From 22b96f883fe2a454476b4d5fd69ee46b15889169 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Tue, 21 Jul 2020 13:13:15 -0400
Subject: [PATCH] Avoid C99-ism in pre-v12 branches.

Per buildfarm (I need to figure out why my own compiler did not
whine about this).
---
 src/backend/catalog/indexing.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/backend/catalog/indexing.c b/src/backend/catalog/indexing.c
index 674e6a8321..2f0b025079 100644
--- a/src/backend/catalog/indexing.c
+++ b/src/backend/catalog/indexing.c
@@ -187,8 +187,9 @@ CatalogTupleCheckConstraints(Relation heapRel, HeapTuple tup)
 	{
 		TupleDesc	tupdesc = RelationGetDescr(heapRel);
 		bits8	   *bp = tup->t_data->t_bits;
+		int			attnum;
 
-		for (int attnum = 0; attnum < tupdesc->natts; attnum++)
+		for (attnum = 0; attnum < tupdesc->natts; attnum++)
 		{
 			Form_pg_attribute thisatt = TupleDescAttr(tupdesc, attnum);