diff -upk.orig postfix-2.2.4.orig/src/postconf/install_table.h postfix-2.2.4/src/postconf/install_table.h
--- postfix-2.2.4.orig/src/postconf/install_table.h	2002-01-15 15:32:15 +0000
+++ postfix-2.2.4/src/postconf/install_table.h	2005-02-27 00:20:37 +0000
@@ -1 +1,2 @@
     VAR_CONFIG_DIR, DEF_CONFIG_DIR, &var_config_dir, 1, 0,
+    "virtual_maps", "", &var_virt_maps_legacy, 0, 0,
diff -upk.orig postfix-2.2.4.orig/src/postconf/install_vars.h postfix-2.2.4/src/postconf/install_vars.h
--- postfix-2.2.4.orig/src/postconf/install_vars.h	2002-01-15 15:32:22 +0000
+++ postfix-2.2.4/src/postconf/install_vars.h	2005-02-27 00:20:37 +0000
@@ -1 +1,2 @@
 char   *var_config_dir;
+char   *var_virt_maps_legacy;