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From 300b460970f538ab515835f14650785e88808a8f Mon Sep 17 00:00:00 2001
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From: Sam James <sam@gentoo.org>
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Date: Fri, 4 Nov 2022 04:04:46 +0000
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Subject: acinclude.m4: fix -Wimplicit-function-declaration
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-Wimplicit-function-declaration will become an error by default
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in Clang 16.
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Fixes errors like:
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```
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error: call to undeclared library function 'exit' with type 'void (int) __attribute__((noreturn))'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
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```
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Signed-off-by: Sam James <sam@gentoo.org>
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DJ: Added pre-configure'd configure
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diff --git a/acinclude.m4 b/acinclude.m4
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index df8abe148..71e22c8d4 100644
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--- a/acinclude.m4
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+++ b/acinclude.m4
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@@ -471,6 +471,7 @@ AC_DEFUN([SANE_CHECK_IPV6],
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if test "$ipv6" != "no" ; then
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#define INET6
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+ #include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h> ]], [[
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/* AF_INET6 available check */
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@@ -492,6 +493,7 @@ AC_DEFUN([SANE_CHECK_IPV6],
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AC_MSG_CHECKING([whether struct sockaddr_storage has an ss_family member])
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#define INET6
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+ #include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h> ]], [[
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/* test if the ss_family member exists in struct sockaddr_storage */
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@@ -504,6 +506,7 @@ AC_DEFUN([SANE_CHECK_IPV6],
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], [
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#define INET6
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+ #include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h> ]], [[
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/* test if the __ss_family member exists in struct sockaddr_storage */
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diff -rup a/configure b/configure
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--- a/configure 2023-02-05 21:12:47.000000000 -0500
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+++ b/configure 2023-02-20 21:21:46.496776406 -0500
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@@ -25824,6 +25824,7 @@ fi
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/* end confdefs.h. */
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#define INET6
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+ #include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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int
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@@ -25866,6 +25867,7 @@ $as_echo_n "checking whether struct sock
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/* end confdefs.h. */
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#define INET6
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+ #include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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int
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@@ -25895,6 +25897,7 @@ else
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/* end confdefs.h. */
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#define INET6
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+ #include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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int
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