--- a/dbhelpers.c	Wed Feb 28 22:11:39 2018 +0800
+++ b/dbhelpers.c	Thu Oct 15 19:55:15 2020 +0800
@@ -9,8 +9,9 @@
 #elif defined(HAVE_EXPLICIT_BZERO)
 	explicit_bzero(data, len);
 #else
+	/* This must be volatile to avoid compiler optimisation */
 	volatile void *p = data;
-    memset(p, 0x0, len);
+	memset((void*)p, 0x0, len);
 #endif
 }