+dnl ------ Memory debugging
+AC_ARG_ENABLE(memdebug, [ --enable-memdebug enable memory debugging],[enable_memdebug=$enableval],[enable_memdebug=none])
+if test "$enable_memdebug" = "yes"; then
+ AC_DEFINE(TRACE_XMALLOC,2)
+elif test "$enable_memdebug" = "no"; then
+ AC_DEFINE(TRACE_XMALLOC,0)
+fi
+dnl