1 # iconv_open.m4 serial 7
2 dnl Copyright (C) 2007-2010 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.
7 AC_DEFUN([gl_FUNC_ICONV_OPEN],
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.
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], [
19 #if defined _LIBICONV_VERSION || defined __GLIBC__
22 ], [gl_func_iconv_gnu=yes], [gl_func_iconv_gnu=no])
23 if test $gl_func_iconv_gnu = no; then
26 aix*) iconv_flavor=ICONV_FLAVOR_AIX ;;
27 irix*) iconv_flavor=ICONV_FLAVOR_IRIX ;;
28 hpux*) iconv_flavor=ICONV_FLAVOR_HPUX ;;
29 osf*) iconv_flavor=ICONV_FLAVOR_OSF ;;
30 solaris*) iconv_flavor=ICONV_FLAVOR_SOLARIS ;;
32 if test -n "$iconv_flavor"; then
33 AC_DEFINE_UNQUOTED([ICONV_FLAVOR], [$iconv_flavor],
34 [Define to a symbolic name denoting the flavor of iconv_open()
42 AC_DEFUN([gl_REPLACE_ICONV_OPEN],
46 AC_LIBOBJ([iconv_open])
49 AC_DEFUN([gl_FUNC_ICONV_OPEN_UTF],
51 AC_REQUIRE([gl_FUNC_ICONV_OPEN])
52 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
53 AC_REQUIRE([gl_ICONV_H_DEFAULTS])
54 if test "$am_cv_func_iconv" = yes; then
55 if test -n "$am_cv_proto_iconv_arg1"; then
60 AC_SUBST([ICONV_CONST])
61 AC_CACHE_CHECK([whether iconv supports conversion between UTF-8 and UTF-{16,32}{BE,LE}],
62 [gl_cv_func_iconv_supports_utf],
65 LIBS="$LIBS $LIBICONV"
72 #define ASSERT(expr) if (!(expr)) return 1;
75 /* Test conversion from UTF-8 to UTF-16BE with no errors. */
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]";
88 cd = iconv_open ("UTF-16BE", "UTF-8");
89 ASSERT (cd != (iconv_t)(-1));
91 inbytesleft = sizeof (input) - 1;
93 outbytesleft = sizeof (buf);
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);
102 /* Test conversion from UTF-8 to UTF-16LE with no errors. */
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";
115 cd = iconv_open ("UTF-16LE", "UTF-8");
116 ASSERT (cd != (iconv_t)(-1));
118 inbytesleft = sizeof (input) - 1;
120 outbytesleft = sizeof (buf);
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);
129 /* Test conversion from UTF-8 to UTF-32BE with no errors. */
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]";
142 cd = iconv_open ("UTF-32BE", "UTF-8");
143 ASSERT (cd != (iconv_t)(-1));
145 inbytesleft = sizeof (input) - 1;
147 outbytesleft = sizeof (buf);
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);
156 /* Test conversion from UTF-8 to UTF-32LE with no errors. */
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";
169 cd = iconv_open ("UTF-32LE", "UTF-8");
170 ASSERT (cd != (iconv_t)(-1));
172 inbytesleft = sizeof (input) - 1;
174 outbytesleft = sizeof (buf);
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);
183 /* Test conversion from UTF-16BE to UTF-8 with no errors.
184 This test fails on NetBSD 3.0. */
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]";
197 cd = iconv_open ("UTF-8", "UTF-16BE");
198 ASSERT (cd != (iconv_t)(-1));
200 inbytesleft = sizeof (input) - 1;
202 outbytesleft = sizeof (buf);
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);
212 }], [gl_cv_func_iconv_supports_utf=yes], [gl_cv_func_iconv_supports_utf=no],
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"
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
223 solaris2.9 | solaris2.1[0-9]) gl_cv_func_iconv_supports_utf=yes ;;
230 if test $gl_cv_func_iconv_supports_utf = no; then
232 AC_DEFINE([REPLACE_ICONV_UTF], [1],
233 [Define if the iconv() functions are enhanced to handle the UTF-{16,32}{BE,LE} encodings.])
235 gl_REPLACE_ICONV_OPEN
237 AC_LIBOBJ([iconv_close])