It seems that Windows actually does have a header for <stdbool.h>.

Change-Id: I443929d07972389a8c9837926a4b7df37bd6a16a
diff --git a/include/arch/windows/AndroidConfig.h b/include/arch/windows/AndroidConfig.h
index 806887b..bb8e5ef 100644
--- a/include/arch/windows/AndroidConfig.h
+++ b/include/arch/windows/AndroidConfig.h
@@ -311,7 +311,7 @@
 /*
  * Define if <stdbool.h> exists.
  */
-/* #define HAVE_STDBOOL_H */
+#define HAVE_STDBOOL_H
 
 /*
  * Define if <sched.h> exists.