diff -u --recursive sphinxbase-5prealpha-vanilla/swig/sphinxbase.i sphinxbase-5prealpha/swig/sphinxbase.i
--- sphinxbase-5prealpha-vanilla/swig/sphinxbase.i	2016-02-12 15:25:38.000000000 -0600
+++ sphinxbase-5prealpha/swig/sphinxbase.i	2022-02-11 13:30:49.867414011 -0600
@@ -74,9 +74,7 @@
 %begin %{
 
 #ifndef __cplusplus
-typedef int bool;
-#define true 1
-#define false 0
+#include <stdbool.h>
 #endif
 
 #include <sphinxbase/cmd_ln.h>