From 80370836f7563653390065b225ece4305aba3d57 Mon Sep 17 00:00:00 2001
From: Andrew Dunstan <andrew@dunslane.net>
Date: Fri, 20 Mar 2020 13:55:15 -0400
Subject: [PATCH] Turn off deprecated bison warnings under MSVC

These are disabled by the configure code, so this is just fixing an
inconsistency in the MSVC code.

Backpatch to all live branches.
---
 src/tools/msvc/pgbison.pl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/tools/msvc/pgbison.pl b/src/tools/msvc/pgbison.pl
index 7d0f784aa83..9eec12518ed 100644
--- a/src/tools/msvc/pgbison.pl
+++ b/src/tools/msvc/pgbison.pl
@@ -45,5 +45,7 @@ close($mf);
 my $basetarg = basename($output);
 my $headerflag = ($make =~ /^$basetarg:\s+BISONFLAGS\b.*-d/m ? '-d' : '');
 
-system("bison $headerflag $input -o $output");
+my $nodep = $bisonver ge '3.0' ? "-Wno-deprecated" : "";
+
+system("bison $nodep $headerflag $input -o $output");
 exit $? >> 8;