m4/iconv_open.m4

   1 # iconv_open.m4 serial 14
   2 dnl Copyright (C) 2007-2014 Free Software Foundation, Inc.
   3 dnl This file is free software; the Free Software Foundation
   4 dnl gives unlimited permission to copy and/or distribute it,
   5 dnl with or without modifications, as long as this notice is preserved.
   6
   7 AC_DEFUN([gl_FUNC_ICONV_OPEN],
   8 [
   9   AC_REQUIRE([AM_ICONV])
  10   AC_REQUIRE([AC_CANONICAL_HOST])
  11   AC_REQUIRE([gl_ICONV_H_DEFAULTS])
  12   if test "$am_cv_func_iconv" = yes; then
  13     dnl Provide the <iconv.h> override, for the sake of the C++ aliases.
  14     gl_REPLACE_ICONV_H
  15     dnl Test whether iconv_open accepts standardized encoding names.
  16     dnl We know that GNU libiconv and GNU libc do.
  17     AC_EGREP_CPP([gnu_iconv], [
  18       #include <iconv.h>
  19       #if defined _LIBICONV_VERSION || (defined __GLIBC__ && !defined __UCLIBC__)
  20        gnu_iconv
  21       #endif
  22       ], [gl_func_iconv_gnu=yes], [gl_func_iconv_gnu=no])
  23     if test $gl_func_iconv_gnu = no; then
  24       iconv_flavor=
  25       case "$host_os" in
  26         aix*)     iconv_flavor=ICONV_FLAVOR_AIX ;;
  27         irix*)    iconv_flavor=ICONV_FLAVOR_IRIX ;;
  28         hpux*)    iconv_flavor=ICONV_FLAVOR_HPUX ;;
  29         osf*)     iconv_flavor=ICONV_FLAVOR_OSF ;;
  30         solaris*) iconv_flavor=ICONV_FLAVOR_SOLARIS ;;
  31       esac
  32       if test -n "$iconv_flavor"; then
  33         AC_DEFINE_UNQUOTED([ICONV_FLAVOR], [$iconv_flavor],
  34           [Define to a symbolic name denoting the flavor of iconv_open()
  35            implementation.])
  36         gl_REPLACE_ICONV_OPEN
  37       fi
  38     fi
  39     m4_ifdef([gl_FUNC_ICONV_OPEN_UTF_SUPPORT], [
  40       gl_FUNC_ICONV_OPEN_UTF_SUPPORT
  41       if test $gl_cv_func_iconv_supports_utf = no; then
  42         REPLACE_ICONV_UTF=1
  43         AC_DEFINE([REPLACE_ICONV_UTF], [1],
  44           [Define if the iconv() functions are enhanced to handle the UTF-{16,32}{BE,LE} encodings.])
  45         REPLACE_ICONV=1
  46         gl_REPLACE_ICONV_OPEN
  47       fi
  48     ])
  49   fi
  50 ])
  51
  52 AC_DEFUN([gl_REPLACE_ICONV_OPEN],
  53 [
  54   gl_REPLACE_ICONV_H
  55   REPLACE_ICONV_OPEN=1
  56 ])