75e3949dcc
git-svn-id: svn://svn.openwrt.org/openwrt/packages@24391 3c298f89-4303-0410-b956-a3cf2f4a3e73
105 lines
3.4 KiB
Diff
105 lines
3.4 KiB
Diff
--- /dev/null
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+++ b/iconv.m4
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@@ -0,0 +1,101 @@
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+# iconv.m4 serial AM4 (gettext-0.11.3)
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+dnl Copyright (C) 2000-2002 Free Software Foundation, Inc.
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+dnl This file is free software; the Free Software Foundation
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+dnl gives unlimited permission to copy and/or distribute it,
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+dnl with or without modifications, as long as this notice is preserved.
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+
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+dnl From Bruno Haible.
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+
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+AC_DEFUN([AM_ICONV_LINKFLAGS_BODY],
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+[
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+ dnl Prerequisites of AC_LIB_LINKFLAGS_BODY.
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+ AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
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+ AC_REQUIRE([AC_LIB_RPATH])
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+
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+ dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
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+ dnl accordingly.
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+ AC_LIB_LINKFLAGS_BODY([iconv])
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+])
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+
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+AC_DEFUN([AM_ICONV_LINK],
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+[
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+ dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
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+ dnl those with the standalone portable GNU libiconv installed).
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+
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+ dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV
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+ dnl accordingly.
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+ AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY])
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+
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+ dnl Add $INCICONV to CPPFLAGS before performing the following checks,
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+ dnl because if the user has installed libiconv and not disabled its use
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+ dnl via --without-libiconv-prefix, he wants to use it. The first
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+ dnl AC_TRY_LINK will then fail, the second AC_TRY_LINK will succeed.
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+ am_save_CPPFLAGS="$CPPFLAGS"
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+ AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV])
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+
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+ AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
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+ am_cv_func_iconv="no, consider installing GNU libiconv"
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+ am_cv_lib_iconv=no
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+ AC_TRY_LINK([#include <stdlib.h>
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+#include <iconv.h>],
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+ [iconv_t cd = iconv_open("","");
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+ iconv(cd,NULL,NULL,NULL,NULL);
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+ iconv_close(cd);],
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+ am_cv_func_iconv=yes)
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+ if test "$am_cv_func_iconv" != yes; then
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+ am_save_LIBS="$LIBS"
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+ LIBS="$LIBS $LIBICONV"
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+ AC_TRY_LINK([#include <stdlib.h>
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+#include <iconv.h>],
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+ [iconv_t cd = iconv_open("","");
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+ iconv(cd,NULL,NULL,NULL,NULL);
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+ iconv_close(cd);],
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+ am_cv_lib_iconv=yes
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+ am_cv_func_iconv=yes)
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+ LIBS="$am_save_LIBS"
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+ fi
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+ ])
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+ if test "$am_cv_func_iconv" = yes; then
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+ AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
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+ fi
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+ if test "$am_cv_lib_iconv" = yes; then
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+ AC_MSG_CHECKING([how to link with libiconv])
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+ AC_MSG_RESULT([$LIBICONV])
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+ else
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+ dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV
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+ dnl either.
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+ CPPFLAGS="$am_save_CPPFLAGS"
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+ LIBICONV=
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+ LTLIBICONV=
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+ fi
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+ AC_SUBST(LIBICONV)
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+ AC_SUBST(LTLIBICONV)
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+])
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+
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+AC_DEFUN([AM_ICONV],
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+[
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+ AM_ICONV_LINK
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+ if test "$am_cv_func_iconv" = yes; then
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+ AC_MSG_CHECKING([for iconv declaration])
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+ AC_CACHE_VAL(am_cv_proto_iconv, [
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+ AC_TRY_COMPILE([
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+#include <stdlib.h>
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+#include <iconv.h>
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+extern
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+#ifdef __cplusplus
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+"C"
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+#endif
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+#if defined(__STDC__) || defined(__cplusplus)
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+size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
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+#else
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+size_t iconv();
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+#endif
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+], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
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+ am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
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+ am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
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+ AC_MSG_RESULT([$]{ac_t:-
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+ }[$]am_cv_proto_iconv)
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+ AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
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+ [Define as const if the declaration of iconv() needs const.])
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+ fi
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+])
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