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annotate m4/iconv.m4 @ 4533:dde0ece94ba0

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Normalize leading white space and remove trailing white space.
author Paul Eggert <eggert@cs.ucla.edu>
date Wed, 13 Aug 2003 06:48:58 +0000
parents 7c1a6b73f48e
children 3358eb550c86
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1 # iconv.m4 serial AM4 (gettext-0.11.3)
7c1a6b73f48e An autoconf macro for its associated module.
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2 dnl Copyright (C) 2000-2002 Free Software Foundation, Inc.
7c1a6b73f48e An autoconf macro for its associated module.
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3 dnl This file is free software, distributed under the terms of the GNU
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
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4 dnl General Public License. As a special exception to the GNU General
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
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5 dnl Public License, this file may be distributed as part of a program
7c1a6b73f48e An autoconf macro for its associated module.
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6 dnl that contains a configuration script generated by Autoconf, under
7c1a6b73f48e An autoconf macro for its associated module.
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7 dnl the same distribution terms as the rest of that program.
7c1a6b73f48e An autoconf macro for its associated module.
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8
7c1a6b73f48e An autoconf macro for its associated module.
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9 dnl From Bruno Haible.
7c1a6b73f48e An autoconf macro for its associated module.
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10
7c1a6b73f48e An autoconf macro for its associated module.
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11 AC_DEFUN([AM_ICONV_LINKFLAGS_BODY],
7c1a6b73f48e An autoconf macro for its associated module.
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12 [
7c1a6b73f48e An autoconf macro for its associated module.
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13 dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
7c1a6b73f48e An autoconf macro for its associated module.
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14 AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
7c1a6b73f48e An autoconf macro for its associated module.
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15 AC_REQUIRE([AC_LIB_RPATH])
7c1a6b73f48e An autoconf macro for its associated module.
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16
7c1a6b73f48e An autoconf macro for its associated module.
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17 dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
7c1a6b73f48e An autoconf macro for its associated module.
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18 dnl accordingly.
7c1a6b73f48e An autoconf macro for its associated module.
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19 AC_LIB_LINKFLAGS_BODY([iconv])
7c1a6b73f48e An autoconf macro for its associated module.
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20 ])
7c1a6b73f48e An autoconf macro for its associated module.
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21
7c1a6b73f48e An autoconf macro for its associated module.
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22 AC_DEFUN([AM_ICONV_LINK],
7c1a6b73f48e An autoconf macro for its associated module.
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23 [
7c1a6b73f48e An autoconf macro for its associated module.
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24 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
7c1a6b73f48e An autoconf macro for its associated module.
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25 dnl those with the standalone portable GNU libiconv installed).
7c1a6b73f48e An autoconf macro for its associated module.
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26
7c1a6b73f48e An autoconf macro for its associated module.
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27 dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
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28 dnl accordingly.
7c1a6b73f48e An autoconf macro for its associated module.
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29 AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
7c1a6b73f48e An autoconf macro for its associated module.
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30
7c1a6b73f48e An autoconf macro for its associated module.
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31 dnl Add $INCICONV to CPPFLAGS before performing the following checks,
7c1a6b73f48e An autoconf macro for its associated module.
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32 dnl because if the user has installed libiconv and not disabled its use
7c1a6b73f48e An autoconf macro for its associated module.
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33 dnl via --without-libiconv-prefix, he wants to use it. The first
7c1a6b73f48e An autoconf macro for its associated module.
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34 dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed.
7c1a6b73f48e An autoconf macro for its associated module.
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35 am_save_CPPFLAGS="$CPPFLAGS"
7c1a6b73f48e An autoconf macro for its associated module.
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36 AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
7c1a6b73f48e An autoconf macro for its associated module.
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37
7c1a6b73f48e An autoconf macro for its associated module.
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38 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
7c1a6b73f48e An autoconf macro for its associated module.
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39 am_cv_func_iconv="no, consider installing GNU libiconv"
7c1a6b73f48e An autoconf macro for its associated module.
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40 am_cv_lib_iconv=no
7c1a6b73f48e An autoconf macro for its associated module.
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41 AC_TRY_LINK([#include <stdlib.h>
7c1a6b73f48e An autoconf macro for its associated module.
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42 #include <iconv.h>],
7c1a6b73f48e An autoconf macro for its associated module.
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43 [iconv_t cd = iconv_open("","");
7c1a6b73f48e An autoconf macro for its associated module.
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44 iconv(cd,NULL,NULL,NULL,NULL);
7c1a6b73f48e An autoconf macro for its associated module.
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45 iconv_close(cd);],
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
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46 am_cv_func_iconv=yes)
7c1a6b73f48e An autoconf macro for its associated module.
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47 if test "$am_cv_func_iconv" != yes; then
7c1a6b73f48e An autoconf macro for its associated module.
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48 am_save_LIBS="$LIBS"
7c1a6b73f48e An autoconf macro for its associated module.
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49 LIBS="$LIBS $LIBICONV"
7c1a6b73f48e An autoconf macro for its associated module.
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50 AC_TRY_LINK([#include <stdlib.h>
7c1a6b73f48e An autoconf macro for its associated module.
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51 #include <iconv.h>],
4533
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52 [iconv_t cd = iconv_open("","");
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53 iconv(cd,NULL,NULL,NULL,NULL);
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54 iconv_close(cd);],
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55 am_cv_lib_iconv=yes
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56 am_cv_func_iconv=yes)
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7c1a6b73f48e An autoconf macro for its associated module.
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57 LIBS="$am_save_LIBS"
7c1a6b73f48e An autoconf macro for its associated module.
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58 fi
7c1a6b73f48e An autoconf macro for its associated module.
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59 ])
7c1a6b73f48e An autoconf macro for its associated module.
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60 if test "$am_cv_func_iconv" = yes; then
7c1a6b73f48e An autoconf macro for its associated module.
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61 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
7c1a6b73f48e An autoconf macro for its associated module.
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62 fi
7c1a6b73f48e An autoconf macro for its associated module.
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63 if test "$am_cv_lib_iconv" = yes; then
7c1a6b73f48e An autoconf macro for its associated module.
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64 AC_MSG_CHECKING([how to link with libiconv])
7c1a6b73f48e An autoconf macro for its associated module.
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65 AC_MSG_RESULT([$LIBICONV])
7c1a6b73f48e An autoconf macro for its associated module.
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66 else
7c1a6b73f48e An autoconf macro for its associated module.
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67 dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV
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68 dnl either.
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69 CPPFLAGS="$am_save_CPPFLAGS"
7c1a6b73f48e An autoconf macro for its associated module.
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70 LIBICONV=
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71 LTLIBICONV=
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72 fi
7c1a6b73f48e An autoconf macro for its associated module.
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73 AC_SUBST(LIBICONV)
7c1a6b73f48e An autoconf macro for its associated module.
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74 AC_SUBST(LTLIBICONV)
7c1a6b73f48e An autoconf macro for its associated module.
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75 ])
7c1a6b73f48e An autoconf macro for its associated module.
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76
7c1a6b73f48e An autoconf macro for its associated module.
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77 AC_DEFUN([AM_ICONV],
7c1a6b73f48e An autoconf macro for its associated module.
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78 [
7c1a6b73f48e An autoconf macro for its associated module.
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79 AM_ICONV_LINK
7c1a6b73f48e An autoconf macro for its associated module.
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80 if test "$am_cv_func_iconv" = yes; then
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81 AC_MSG_CHECKING([for iconv declaration])
7c1a6b73f48e An autoconf macro for its associated module.
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82 AC_CACHE_VAL(am_cv_proto_iconv, [
7c1a6b73f48e An autoconf macro for its associated module.
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83 AC_TRY_COMPILE([
7c1a6b73f48e An autoconf macro for its associated module.
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84 #include <stdlib.h>
7c1a6b73f48e An autoconf macro for its associated module.
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85 #include <iconv.h>
7c1a6b73f48e An autoconf macro for its associated module.
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86 extern
7c1a6b73f48e An autoconf macro for its associated module.
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87 #ifdef __cplusplus
7c1a6b73f48e An autoconf macro for its associated module.
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88 "C"
7c1a6b73f48e An autoconf macro for its associated module.
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89 #endif
7c1a6b73f48e An autoconf macro for its associated module.
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90 #if defined(__STDC__) || defined(__cplusplus)
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91 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
7c1a6b73f48e An autoconf macro for its associated module.
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92 #else
7c1a6b73f48e An autoconf macro for its associated module.
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93 size_t iconv();
7c1a6b73f48e An autoconf macro for its associated module.
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94 #endif
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95 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
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96 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
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97 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
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98 AC_MSG_RESULT([$]{ac_t:-
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99 }[$]am_cv_proto_iconv)
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100 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
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101 [Define as const if the declaration of iconv() needs const.])
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102 fi
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103 ])