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-rw-r--r--build/apu-iconv.m4132
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diff --git a/build/apu-iconv.m4 b/build/apu-iconv.m4
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+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements. See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License. You may obtain a copy of the License at
+dnl
+dnl http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl
+dnl APU_TRY_ICONV[ IF-SUCCESS, IF-FAILURE ]: try to compile for iconv.
+dnl
+AC_DEFUN([APU_TRY_ICONV], [
+ AC_TRY_LINK([
+#include <stdlib.h>
+#include <iconv.h>
+],
+[
+ iconv_t cd = iconv_open("", "");
+ iconv(cd, NULL, NULL, NULL, NULL);
+], [$1], [$2])
+])
+
+dnl
+dnl APU_FIND_ICONV: find an iconv library
+dnl
+AC_DEFUN([APU_FIND_ICONV], [
+
+apu_iconv_dir="unknown"
+have_apr_iconv="0"
+want_iconv="1"
+AC_ARG_WITH(iconv,[ --with-iconv[=DIR] path to iconv installation],
+ [ apu_iconv_dir="$withval"
+ if test "$apu_iconv_dir" = "no"; then
+ have_apr_iconv="0"
+ have_iconv="0"
+ want_iconv="0"
+ elif test "$apu_iconv_dir" != "yes"; then
+ if test -f "$apu_iconv_dir/include/apr-1/api_version.h"; then
+ have_apr_iconv="1"
+ have_iconv="0"
+ APR_ADDTO(APRUTIL_INCLUDES,[-I$apu_iconv_dir/include/apr-1])
+ APR_ADDTO(APRUTIL_LIBS,[$apu_iconv_dir/lib/libapriconv-1.la])
+ AC_MSG_RESULT(using apr-iconv)
+ elif test -f "$apu_iconv_dir/include/iconv.h"; then
+ have_apr_iconv="0"
+ have_iconv="1"
+ APR_ADDTO(CPPFLAGS,[-I$apu_iconv_dir/include])
+ APR_ADDTO(LDFLAGS,[-L$apu_iconv_dir/lib])
+ fi
+ fi
+ ])
+
+if test "$want_iconv" = "1" -a "$have_apr_iconv" != "1"; then
+ AC_CHECK_HEADER(iconv.h, [
+ APU_TRY_ICONV([ have_iconv="1" ], [
+
+ APR_ADDTO(LIBS,[-liconv])
+
+ APU_TRY_ICONV([
+ APR_ADDTO(APRUTIL_LIBS,[-liconv])
+ APR_ADDTO(APRUTIL_EXPORT_LIBS,[-liconv])
+ have_iconv="1" ],
+ [ have_iconv="0" ])
+
+ APR_REMOVEFROM(LIBS,[-liconv])
+
+ ])
+ ], [ have_iconv="0" ])
+fi
+
+if test "$want_iconv" = "1" -a "$apu_iconv_dir" != "unknown"; then
+ if test "$have_iconv" != "1"; then
+ if test "$have_apr_iconv" != "1"; then
+ AC_MSG_ERROR([iconv support requested, but not found])
+ fi
+ fi
+ APR_REMOVEFROM(CPPFLAGS,[-I$apu_iconv_dir/include])
+ APR_REMOVEFROM(LDFLAGS,[-L$apu_iconv_dir/lib])
+ APR_ADDTO(APRUTIL_INCLUDES,[-I$apu_iconv_dir/include])
+ APR_ADDTO(APRUTIL_LDFLAGS,[-L$apu_iconv_dir/lib])
+fi
+
+if test "$have_iconv" = "1"; then
+ APU_CHECK_ICONV_INBUF
+fi
+
+APR_FLAG_HEADERS(iconv.h langinfo.h)
+APR_FLAG_FUNCS(nl_langinfo)
+APR_CHECK_DEFINE(CODESET, langinfo.h, [CODESET defined in langinfo.h])
+
+AC_SUBST(have_iconv)
+AC_SUBST(have_apr_iconv)
+])dnl
+
+dnl
+dnl APU_CHECK_ICONV_INBUF
+dnl
+dnl Decide whether or not the inbuf parameter to iconv() is const.
+dnl
+dnl We try to compile something without const. If it fails to
+dnl compile, we assume that the system's iconv() has const.
+dnl Unfortunately, we won't realize when there was a compile
+dnl warning, so we allow a variable -- apu_iconv_inbuf_const -- to
+dnl be set in hints.m4 to specify whether or not iconv() has const
+dnl on this parameter.
+dnl
+AC_DEFUN([APU_CHECK_ICONV_INBUF], [
+AC_MSG_CHECKING(for type of inbuf parameter to iconv)
+if test "x$apu_iconv_inbuf_const" = "x"; then
+ APR_TRY_COMPILE_NO_WARNING([
+ #include <stddef.h>
+ #include <iconv.h>
+ ],[
+ iconv(0,(char **)0,(size_t *)0,(char **)0,(size_t *)0);
+ ], apu_iconv_inbuf_const="0", apu_iconv_inbuf_const="1")
+fi
+if test "$apu_iconv_inbuf_const" = "1"; then
+ AC_DEFINE(APU_ICONV_INBUF_CONST, 1, [Define if the inbuf parm to iconv() is const char **])
+ msg="const char **"
+else
+ msg="char **"
+fi
+AC_MSG_RESULT([$msg])
+])dnl