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-rw-r--r--gnulib-m4/iconv_open.m4237
1 files changed, 237 insertions, 0 deletions
diff --git a/gnulib-m4/iconv_open.m4 b/gnulib-m4/iconv_open.m4
new file mode 100644
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+++ b/gnulib-m4/iconv_open.m4
@@ -0,0 +1,237 @@
+# iconv_open.m4 serial 5
+dnl Copyright (C) 2007-2009 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_ICONV_OPEN],
+[
+ AC_REQUIRE([AM_ICONV])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([gl_ICONV_H_DEFAULTS])
+ if test "$am_cv_func_iconv" = yes; then
+ dnl Test whether iconv_open accepts standardized encoding names.
+ dnl We know that GNU libiconv and GNU libc do.
+ AC_EGREP_CPP([gnu_iconv], [
+ #include <iconv.h>
+ #if defined _LIBICONV_VERSION || defined __GLIBC__
+ gnu_iconv
+ #endif
+ ], [gl_func_iconv_gnu=yes], [gl_func_iconv_gnu=no])
+ if test $gl_func_iconv_gnu = no; then
+ iconv_flavor=
+ case "$host_os" in
+ aix*) iconv_flavor=ICONV_FLAVOR_AIX ;;
+ irix*) iconv_flavor=ICONV_FLAVOR_IRIX ;;
+ hpux*) iconv_flavor=ICONV_FLAVOR_HPUX ;;
+ osf*) iconv_flavor=ICONV_FLAVOR_OSF ;;
+ esac
+ if test -n "$iconv_flavor"; then
+ AC_DEFINE_UNQUOTED([ICONV_FLAVOR], [$iconv_flavor],
+ [Define to a symbolic name denoting the flavor of iconv_open()
+ implementation.])
+ gl_REPLACE_ICONV_OPEN
+ fi
+ fi
+ fi
+])
+
+AC_DEFUN([gl_REPLACE_ICONV_OPEN],
+[
+ gl_REPLACE_ICONV_H
+ REPLACE_ICONV_OPEN=1
+ AC_LIBOBJ([iconv_open])
+])
+
+AC_DEFUN([gl_FUNC_ICONV_OPEN_UTF],
+[
+ AC_REQUIRE([gl_FUNC_ICONV_OPEN])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_REQUIRE([gl_ICONV_H_DEFAULTS])
+ if test "$am_cv_func_iconv" = yes; then
+ if test -n "$am_cv_proto_iconv_arg1"; then
+ ICONV_CONST="const"
+ else
+ ICONV_CONST=
+ fi
+ AC_SUBST([ICONV_CONST])
+ AC_CACHE_CHECK([whether iconv supports conversion between UTF-8 and UTF-{16,32}{BE,LE}],
+ [gl_cv_func_iconv_supports_utf],
+ [
+ save_LIBS="$LIBS"
+ LIBS="$LIBS $LIBICONV"
+ AC_TRY_RUN([
+#include <iconv.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#define ASSERT(expr) if (!(expr)) return 1;
+int main ()
+{
+ /* Test conversion from UTF-8 to UTF-16BE with no errors. */
+ {
+ static const char input[] =
+ "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]";
+ static const char expected[] =
+ "\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]";
+ iconv_t cd;
+ char buf[100];
+ const char *inptr;
+ size_t inbytesleft;
+ char *outptr;
+ size_t outbytesleft;
+ size_t res;
+ cd = iconv_open ("UTF-16BE", "UTF-8");
+ ASSERT (cd != (iconv_t)(-1));
+ inptr = input;
+ inbytesleft = sizeof (input) - 1;
+ outptr = buf;
+ outbytesleft = sizeof (buf);
+ res = iconv (cd,
+ (ICONV_CONST char **) &inptr, &inbytesleft,
+ &outptr, &outbytesleft);
+ ASSERT (res == 0 && inbytesleft == 0);
+ ASSERT (outptr == buf + (sizeof (expected) - 1));
+ ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0);
+ ASSERT (iconv_close (cd) == 0);
+ }
+ /* Test conversion from UTF-8 to UTF-16LE with no errors. */
+ {
+ static const char input[] =
+ "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]";
+ static const char expected[] =
+ "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";
+ iconv_t cd;
+ char buf[100];
+ const char *inptr;
+ size_t inbytesleft;
+ char *outptr;
+ size_t outbytesleft;
+ size_t res;
+ cd = iconv_open ("UTF-16LE", "UTF-8");
+ ASSERT (cd != (iconv_t)(-1));
+ inptr = input;
+ inbytesleft = sizeof (input) - 1;
+ outptr = buf;
+ outbytesleft = sizeof (buf);
+ res = iconv (cd,
+ (ICONV_CONST char **) &inptr, &inbytesleft,
+ &outptr, &outbytesleft);
+ ASSERT (res == 0 && inbytesleft == 0);
+ ASSERT (outptr == buf + (sizeof (expected) - 1));
+ ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0);
+ ASSERT (iconv_close (cd) == 0);
+ }
+ /* Test conversion from UTF-8 to UTF-32BE with no errors. */
+ {
+ static const char input[] =
+ "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]";
+ static const char expected[] =
+ "\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]";
+ iconv_t cd;
+ char buf[100];
+ const char *inptr;
+ size_t inbytesleft;
+ char *outptr;
+ size_t outbytesleft;
+ size_t res;
+ cd = iconv_open ("UTF-32BE", "UTF-8");
+ ASSERT (cd != (iconv_t)(-1));
+ inptr = input;
+ inbytesleft = sizeof (input) - 1;
+ outptr = buf;
+ outbytesleft = sizeof (buf);
+ res = iconv (cd,
+ (ICONV_CONST char **) &inptr, &inbytesleft,
+ &outptr, &outbytesleft);
+ ASSERT (res == 0 && inbytesleft == 0);
+ ASSERT (outptr == buf + (sizeof (expected) - 1));
+ ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0);
+ ASSERT (iconv_close (cd) == 0);
+ }
+ /* Test conversion from UTF-8 to UTF-32LE with no errors. */
+ {
+ static const char input[] =
+ "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]";
+ static const char expected[] =
+ "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";
+ iconv_t cd;
+ char buf[100];
+ const char *inptr;
+ size_t inbytesleft;
+ char *outptr;
+ size_t outbytesleft;
+ size_t res;
+ cd = iconv_open ("UTF-32LE", "UTF-8");
+ ASSERT (cd != (iconv_t)(-1));
+ inptr = input;
+ inbytesleft = sizeof (input) - 1;
+ outptr = buf;
+ outbytesleft = sizeof (buf);
+ res = iconv (cd,
+ (ICONV_CONST char **) &inptr, &inbytesleft,
+ &outptr, &outbytesleft);
+ ASSERT (res == 0 && inbytesleft == 0);
+ ASSERT (outptr == buf + (sizeof (expected) - 1));
+ ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0);
+ ASSERT (iconv_close (cd) == 0);
+ }
+ /* Test conversion from UTF-16BE to UTF-8 with no errors.
+ This test fails on NetBSD 3.0. */
+ {
+ static const char input[] =
+ "\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]";
+ static const char expected[] =
+ "Japanese (\346\227\245\346\234\254\350\252\236) [\360\235\224\215\360\235\224\236\360\235\224\255]";
+ iconv_t cd;
+ char buf[100];
+ const char *inptr;
+ size_t inbytesleft;
+ char *outptr;
+ size_t outbytesleft;
+ size_t res;
+ cd = iconv_open ("UTF-8", "UTF-16BE");
+ ASSERT (cd != (iconv_t)(-1));
+ inptr = input;
+ inbytesleft = sizeof (input) - 1;
+ outptr = buf;
+ outbytesleft = sizeof (buf);
+ res = iconv (cd,
+ (ICONV_CONST char **) &inptr, &inbytesleft,
+ &outptr, &outbytesleft);
+ ASSERT (res == 0 && inbytesleft == 0);
+ ASSERT (outptr == buf + (sizeof (expected) - 1));
+ ASSERT (memcmp (buf, expected, sizeof (expected) - 1) == 0);
+ ASSERT (iconv_close (cd) == 0);
+ }
+ return 0;
+}], [gl_cv_func_iconv_supports_utf=yes], [gl_cv_func_iconv_supports_utf=no],
+ [
+ dnl We know that GNU libiconv, GNU libc, and Solaris >= 9 do.
+ dnl OSF/1 5.1 has these encodings, but inserts a BOM in the "to"
+ dnl direction.
+ gl_cv_func_iconv_supports_utf=no
+ if test $gl_func_iconv_gnu = yes; then
+ gl_cv_func_iconv_supports_utf=yes
+ else
+changequote(,)dnl
+ case "$host_os" in
+ solaris2.9 | solaris2.1[0-9]) gl_cv_func_iconv_supports_utf=yes ;;
+ esac
+changequote([,])dnl
+ fi
+ ])
+ LIBS="$save_LIBS"
+ ])
+ if test $gl_cv_func_iconv_supports_utf = no; then
+ REPLACE_ICONV_UTF=1
+ AC_DEFINE([REPLACE_ICONV_UTF], [1],
+ [Define if the iconv() functions are enhanced to handle the UTF-{16,32}{BE,LE} encodings.])
+ REPLACE_ICONV=1
+ gl_REPLACE_ICONV_OPEN
+ AC_LIBOBJ([iconv])
+ AC_LIBOBJ([iconv_close])
+ fi
+ fi
+])