-elif test "x$withval" = "xsrvx" ; then
- echo "$as_me:$LINENO: result: srvx" >&5
-echo "${ECHO_T}srvx" >&6
+elif test "x$withval" = "xx3" ; then
+ echo "$as_me:$LINENO: result: x3" >&5
+echo "${ECHO_T}x3" >&6
+
+cat >>confdefs.h <<\_ACEOF
+#define WITH_MALLOC_X3 1
+_ACEOF
+
+ MODULE_OBJS="$MODULE_OBJS alloc-x3.\$(OBJEXT)"
+elif test "x$withval" = "xslab" ; then
+ echo "$as_me:$LINENO: result: slab" >&5
+echo "${ECHO_T}slab" >&6