1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
https://github.com/radvd-project/radvd/commit/5acb1c64766dfaf37c9745632f99feecf11d1403
From 5acb1c64766dfaf37c9745632f99feecf11d1403 Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Fri, 3 Feb 2023 02:33:13 +0000
Subject: [PATCH] configure.ac: Fix -Wint-conversion warnings
These become fatal with Clang 15 and may lead to incorrect configure
test results.
```
-ignoreme: warning: incompatible pointer to integer conversion initializing 'int' with an expression of type 'uint16_t[8]' (aka 'unsigned short[8]') [-Wint-conversion]
+ignoreme: error: incompatible pointer to integer conversion initializing 'int' with an expression of type 'uint16_t[8]' (aka 'unsigned short[8]') [-Wint-conversion]
int u = in6_u.s6_addr16;
^ ~~~~~~~~~~~~~~~
```
Signed-off-by: Sam James <sam@gentoo.org>
--- a/configure.ac
+++ b/configure.ac
@@ -178,15 +178,19 @@ AC_HEADER_TIME
dnl Checks for typedefs, structures, and compiler characteristics.
AC_MSG_CHECKING(whether struct sockaddr_in6 has sin6_scope_id)
-AC_TRY_COMPILE([#include <sys/types.h>
-#include <netinet/in.h>], [static struct sockaddr_in6 ac_sin6; int ac_size =
-sizeof (ac_sin6.sin6_scope_id);], [AC_MSG_RESULT(yes); AC_DEFINE([HAVE_SIN6_SCOPE_ID],
+AC_TRY_COMPILE([#include <stdint.h>
+#include <sys/types.h>
+#include <netinet/in.h>], [
+static struct sockaddr_in6 ac_sin6;
+uint32_t ac_size = sizeof (ac_sin6.sin6_scope_id);
+], [AC_MSG_RESULT(yes); AC_DEFINE([HAVE_SIN6_SCOPE_ID],
1, [whether struct sockaddr_in6 has sin6_scope_id])],
AC_MSG_RESULT(no))
AC_MSG_CHECKING(whether struct in6_addr has u6_addrXX and defines s6_addrXX)
-AC_TRY_COMPILE([#include <netinet/in.h>], [static struct in6_addr in6_u;
-int u = in6_u.s6_addr16;], [AC_MSG_RESULT(yes); AC_DEFINE([HAVE_IN6_ADDR_S6_ADDR],
+AC_TRY_COMPILE([#include <stdint.h>
+#include <netinet/in.h>], [static struct in6_addr in6_u;
+uint16_t u = in6_u.s6_addr16[0];], [AC_MSG_RESULT(yes); AC_DEFINE([HAVE_IN6_ADDR_S6_ADDR],
1, [whether struct in6_addr has u6_addrXX and defines s6_addrXX])],
AC_MSG_RESULT(no))
|
