1# iconv_open.m4 serial 3 2dnl Copyright (C) 2007 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7AC_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 Test whether iconv_open accepts standardized encoding names. 14 dnl We know that GNU libiconv and GNU libc do. 15 AC_EGREP_CPP([gnu_iconv], [ 16 #include <iconv.h> 17 #if defined _LIBICONV_VERSION || defined __GLIBC__ 18 gnu_iconv 19 #endif 20 ], [gl_func_iconv_gnu=yes], [gl_func_iconv_gnu=no]) 21 if test $gl_func_iconv_gnu = no; then 22 iconv_flavor= 23 case "$host_os" in 24 aix*) iconv_flavor=ICONV_FLAVOR_AIX ;; 25 irix*) iconv_flavor=ICONV_FLAVOR_IRIX ;; 26 hpux*) iconv_flavor=ICONV_FLAVOR_HPUX ;; 27 osf*) iconv_flavor=ICONV_FLAVOR_OSF ;; 28 esac 29 if test -n "$iconv_flavor"; then 30 AC_DEFINE_UNQUOTED([ICONV_FLAVOR], [$iconv_flavor], 31 [Define to a symbolic name denoting the flavor of iconv_open() 32 implementation.]) 33 gl_REPLACE_ICONV_OPEN 34 fi 35 fi 36 fi 37]) 38 39AC_DEFUN([gl_REPLACE_ICONV_OPEN], 40[ 41 REPLACE_ICONV_OPEN=1 42 AC_LIBOBJ([iconv_open]) 43 ICONV_H='iconv.h' 44]) 45 46AC_DEFUN([gl_FUNC_ICONV_OPEN_UTF], 47[ 48 AC_REQUIRE([gl_FUNC_ICONV_OPEN]) 49 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles 50 AC_REQUIRE([gl_ICONV_H_DEFAULTS]) 51 if test "$am_cv_func_iconv" = yes; then 52 if test -n "$am_cv_proto_iconv_arg1"; then 53 ICONV_CONST="const" 54 else 55 ICONV_CONST= 56 fi 57 AC_SUBST([ICONV_CONST]) 58 AC_CACHE_CHECK([whether iconv supports conversion between UTF-8 and UTF-{16,32}{BE,LE}], 59 [gl_cv_func_iconv_supports_utf], 60 [ 61 save_LIBS="$LIBS" 62 LIBS="$LIBS $LIBICONV" 63 AC_TRY_RUN([ 64#include <iconv.h> 65#include <errno.h> 66#include <stdio.h> 67#include <stdlib.h> 68#include <string.h> 69#define ASSERT(expr) if (!(expr)) return 1; 70int main () 71{ 72 /* Test conversion from UTF-8 to UTF-16BE with no errors. */ 73 { 74 static const char input[] = 75 "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]"; 76 static const char expected[] = 77 "\000J\000a\000p\000a\000n\000e\000s\000e\000 \000(\145\345\147\054\212\236\000)\000 \000[\330\065\335\015\330\065\335\036\330\065\335\055\000]"; 78 iconv_t cd; 79 char buf[100]; 80 const char *inptr; 81 size_t inbytesleft; 82 char *outptr; 83 size_t outbytesleft; 84 size_t res; 85 cd = iconv_open ("UTF-16BE", "UTF-8"); 86 ASSERT (cd != (iconv_t)(-1)); 87 inptr = input; 88 inbytesleft = sizeof (input) - 1; 89 outptr = buf; 90 outbytesleft = sizeof (buf); 91 res = iconv (cd, 92 (ICONV_CONST char **) &inptr, &inbytesleft, 93 &outptr, &outbytesleft); 94 ASSERT (res == 0 && inbytesleft == 0); 95 ASSERT (outptr == buf + (sizeof (expected) - 1)); 96 ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); 97 ASSERT (iconv_close (cd) == 0); 98 } 99 /* Test conversion from UTF-8 to UTF-16LE with no errors. */ 100 { 101 static const char input[] = 102 "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]"; 103 static const char expected[] = 104 "J\000a\000p\000a\000n\000e\000s\000e\000 \000(\000\345\145\054\147\236\212)\000 \000[\000\065\330\015\335\065\330\036\335\065\330\055\335]\000"; 105 iconv_t cd; 106 char buf[100]; 107 const char *inptr; 108 size_t inbytesleft; 109 char *outptr; 110 size_t outbytesleft; 111 size_t res; 112 cd = iconv_open ("UTF-16LE", "UTF-8"); 113 ASSERT (cd != (iconv_t)(-1)); 114 inptr = input; 115 inbytesleft = sizeof (input) - 1; 116 outptr = buf; 117 outbytesleft = sizeof (buf); 118 res = iconv (cd, 119 (ICONV_CONST char **) &inptr, &inbytesleft, 120 &outptr, &outbytesleft); 121 ASSERT (res == 0 && inbytesleft == 0); 122 ASSERT (outptr == buf + (sizeof (expected) - 1)); 123 ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); 124 ASSERT (iconv_close (cd) == 0); 125 } 126 /* Test conversion from UTF-8 to UTF-32BE with no errors. */ 127 { 128 static const char input[] = 129 "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]"; 130 static const char expected[] = 131 "\000\000\000J\000\000\000a\000\000\000p\000\000\000a\000\000\000n\000\000\000e\000\000\000s\000\000\000e\000\000\000 \000\000\000(\000\000\145\345\000\000\147\054\000\000\212\236\000\000\000)\000\000\000 \000\000\000[\000\001\325\015\000\001\325\036\000\001\325\055\000\000\000]"; 132 iconv_t cd; 133 char buf[100]; 134 const char *inptr; 135 size_t inbytesleft; 136 char *outptr; 137 size_t outbytesleft; 138 size_t res; 139 cd = iconv_open ("UTF-32BE", "UTF-8"); 140 ASSERT (cd != (iconv_t)(-1)); 141 inptr = input; 142 inbytesleft = sizeof (input) - 1; 143 outptr = buf; 144 outbytesleft = sizeof (buf); 145 res = iconv (cd, 146 (ICONV_CONST char **) &inptr, &inbytesleft, 147 &outptr, &outbytesleft); 148 ASSERT (res == 0 && inbytesleft == 0); 149 ASSERT (outptr == buf + (sizeof (expected) - 1)); 150 ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); 151 ASSERT (iconv_close (cd) == 0); 152 } 153 /* Test conversion from UTF-8 to UTF-32LE with no errors. */ 154 { 155 static const char input[] = 156 "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]"; 157 static const char expected[] = 158 "J\000\000\000a\000\000\000p\000\000\000a\000\000\000n\000\000\000e\000\000\000s\000\000\000e\000\000\000 \000\000\000(\000\000\000\345\145\000\000\054\147\000\000\236\212\000\000)\000\000\000 \000\000\000[\000\000\000\015\325\001\000\036\325\001\000\055\325\001\000]\000\000\000"; 159 iconv_t cd; 160 char buf[100]; 161 const char *inptr; 162 size_t inbytesleft; 163 char *outptr; 164 size_t outbytesleft; 165 size_t res; 166 cd = iconv_open ("UTF-32LE", "UTF-8"); 167 ASSERT (cd != (iconv_t)(-1)); 168 inptr = input; 169 inbytesleft = sizeof (input) - 1; 170 outptr = buf; 171 outbytesleft = sizeof (buf); 172 res = iconv (cd, 173 (ICONV_CONST char **) &inptr, &inbytesleft, 174 &outptr, &outbytesleft); 175 ASSERT (res == 0 && inbytesleft == 0); 176 ASSERT (outptr == buf + (sizeof (expected) - 1)); 177 ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); 178 ASSERT (iconv_close (cd) == 0); 179 } 180 /* Test conversion from UTF-16BE to UTF-8 with no errors. 181 This test fails on NetBSD 3.0. */ 182 { 183 static const char input[] = 184 "\000J\000a\000p\000a\000n\000e\000s\000e\000 \000(\145\345\147\054\212\236\000)\000 \000[\330\065\335\015\330\065\335\036\330\065\335\055\000]"; 185 static const char expected[] = 186 "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]"; 187 iconv_t cd; 188 char buf[100]; 189 const char *inptr; 190 size_t inbytesleft; 191 char *outptr; 192 size_t outbytesleft; 193 size_t res; 194 cd = iconv_open ("UTF-8", "UTF-16BE"); 195 ASSERT (cd != (iconv_t)(-1)); 196 inptr = input; 197 inbytesleft = sizeof (input) - 1; 198 outptr = buf; 199 outbytesleft = sizeof (buf); 200 res = iconv (cd, 201 (ICONV_CONST char **) &inptr, &inbytesleft, 202 &outptr, &outbytesleft); 203 ASSERT (res == 0 && inbytesleft == 0); 204 ASSERT (outptr == buf + (sizeof (expected) - 1)); 205 ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); 206 ASSERT (iconv_close (cd) == 0); 207 } 208 return 0; 209}], [gl_cv_func_iconv_supports_utf=yes], [gl_cv_func_iconv_supports_utf=no], 210 [ 211 dnl We know that GNU libiconv, GNU libc, and Solaris >= 9 do. 212 dnl OSF/1 5.1 has these encodings, but inserts a BOM in the "to" 213 dnl direction. 214 gl_cv_func_iconv_supports_utf=no 215 if test $gl_func_iconv_gnu = yes; then 216 gl_cv_func_iconv_supports_utf=yes 217 else 218changequote(,)dnl 219 case "$host_os" in 220 solaris2.9 | solaris2.1[0-9]) gl_cv_func_iconv_supports_utf=yes ;; 221 esac 222changequote([,])dnl 223 fi 224 ]) 225 LIBS="$save_LIBS" 226 ]) 227 if test $gl_cv_func_iconv_supports_utf = no; then 228 REPLACE_ICONV_UTF=1 229 AC_DEFINE([REPLACE_ICONV_UTF], 1, 230 [Define if the iconv() functions are enhanced to handle the UTF-{16,32}{BE,LE} encodings.]) 231 REPLACE_ICONV=1 232 gl_REPLACE_ICONV_OPEN 233 AC_LIBOBJ([iconv]) 234 AC_LIBOBJ([iconv_close]) 235 fi 236 fi 237]) 238