Building w/o Python works again

source/blender/blenkernel/intern/fcurve.c

@@ -1945,7 +1945,7 @@ float evaluate_driver(PathResolvedRNA *anim_rna, ChannelDriver *driver, const fl
 				BLI_mutex_unlock(&python_driver_lock);
 			}
 #else /* WITH_PYTHON*/
-			(void)evaltime;
+			UNUSED_VARS(anim_rna, evaltime);
 #endif /* WITH_PYTHON*/
 			break;
 		}

source/blender/editors/interface/interface.c

@@ -2335,11 +2335,10 @@ bool ui_but_string_set_eval_num(bContext *C, uiBut *but, const char *str, double
 
 #else /* WITH_PYTHON */
 
-	*value = atof(str);
+	*r_value = atof(str);
 	ok = true;
 
-	(void)C;
-	(void)but;
+	UNUSED_VARS(C, but);
 
 #endif /* WITH_PYTHON */