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Fix link_addr detection

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link_addr detection in configure always reports that
link_addr is missing because it uses link_addr(NULL, NULL) in
AC_LINK_IFELSE check with limited set of headers that doesn't
define NULL.

Fix by replacing 'NULL' with just '0'.
This commit is contained in:
Roman Bogorodskiy 2013-07-24 17:02:00 +04:00 committed by Martin Kletzander
parent b4a40dd92d
commit 7e1208297d
1 changed files with 1 additions and 1 deletions
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2
configure.ac
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@ -2401,7 +2401,7 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM(
#include <net/if_dl.h>
]],
[[
link_addr(NULL, NULL)]])],
link_addr(0, 0)]])],
[AC_DEFINE([HAVE_DECL_LINK_ADDR],
[1],
[whether link_addr is available])])