# iconv_open.m4 serial 14

dnl Copyright (C) 2007-2018 Free Software Foundation, Inc.

dnl This file is free software; the Free Software Foundation

dnl gives unlimited permission to copy and/or distribute it,

dnl with or without modifications, as long as this notice is preserved.

AC_DEFUN([gl_FUNC_ICONV_OPEN],

[

  AC_REQUIRE([AM_ICONV])

  AC_REQUIRE([AC_CANONICAL_HOST])

  AC_REQUIRE([gl_ICONV_H_DEFAULTS])

  if test "$am_cv_func_iconv" = yes; then

    dnl Provide the <iconv.h> override, for the sake of the C++ aliases.

    gl_REPLACE_ICONV_H

    dnl Test whether iconv_open accepts standardized encoding names.

    dnl We know that GNU libiconv and GNU libc do.

    AC_EGREP_CPP([gnu_iconv], [

      #include <iconv.h>

      #if defined _LIBICONV_VERSION || (defined __GLIBC__ && !defined __UCLIBC__)

       gnu_iconv

      #endif

      ], [gl_func_iconv_gnu=yes], [gl_func_iconv_gnu=no])

    if test $gl_func_iconv_gnu = no; then

      iconv_flavor=

      case "$host_os" in

        aix*)     iconv_flavor=ICONV_FLAVOR_AIX ;;

        irix*)    iconv_flavor=ICONV_FLAVOR_IRIX ;;

        hpux*)    iconv_flavor=ICONV_FLAVOR_HPUX ;;

        osf*)     iconv_flavor=ICONV_FLAVOR_OSF ;;

        solaris*) iconv_flavor=ICONV_FLAVOR_SOLARIS ;;

      esac

      if test -n "$iconv_flavor"; then

        AC_DEFINE_UNQUOTED([ICONV_FLAVOR], [$iconv_flavor],

          [Define to a symbolic name denoting the flavor of iconv_open()

           implementation.])

        gl_REPLACE_ICONV_OPEN

      fi

    fi

    m4_ifdef([gl_FUNC_ICONV_OPEN_UTF_SUPPORT], [

      gl_FUNC_ICONV_OPEN_UTF_SUPPORT

      if test $gl_cv_func_iconv_supports_utf = no; then

        REPLACE_ICONV_UTF=1

        AC_DEFINE([REPLACE_ICONV_UTF], [1],

          [Define if the iconv() functions are enhanced to handle the UTF-{16,32}{BE,LE} encodings.])

        REPLACE_ICONV=1

        gl_REPLACE_ICONV_OPEN

      fi

    ])

  fi

])

AC_DEFUN([gl_REPLACE_ICONV_OPEN],

[

  gl_REPLACE_ICONV_H

  REPLACE_ICONV_OPEN=1

])