;
+  sunbooleantype first_step_after_resize;
 
   int cv_err_weight_method;
 
diff --git a/src/cvode/cvode_resize.c b/src/cvode/cvode_resize.c
index 5d39933774..fc76a630fe 100644
--- a/src/cvode/cvode_resize.c
+++ b/src/cvode/cvode_resize.c
@@ -23,8 +23,8 @@
 #include "cvode_impl.h"
 #include <sundials/sundials_types.h>
 
-#define ZERO    RCONST(0.0)     /* real 0.0     */
-#define ONE     RCONST(1.0)     /* real 1.0     */
+#define ZERO    SUN_RCONST(0.0)     /* real 0.0     */
+#define ONE     SUN_RCONST(1.0)     /* real 1.0     */
 
 /* -----------------------------------------------------------------------------
  * Build Adams Nordsieck array from f(t,y) history
diff --git a/test/unit_tests/cvode/CXX_serial/test_nordsieck.cpp b/test/unit_tests/cvode/CXX_serial/test_nordsieck.cpp
index 02c30c6ce2..7607a072a1 100644
--- a/test/unit_tests/cvode/CXX_serial/test_nordsieck.cpp
+++ b/test/unit_tests/cvode/CXX_serial/test_nordsieck.cpp
@@ -12,8 +12,8 @@
 #include <nvector/nvector_serial.h>
 #include "test_utilities.hpp"
 
-#define ZERO    RCONST(0.0)     /* real 0.0     */
-#define ONE     RCONST(1.0)     /* real 1.0     */
+#define ZERO    SUN_RCONST(0.0)     /* real 0.0     */
+#define ONE     SUN_RCONST(1.0)     /* real 1.0     */
 #define PI 3.14159265358979323846
 
 /* -----------------------------------------------------------------------------