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# ARES_CHECK_CONFIG ([DEFAULT-ACTION])

# ----------------------------------------------------------

#

# Checks for c-ares.

#

# This macro #defines HAVE_ARES_H if required header files are

# found, and sets @ARES_LDFLAGS@ and @ARES_CFLAGS@ to the necessary

# values.

#

# This macro is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

​

AC_DEFUN([ARES_TRY_LINK],

[

found_ares=$1

AC_LINK_IFELSE([AC_LANG_PROGRAM([[

#include <ares.h>

#include "string.h"

]], [[

    struct ares_channeldata     *channel;

    struct ares_addrinfo_hints  hints;

​

    ares_library_init(ARES_LIB_INIT_ALL);

    ares_getaddrinfo(channel, "localhost", NULL, &hints, NULL, NULL);

]])],[found_ares="yes"],[])

])dnl

​

AC_DEFUN([ARES_CHECK_CONFIG],

[

    want_ares="no"

    AC_ARG_WITH([ares],[

If you want to use c-ares library:

AS_HELP_STRING([--with-ares@<:@=ARG@:>@], [use c-ares library @<:@default=no@:>@,])],

        [

            if test "x$withval" = "xyes"; then

                want_ares="yes"

            fi

        ]

    )

​

    AC_ARG_WITH([ares-include],

        AS_HELP_STRING([--with-ares-include=DIR],

            [use c-ares include headers from given path.]

        ),

        [

            ARES_CFLAGS="-I$withval"

            _ares_dir_set="yes"

            want_ares="yes"

        ]

    )

​

    AC_ARG_WITH([ares-lib],

        AS_HELP_STRING([--with-ares-lib=DIR],

            [use c-ares libraries from given path.]

        ),

        [

            ARES_LDFLAGS="-L$withval"

            _ares_dir_set="yes"

            want_ares="yes"

        ]

    )

​