1# iconv_open.m4 serial 7 2dnl Copyright (C) 2007-2010 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 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__ 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 fi 40]) 41 42AC_DEFUN([gl_REPLACE_ICONV_OPEN], 43[ 44 gl_REPLACE_ICONV_H 45 REPLACE_ICONV_OPEN=1 46 AC_LIBOBJ([iconv_open]) 47]) 48 49AC_DEFUN([gl_FUNC_ICONV_OPEN_UTF], 50[ 51 AC_REQUIRE([gl_FUNC_ICONV_OPEN]) 52 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles 53 AC_REQUIRE([gl_ICONV_H_DEFAULTS]) 54 if test "$am_cv_func_iconv" = yes; then 55 if test -n "$am_cv_proto_iconv_arg1"; then 56 ICONV_CONST="const" 57 else 58 ICONV_CONST= 59 fi 60 AC_SUBST([ICONV_CONST]) 61 AC_CACHE_CHECK([whether iconv supports conversion between UTF-8 and UTF-{16,32}{BE,LE}], 62 [gl_cv_func_iconv_supports_utf], 63 [ 64 save_LIBS="$LIBS" 65 LIBS="$LIBS $LIBICONV" 66 AC_TRY_RUN([ 67#include <iconv.h> 68#include <errno.h> 69#include <stdio.h> 70#include <stdlib.h> 71#include <string.h> 72#define ASSERT(expr) if (!(expr)) return 1; 73int main () 74{ 75 /* Test conversion from UTF-8 to UTF-16BE with no errors. */ 76 { 77 static const char input[] = 78 "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]"; 79 static const char expected[] = 80 "\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]"; 81 iconv_t cd; 82 char buf[100]; 83 const char *inptr; 84 size_t inbytesleft; 85 char *outptr; 86 size_t outbytesleft; 87 size_t res; 88 cd = iconv_open ("UTF-16BE", "UTF-8"); 89 ASSERT (cd != (iconv_t)(-1)); 90 inptr = input; 91 inbytesleft = sizeof (input) - 1; 92 outptr = buf; 93 outbytesleft = sizeof (buf); 94 res = iconv (cd, 95 (ICONV_CONST char **) &inptr, &inbytesleft, 96 &outptr, &outbytesleft); 97 ASSERT (res == 0 && inbytesleft == 0); 98 ASSERT (outptr == buf + (sizeof (expected) - 1)); 99 ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); 100 ASSERT (iconv_close (cd) == 0); 101 } 102 /* Test conversion from UTF-8 to UTF-16LE with no errors. */ 103 { 104 static const char input[] = 105 "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]"; 106 static const char expected[] = 107 "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"; 108 iconv_t cd; 109 char buf[100]; 110 const char *inptr; 111 size_t inbytesleft; 112 char *outptr; 113 size_t outbytesleft; 114 size_t res; 115 cd = iconv_open ("UTF-16LE", "UTF-8"); 116 ASSERT (cd != (iconv_t)(-1)); 117 inptr = input; 118 inbytesleft = sizeof (input) - 1; 119 outptr = buf; 120 outbytesleft = sizeof (buf); 121 res = iconv (cd, 122 (ICONV_CONST char **) &inptr, &inbytesleft, 123 &outptr, &outbytesleft); 124 ASSERT (res == 0 && inbytesleft == 0); 125 ASSERT (outptr == buf + (sizeof (expected) - 1)); 126 ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); 127 ASSERT (iconv_close (cd) == 0); 128 } 129 /* Test conversion from UTF-8 to UTF-32BE with no errors. */ 130 { 131 static const char input[] = 132 "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]"; 133 static const char expected[] = 134 "\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]"; 135 iconv_t cd; 136 char buf[100]; 137 const char *inptr; 138 size_t inbytesleft; 139 char *outptr; 140 size_t outbytesleft; 141 size_t res; 142 cd = iconv_open ("UTF-32BE", "UTF-8"); 143 ASSERT (cd != (iconv_t)(-1)); 144 inptr = input; 145 inbytesleft = sizeof (input) - 1; 146 outptr = buf; 147 outbytesleft = sizeof (buf); 148 res = iconv (cd, 149 (ICONV_CONST char **) &inptr, &inbytesleft, 150 &outptr, &outbytesleft); 151 ASSERT (res == 0 && inbytesleft == 0); 152 ASSERT (outptr == buf + (sizeof (expected) - 1)); 153 ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); 154 ASSERT (iconv_close (cd) == 0); 155 } 156 /* Test conversion from UTF-8 to UTF-32LE with no errors. */ 157 { 158 static const char input[] = 159 "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]"; 160 static const char expected[] = 161 "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"; 162 iconv_t cd; 163 char buf[100]; 164 const char *inptr; 165 size_t inbytesleft; 166 char *outptr; 167 size_t outbytesleft; 168 size_t res; 169 cd = iconv_open ("UTF-32LE", "UTF-8"); 170 ASSERT (cd != (iconv_t)(-1)); 171 inptr = input; 172 inbytesleft = sizeof (input) - 1; 173 outptr = buf; 174 outbytesleft = sizeof (buf); 175 res = iconv (cd, 176 (ICONV_CONST char **) &inptr, &inbytesleft, 177 &outptr, &outbytesleft); 178 ASSERT (res == 0 && inbytesleft == 0); 179 ASSERT (outptr == buf + (sizeof (expected) - 1)); 180 ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); 181 ASSERT (iconv_close (cd) == 0); 182 } 183 /* Test conversion from UTF-16BE to UTF-8 with no errors. 184 This test fails on NetBSD 3.0. */ 185 { 186 static const char input[] = 187 "\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]"; 188 static const char expected[] = 189 "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]"; 190 iconv_t cd; 191 char buf[100]; 192 const char *inptr; 193 size_t inbytesleft; 194 char *outptr; 195 size_t outbytesleft; 196 size_t res; 197 cd = iconv_open ("UTF-8", "UTF-16BE"); 198 ASSERT (cd != (iconv_t)(-1)); 199 inptr = input; 200 inbytesleft = sizeof (input) - 1; 201 outptr = buf; 202 outbytesleft = sizeof (buf); 203 res = iconv (cd, 204 (ICONV_CONST char **) &inptr, &inbytesleft, 205 &outptr, &outbytesleft); 206 ASSERT (res == 0 && inbytesleft == 0); 207 ASSERT (outptr == buf + (sizeof (expected) - 1)); 208 ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0); 209 ASSERT (iconv_close (cd) == 0); 210 } 211 return 0; 212}], [gl_cv_func_iconv_supports_utf=yes], [gl_cv_func_iconv_supports_utf=no], 213 [ 214 dnl We know that GNU libiconv, GNU libc, and Solaris >= 9 do. 215 dnl OSF/1 5.1 has these encodings, but inserts a BOM in the "to" 216 dnl direction. 217 gl_cv_func_iconv_supports_utf=no 218 if test $gl_func_iconv_gnu = yes; then 219 gl_cv_func_iconv_supports_utf=yes 220 else 221changequote(,)dnl 222 case "$host_os" in 223 solaris2.9 | solaris2.1[0-9]) gl_cv_func_iconv_supports_utf=yes ;; 224 esac 225changequote([,])dnl 226 fi 227 ]) 228 LIBS="$save_LIBS" 229 ]) 230 if test $gl_cv_func_iconv_supports_utf = no; then 231 REPLACE_ICONV_UTF=1 232 AC_DEFINE([REPLACE_ICONV_UTF], [1], 233 [Define if the iconv() functions are enhanced to handle the UTF-{16,32}{BE,LE} encodings.]) 234 REPLACE_ICONV=1 235 gl_REPLACE_ICONV_OPEN 236 AC_LIBOBJ([iconv]) 237 AC_LIBOBJ([iconv_close]) 238 fi 239 fi 240]) 241