diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index 11e6d3de58..1db12c2313 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -10,7 +10,7 @@
  * Written by Peter Eisentraut <peter_e@gmx.net>.
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.256 2005/03/19 23:27:07 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.257 2005/03/25 16:17:27 tgl Exp $
  *
  *--------------------------------------------------------------------
  */
@@ -4187,6 +4187,8 @@ DefineCustomIntVariable(
 						const char *short_desc,
 						const char *long_desc,
 						int *valueAddr,
+						int minValue,
+						int maxValue,
 						GucContext context,
 						GucIntAssignHook assign_hook,
 						GucShowHook show_hook)
@@ -4199,6 +4201,8 @@ DefineCustomIntVariable(
 
 	var->variable = valueAddr;
 	var->reset_val = *valueAddr;
+	var->min = minValue;
+	var->max = maxValue;
 	var->assign_hook = assign_hook;
 	var->show_hook = show_hook;
 	define_custom_variable(&var->gen);
@@ -4210,6 +4214,8 @@ DefineCustomRealVariable(
 						 const char *short_desc,
 						 const char *long_desc,
 						 double *valueAddr,
+						 double minValue,
+						 double maxValue,
 						 GucContext context,
 						 GucRealAssignHook assign_hook,
 						 GucShowHook show_hook)
@@ -4222,6 +4228,8 @@ DefineCustomRealVariable(
 
 	var->variable = valueAddr;
 	var->reset_val = *valueAddr;
+	var->min = minValue;
+	var->max = maxValue;
 	var->assign_hook = assign_hook;
 	var->show_hook = show_hook;
 	define_custom_variable(&var->gen);
diff --git a/src/include/utils/guc.h b/src/include/utils/guc.h
index 33366078c8..ed2748e8b2 100644
--- a/src/include/utils/guc.h
+++ b/src/include/utils/guc.h
@@ -7,7 +7,7 @@
  * Copyright (c) 2000-2005, PostgreSQL Global Development Group
  * Written by Peter Eisentraut <peter_e@gmx.net>.
  *
- * $PostgreSQL: pgsql/src/include/utils/guc.h,v 1.59 2005/03/19 23:27:11 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/utils/guc.h,v 1.60 2005/03/25 16:17:28 tgl Exp $
  *--------------------------------------------------------------------
  */
 #ifndef GUC_H
@@ -151,6 +151,8 @@ extern void DefineCustomIntVariable(
 						const char *short_desc,
 						const char *long_desc,
 						int *valueAddr,
+						int minValue,
+						int maxValue,
 						GucContext context,
 						GucIntAssignHook assign_hook,
 						GucShowHook show_hook);
@@ -160,6 +162,8 @@ extern void DefineCustomRealVariable(
 						 const char *short_desc,
 						 const char *long_desc,
 						 double *valueAddr,
+						 double minValue,
+						 double maxValue,
 						 GucContext context,
 						 GucRealAssignHook assign_hook,
 						 GucShowHook show_hook);