File 0953-Add-missing-include-statements-in-in6addr-tests.patch of Package erlang

From 388622e9b626039c1e403b4952c2c905af364a96 Mon Sep 17 00:00:00 2001
From: Tyler Stromberg <tylers@mac.com>
Date: Thu, 9 Jul 2020 14:48:17 -0700
Subject: [PATCH] Add missing include statements in in6addr tests

Compilation is failing on macOS Big Sur due to in6addr_any and in6addr_loopback
being redeclared. The underlying issue is that the tests for these are failing
due to missing include statements:

conftest.c:197:1: error: implicitly declaring library function 'printf'
with type 'int (const char *, ...)' [-Werror,-Wimplicit-function-declaration]
printf("%d", in6addr_any.s6_addr[16]);
^
conftest.c:197:1: note: include the header <stdio.h> or explicitly provide
a declaration for 'printf'

ERL-1306
---
 erts/configure.in | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/erts/configure.in b/erts/configure.in
index 21e1437adb..c0dbdedd79 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -2240,6 +2240,7 @@ AC_CACHE_CHECK(
 		#include <sys/types.h>
 		#include <sys/socket.h>
 		#include <netinet/in.h>
+		#include <stdio.h>
 	    ]],
 	    [[printf("%d", in6addr_any.s6_addr[16]);]]
 	)],
@@ -2263,6 +2264,7 @@ AC_CACHE_CHECK(
 		#include <sys/types.h>
 		#include <sys/socket.h>
 		#include <netinet/in.h>
+		#include <stdio.h>
 	    ]],
 	    [[printf("%d", in6addr_loopback.s6_addr[16]);]]
 	)],
-- 
2.26.2