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avoid incomplete type issue

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src/iodined.c: In function ‘read_dns’:
src/iodined.c:2062:34: error: invalid application of ‘sizeof’ to incomplete type ‘struct in6_pktinfo’
  char control[CMSG_SPACE(sizeof (struct in6_pktinfo))];
                                  ^
This commit is contained in:
Barak A. Pearlmutter 2016-12-28 12:01:30 +01:00
parent 5183561457
commit 29b7110bc6
1 changed files with 4 additions and 0 deletions
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4
configure.ac
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@ -56,6 +56,10 @@ AC_PROG_CC
AC_PROG_CC_STDC
AS_IF([test "x${ac_cv_prog_cc_stdc}" = xno],
[AC_MSG_WARN([Unable to engage Standard C (C99) option])],)
# This is to avoid
# error: invalid application of ‘sizeof’ to incomplete type ‘struct in6_pktinfo’
# whose definition is guarded by _GNU_SOURCE
AC_USE_SYSTEM_EXTENSIONS
AX_CFLAGS_WARN_ALL
AC_PROG_INSTALL