--- libelwix/configure.in	2024/08/14 15:48:50	1.68.2.3
+++ libelwix/configure.in	2024/08/14 15:37:35	1.69
@@ -1,6 +1,6 @@
 #
 # $Author: misho $
-# $Id: configure.in,v 1.68.2.3 2024/08/14 15:48:50 misho Exp $
+# $Id: configure.in,v 1.69 2024/08/14 15:37:35 misho Exp $
 #
 AC_INIT(libelwix, 6.0, misho@elwix.org)
 AC_CONFIG_SRCDIR([src/elwix.c])
@@ -67,7 +67,7 @@ AC_ARG_WITH(memmgr,
 	  esac ], AC_DEFINE(MEMMGR, ELWIX_MPOOL, [ELWIX memory manager]))
 AC_MSG_RESULT($MEMMGR)
 
-MPOOL_MEM_ZERO=no
+MPOOL_MEM_ZERO=yes
 AC_MSG_CHECKING(MPoll zeroing allocated memory)
 AC_ARG_ENABLE(mpool-mem-zero, 
 	      [  --enable-mpool-mem-zero MPool zeroing allocated memory], 
@@ -79,7 +79,7 @@ AC_ARG_ENABLE(mpool-mem-zero, 
 			*)
 				MPOOL_MEM_ZERO=no
 				;;
-		  esac ],)
+		  esac ], [ AC_DEFINE(MPOOL_MEM_ZERO,, [MPool zeroing memory]) ])
 AC_MSG_RESULT($MPOOL_MEM_ZERO)
 
 PATRICIA=no