From 9b4070944578336506cd0a76de6f733c72d0ca74 Mon Sep 17 00:00:00 2001
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From: "Yann E. MORIN" <yann.morin.1998@free.fr>
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Date: Sat, 13 Oct 2018 11:11:15 +0200
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Subject: [PATCH] configure: fix detection of re-entrant resolver functions
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Fixes https://issues.asterisk.org/jira/browse/ASTERISK-21795
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uClibc does not provide res_nsearch:
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asterisk-16.0.0/main/dns.c:506: undefined reference to `res_nsearch'
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Patch coded by Yann E. MORIN:
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http://lists.busybox.net/pipermail/buildroot/2018-October/232630.html
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Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
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---
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configure.ac | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/configure.ac b/configure.ac
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index dd0c8edd13..ee1ca9ceb6 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -1388,7 +1388,11 @@ AC_LINK_IFELSE(
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#include <arpa/nameser.h>
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#endif
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#include <resolv.h>],
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- [int foo = res_ninit(NULL);])],
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+ [
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+ int foo;
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+ foo = res_ninit(NULL);
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+ foo = res_nsearch(NULL, NULL, 0, 0, NULL, 0);
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+ ])],
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AC_MSG_RESULT(yes)
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AC_DEFINE([HAVE_RES_NINIT], 1, [Define to 1 if your system has the re-entrant resolver functions.])
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AC_SEARCH_LIBS(res_9_ndestroy, resolv)
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--
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2.19.1
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