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# LIBEVENT_CHECK_CONFIG ([DEFAULT-ACTION])

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

#

# Checks for libevent.  DEFAULT-ACTION is the string yes or no to

# specify whether to default to --with-libevent or --without-libevent.

# If not supplied, DEFAULT-ACTION is no.

#

# This macro #defines HAVE_LIBEVENT if a required header files is

# found, and sets @LIBEVENT_LDFLAGS@ and @LIBEVENT_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([LIBEVENT_TRY_LINK],

[

AC_TRY_LINK(

[

#include <stdlib.h>

#include <event.h>

],

[

    event_init();

],

found_libevent="yes")

])dnl

​

AC_DEFUN([LIBEVENT_CHECK_CONFIG],

[

    AC_ARG_WITH([libevent],[

If you want to specify libevent installation directories:

AC_HELP_STRING([--with-libevent@<:@=DIR@:>@], [use libevent from given base install directory (DIR), default is to search through a number of common places for the libevent files.])],

        [

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

                if test -f /usr/local/include/event.h; then withval=/usr/local; else withval=/usr; fi

            fi

​

            LIBEVENT_CFLAGS="-I$withval/include"

            LIBEVENT_LDFLAGS="-L$withval/lib"

            _libevent_dir_set="yes"

        ]

    )

​

    AC_ARG_WITH([libevent-include],

        AC_HELP_STRING([--with-libevent-include@<:@=DIR@:>@],

            [use libevent include headers from given path.]

        ),

        [

            LIBEVENT_CFLAGS="-I$withval"

            _libevent_dir_set="yes"

        ]

    )

​

    AC_ARG_WITH([libevent-lib],

        AC_HELP_STRING([--with-libevent-lib@<:@=DIR@:>@],

            [use libevent libraries from given path.]

        ),

        [

            LIBEVENT_LDFLAGS="-L$withval"

            _libevent_dir_set="yes"

        ]

    )

​

    AC_MSG_CHECKING(for libevent support)

​

    LIBEVENT_LIBS="-levent"

​

    if test -n "$_libevent_dir_set" -o -f /usr/include/event.h; then

        found_libevent="yes"

    elif test -f /usr/local/include/event.h; then

        LIBEVENT_CFLAGS="-I/usr/local/include"

        LIBEVENT_LDFLAGS="-L/usr/local/lib"

        found_libevent="yes"

    else

        found_libevent="no"

        AC_MSG_RESULT(no)

    fi

​

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

        am_save_CFLAGS="$CFLAGS"

        am_save_LDFLAGS="$LDFLAGS"

        am_save_LIBS="$LIBS"

​

        CFLAGS="$CFLAGS $LIBEVENT_CFLAGS"

        LDFLAGS="$LDFLAGS $LIBEVENT_LDFLAGS"

        LIBS="$LIBS $LIBEVENT_LIBS"

​

        found_libevent="no"

        LIBEVENT_TRY_LINK([no])

​