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# LIBICONV_CHECK_CONFIG ([DEFAULT-ACTION])

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

#

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

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

# If not supplied, DEFAULT-ACTION is no.

#

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

# found, and sets @ICONV_LDFLAGS@ and @ICONV_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([LIBICONV_TRY_LINK],

[

found_iconv=$1

AC_LINK_IFELSE([AC_LANG_PROGRAM([[

#include <stdlib.h>

#include <iconv.h>

]], [[

    iconv_t cd = iconv_open("","");

    iconv(cd, NULL, NULL, NULL, NULL);

    iconv_close(cd);

]])],[found_iconv="yes"],[])

])dnl

​

AC_DEFUN([LIBICONV_CHECK_CONFIG],

[

    AC_ARG_WITH([iconv],[

If you want to specify iconv installation directories:

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

        [

            if test "$withval" = "yes"; then

                ICONV_CFLAGS="-I/usr/include"

                ICONV_LDFLAGS="-L/usr/lib"

                _iconv_dir_set=$withval

            elif test "$withval" != "no"; then

                _iconv_dir_lib="$withval/lib"

                ICONV_CFLAGS="-I$withval/include"

                ICONV_LDFLAGS="-L$_iconv_dir_lib"

                _iconv_dir_set="yes"

            fi

        ]

    )

​

    AC_ARG_WITH([iconv-include],

        AS_HELP_STRING([--with-iconv-include@<:@=DIR@:>@],

            [use iconv include headers from given path.]

        ),

        [

            ICONV_CFLAGS="-I$withval"

            _iconv_dir_set="yes"

        ]

    )

​

    AC_ARG_WITH([iconv-lib],

        AS_HELP_STRING([--with-iconv-lib@<:@=DIR@:>@],

            [use iconv libraries from given path.]

        ),

        [

            ICONV_LDFLAGS="-L$withval"

            _iconv_dir_lib="-L$withval"

            _iconv_dir_set="yes"

        ]

    )

​

    AC_CHECK_HEADER([iconv.h],[found_iconv=yes])

    AC_MSG_CHECKING(for ICONV support)

    if test -n "$_iconv_dir_set" -o "x$found_iconv" = xyes; then

        found_iconv="yes"

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

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

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

        found_iconv="yes"

    else

        found_iconv="no"

        AC_MSG_RESULT(no)

    fi

​

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

        am_save_CFLAGS="$CFLAGS"

        am_save_LDFLAGS="$LDFLAGS"

        am_save_LIBS="$LIBS"

​

        CFLAGS="$CFLAGS $ICONV_CFLAGS"

        LDFLAGS="$LDFLAGS $ICONV_LDFLAGS"

​

        LIBICONV_TRY_LINK([no])

​