| 1 |
# iconv.m4 serial AM6 (gettext-0.17) |
| 2 |
dnl Copyright (C) 2000-2002, 2007 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 |
dnl From Bruno Haible. |
| 8 |
|
| 9 |
AC_DEFUN([AM_ICONV_LINKFLAGS_BODY], |
| 10 |
[ |
| 11 |
dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. |
| 12 |
AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) |
| 13 |
AC_REQUIRE([AC_LIB_RPATH]) |
| 14 |
|
| 15 |
dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV |
| 16 |
dnl accordingly. |
| 17 |
AC_LIB_LINKFLAGS_BODY([iconv]) |
| 18 |
]) |
| 19 |
|
| 20 |
AC_DEFUN([AM_ICONV_LINK], |
| 21 |
[ |
| 22 |
dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and |
| 23 |
dnl those with the standalone portable GNU libiconv installed). |
| 24 |
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles |
| 25 |
|
| 26 |
dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV |
| 27 |
dnl accordingly. |
| 28 |
AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) |
| 29 |
|
| 30 |
dnl Add $INCICONV to CPPFLAGS before performing the following checks, |
| 31 |
dnl because if the user has installed libiconv and not disabled its use |
| 32 |
dnl via --without-libiconv-prefix, he wants to use it. The first |
| 33 |
dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed. |
| 34 |
am_save_CPPFLAGS="$CPPFLAGS" |
| 35 |
AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV]) |
| 36 |
|
| 37 |
AC_CACHE_CHECK([for iconv], am_cv_func_iconv, [ |
| 38 |
am_cv_func_iconv="no, consider installing GNU libiconv" |
| 39 |
am_cv_lib_iconv=no |
| 40 |
AC_TRY_LINK([#include <stdlib.h> |
| 41 |
#include <iconv.h>], |
| 42 |
[iconv_t cd = iconv_open("",""); |
| 43 |
iconv(cd,NULL,NULL,NULL,NULL); |
| 44 |
iconv_close(cd);], |
| 45 |
am_cv_func_iconv=yes) |
| 46 |
if test "$am_cv_func_iconv" != yes; then |
| 47 |
am_save_LIBS="$LIBS" |
| 48 |
LIBS="$LIBS $LIBICONV" |
| 49 |
AC_TRY_LINK([#include <stdlib.h> |
| 50 |
#include <iconv.h>], |
| 51 |
[iconv_t cd = iconv_open("",""); |
| 52 |
iconv(cd,NULL,NULL,NULL,NULL); |
| 53 |
iconv_close(cd);], |
| 54 |
am_cv_lib_iconv=yes |
| 55 |
am_cv_func_iconv=yes) |
| 56 |
LIBS="$am_save_LIBS" |
| 57 |
fi |
| 58 |
]) |
| 59 |
if test "$am_cv_func_iconv" = yes; then |
| 60 |
AC_CACHE_CHECK([for working iconv], am_cv_func_iconv_works, [ |
| 61 |
dnl This tests against bugs in AIX 5.1 and HP-UX 11.11. |
| 62 |
am_save_LIBS="$LIBS" |
| 63 |
if test $am_cv_lib_iconv = yes; then |
| 64 |
LIBS="$LIBS $LIBICONV" |
| 65 |
fi |
| 66 |
AC_TRY_RUN([ |
| 67 |
#include <iconv.h> |
| 68 |
#include <string.h> |
| 69 |
int main () |
| 70 |
{ |
| 71 |
/* Test against AIX 5.1 bug: Failures are not distinguishable from successful |
| 72 |
returns. */ |
| 73 |
{ |
| 74 |
iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8"); |
| 75 |
if (cd_utf8_to_88591 != (iconv_t)(-1)) |
| 76 |
{ |
| 77 |
static const char input[] = "\342\202\254"; /* EURO SIGN */ |
| 78 |
char buf[10]; |
| 79 |
const char *inptr = input; |
| 80 |
size_t inbytesleft = strlen (input); |
| 81 |
char *outptr = buf; |
| 82 |
size_t outbytesleft = sizeof (buf); |
| 83 |
size_t res = iconv (cd_utf8_to_88591, |
| 84 |
(char **) &inptr, &inbytesleft, |
| 85 |
&outptr, &outbytesleft); |
| 86 |
if (res == 0) |
| 87 |
return 1; |
| 88 |
} |
| 89 |
} |
| 90 |
#if 0 /* This bug could be worked around by the caller. */ |
| 91 |
/* Test against HP-UX 11.11 bug: Positive return value instead of 0. */ |
| 92 |
{ |
| 93 |
iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591"); |
| 94 |
if (cd_88591_to_utf8 != (iconv_t)(-1)) |
| 95 |
{ |
| 96 |
static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337"; |
| 97 |
char buf[50]; |
| 98 |
const char *inptr = input; |
| 99 |
size_t inbytesleft = strlen (input); |
| 100 |
char *outptr = buf; |
| 101 |
size_t outbytesleft = sizeof (buf); |
| 102 |
size_t res = iconv (cd_88591_to_utf8, |
| 103 |
(char **) &inptr, &inbytesleft, |
| 104 |
&outptr, &outbytesleft); |
| 105 |
if ((int)res > 0) |
| 106 |
return 1; |
| 107 |
} |
| 108 |
} |
| 109 |
#endif |
| 110 |
/* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is |
| 111 |
provided. */ |
| 112 |
if (/* Try standardized names. */ |
| 113 |
iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1) |
| 114 |
/* Try IRIX, OSF/1 names. */ |
| 115 |
&& iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1) |
| 116 |
/* Try AIX names. */ |
| 117 |
&& iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1) |
| 118 |
/* Try HP-UX names. */ |
| 119 |
&& iconv_open ("utf8", "eucJP") == (iconv_t)(-1)) |
| 120 |
return 1; |
| 121 |
return 0; |
| 122 |
}], [am_cv_func_iconv_works=yes], [am_cv_func_iconv_works=no], |
| 123 |
[case "$host_os" in |
| 124 |
aix* | hpux*) am_cv_func_iconv_works="guessing no" ;; |
| 125 |
*) am_cv_func_iconv_works="guessing yes" ;; |
| 126 |
esac]) |
| 127 |
LIBS="$am_save_LIBS" |
| 128 |
]) |
| 129 |
case "$am_cv_func_iconv_works" in |
| 130 |
*no) am_func_iconv=no am_cv_lib_iconv=no ;; |
| 131 |
*) am_func_iconv=yes ;; |
| 132 |
esac |
| 133 |
else |
| 134 |
am_func_iconv=no am_cv_lib_iconv=no |
| 135 |
fi |
| 136 |
if test "$am_func_iconv" = yes; then |
| 137 |
AC_DEFINE(HAVE_ICONV, 1, |
| 138 |
[Define if you have the iconv() function and it works.]) |
| 139 |
fi |
| 140 |
if test "$am_cv_lib_iconv" = yes; then |
| 141 |
AC_MSG_CHECKING([how to link with libiconv]) |
| 142 |
AC_MSG_RESULT([$LIBICONV]) |
| 143 |
else |
| 144 |
dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV |
| 145 |
dnl either. |
| 146 |
CPPFLAGS="$am_save_CPPFLAGS" |
| 147 |
LIBICONV= |
| 148 |
LTLIBICONV= |
| 149 |
fi |
| 150 |
AC_SUBST(LIBICONV) |
| 151 |
AC_SUBST(LTLIBICONV) |
| 152 |
]) |
| 153 |
|
| 154 |
AC_DEFUN([AM_ICONV], |
| 155 |
[ |
| 156 |
AM_ICONV_LINK |
| 157 |
if test "$am_cv_func_iconv" = yes; then |
| 158 |
AC_MSG_CHECKING([for iconv declaration]) |
| 159 |
AC_CACHE_VAL(am_cv_proto_iconv, [ |
| 160 |
AC_TRY_COMPILE([ |
| 161 |
#include <stdlib.h> |
| 162 |
#include <iconv.h> |
| 163 |
extern |
| 164 |
#ifdef __cplusplus |
| 165 |
"C" |
| 166 |
#endif |
| 167 |
#if defined(__STDC__) || defined(__cplusplus) |
| 168 |
size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); |
| 169 |
#else |
| 170 |
size_t iconv(); |
| 171 |
#endif |
| 172 |
], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const") |
| 173 |
am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) |
| 174 |
am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` |
| 175 |
AC_MSG_RESULT([$]{ac_t:- |
| 176 |
}[$]am_cv_proto_iconv) |
| 177 |
AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1, |
| 178 |
[Define as const if the declaration of iconv() needs const.]) |
| 179 |
fi |
| 180 |
]) |
Parent Directory
| 
Revision Log