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# iconv_open.m4 serial 16
dnl Copyright (C) 2007-2023 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 ;;
openedition*) iconv_flavor=ICONV_FLAVOR_ZOS ;;
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
case "$gl_cv_func_iconv_supports_utf" in
*yes) ;;
*)
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
;;
esac
])
fi
])
AC_DEFUN([gl_REPLACE_ICONV_OPEN],
[
gl_REPLACE_ICONV_H
REPLACE_ICONV_OPEN=1
])
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