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From pque...@apache.org
Subject svn commit: r884387 - in /incubator/trafficserver/traffic/trunk/build-aux: ./ apr_common.m4 apr_network.m4
Date Thu, 26 Nov 2009 02:54:05 GMT
Author: pquerna
Date: Thu Nov 26 02:54:04 2009
New Revision: 884387

URL: http://svn.apache.org/viewvc?rev=884387&view=rev
Log:
Add APR Network macros

Added:
    incubator/trafficserver/traffic/trunk/build-aux/
    incubator/trafficserver/traffic/trunk/build-aux/apr_common.m4
    incubator/trafficserver/traffic/trunk/build-aux/apr_network.m4

Added: incubator/trafficserver/traffic/trunk/build-aux/apr_common.m4
URL: http://svn.apache.org/viewvc/incubator/trafficserver/traffic/trunk/build-aux/apr_common.m4?rev=884387&view=auto
==============================================================================
--- incubator/trafficserver/traffic/trunk/build-aux/apr_common.m4 (added)
+++ incubator/trafficserver/traffic/trunk/build-aux/apr_common.m4 Thu Nov 26 02:54:04 2009
@@ -0,0 +1,979 @@
+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 apr_common.m4: APR's general-purpose autoconf macros
+dnl
+
+dnl
+dnl APR_CONFIG_NICE(filename)
+dnl
+dnl Saves a snapshot of the configure command-line for later reuse
+dnl
+AC_DEFUN([APR_CONFIG_NICE], [
+  rm -f $1
+  cat >$1<<EOF
+#! /bin/sh
+#
+# Created by configure
+
+EOF
+  if test -n "$CC"; then
+    echo "CC=\"$CC\"; export CC" >> $1
+  fi
+  if test -n "$CFLAGS"; then
+    echo "CFLAGS=\"$CFLAGS\"; export CFLAGS" >> $1
+  fi
+  if test -n "$CPPFLAGS"; then
+    echo "CPPFLAGS=\"$CPPFLAGS\"; export CPPFLAGS" >> $1
+  fi
+  if test -n "$LDFLAGS"; then
+    echo "LDFLAGS=\"$LDFLAGS\"; export LDFLAGS" >> $1
+  fi
+  if test -n "$LTFLAGS"; then
+    echo "LTFLAGS=\"$LTFLAGS\"; export LTFLAGS" >> $1
+  fi
+  if test -n "$LIBS"; then
+    echo "LIBS=\"$LIBS\"; export LIBS" >> $1
+  fi
+  if test -n "$INCLUDES"; then
+    echo "INCLUDES=\"$INCLUDES\"; export INCLUDES" >> $1
+  fi
+  if test -n "$NOTEST_CFLAGS"; then
+    echo "NOTEST_CFLAGS=\"$NOTEST_CFLAGS\"; export NOTEST_CFLAGS" >> $1
+  fi
+  if test -n "$NOTEST_CPPFLAGS"; then
+    echo "NOTEST_CPPFLAGS=\"$NOTEST_CPPFLAGS\"; export NOTEST_CPPFLAGS" >> $1
+  fi
+  if test -n "$NOTEST_LDFLAGS"; then
+    echo "NOTEST_LDFLAGS=\"$NOTEST_LDFLAGS\"; export NOTEST_LDFLAGS" >> $1
+  fi
+  if test -n "$NOTEST_LIBS"; then
+    echo "NOTEST_LIBS=\"$NOTEST_LIBS\"; export NOTEST_LIBS" >> $1
+  fi
+
+  # Retrieve command-line arguments.
+  eval "set x $[0] $ac_configure_args"
+  shift
+
+  for arg
+  do
+    APR_EXPAND_VAR(arg, $arg)
+    echo "\"[$]arg\" \\" >> $1
+  done
+  echo '"[$]@"' >> $1
+  chmod +x $1
+])dnl
+
+dnl APR_MKDIR_P_CHECK(fallback-mkdir-p)
+dnl checks whether mkdir -p works
+AC_DEFUN([APR_MKDIR_P_CHECK], [
+  AC_CACHE_CHECK(for working mkdir -p, ac_cv_mkdir_p,[
+    test -d conftestdir && rm -rf conftestdir
+    mkdir -p conftestdir/somedir >/dev/null 2>&1
+    if test -d conftestdir/somedir; then
+      ac_cv_mkdir_p=yes
+    else
+      ac_cv_mkdir_p=no
+    fi
+    rm -rf conftestdir
+  ])
+  if test "$ac_cv_mkdir_p" = "yes"; then
+      mkdir_p="mkdir -p"
+  else
+      mkdir_p="$1"
+  fi
+])
+
+dnl
+dnl APR_SUBDIR_CONFIG(dir [, sub-package-cmdline-args, args-to-drop])
+dnl
+dnl dir: directory to find configure in
+dnl sub-package-cmdline-args: arguments to add to the invocation (optional)
+dnl args-to-drop: arguments to drop from the invocation (optional)
+dnl
+dnl Note: This macro relies on ac_configure_args being set properly.
+dnl
+dnl The args-to-drop argument is shoved into a case statement, so
+dnl multiple arguments can be separated with a |.
+dnl
+dnl Note: Older versions of autoconf do not single-quote args, while 2.54+
+dnl places quotes around every argument.  So, if you want to drop the
+dnl argument called --enable-layout, you must pass the third argument as:
+dnl [--enable-layout=*|\'--enable-layout=*]
+dnl
+dnl Trying to optimize this is left as an exercise to the reader who wants
+dnl to put up with more autoconf craziness.  I give up.
+dnl
+AC_DEFUN([APR_SUBDIR_CONFIG], [
+  # save our work to this point; this allows the sub-package to use it
+  AC_CACHE_SAVE
+
+  echo "configuring package in $1 now"
+  ac_popdir=`pwd`
+  apr_config_subdirs="$1"
+  test -d $1 || $mkdir_p $1
+  ac_abs_srcdir=`(cd $srcdir/$1 && pwd)`
+  cd $1
+
+changequote(, )dnl
+      # A "../" for each directory in /$config_subdirs.
+      ac_dots=`echo $apr_config_subdirs|sed -e 's%^\./%%' -e 's%[^/]$%&/%' -e 's%[^/]*/%../%g'`
+changequote([, ])dnl
+
+  # Make the cache file pathname absolute for the subdirs
+  # required to correctly handle subdirs that might actually
+  # be symlinks
+  case "$cache_file" in
+  /*) # already absolute
+    ac_sub_cache_file=$cache_file ;;
+  *)  # Was relative path.
+    ac_sub_cache_file="$ac_popdir/$cache_file" ;;
+  esac
+
+  ifelse($3, [], [apr_configure_args=$ac_configure_args],[
+  apr_configure_args=
+  apr_sep=
+  for apr_configure_arg in $ac_configure_args
+  do
+    case "$apr_configure_arg" in
+      $3)
+        continue ;;
+    esac
+    apr_configure_args="$apr_configure_args$apr_sep'$apr_configure_arg'"
+    apr_sep=" "
+  done
+  ])
+
+  dnl autoconf doesn't add --silent to ac_configure_args; explicitly pass it
+  test "x$silent" = "xyes" && apr_configure_args="$apr_configure_args --silent"
+
+  dnl AC_CONFIG_SUBDIRS silences option warnings, emulate this for 2.62
+  apr_configure_args="--disable-option-checking $apr_configure_args" 
+
+  dnl The eval makes quoting arguments work - specifically the second argument
+  dnl where the quoting mechanisms used is "" rather than [].
+  dnl
+  dnl We need to execute another shell because some autoconf/shell combinations
+  dnl will choke after doing repeated APR_SUBDIR_CONFIG()s.  (Namely Solaris
+  dnl and autoconf-2.54+)
+  if eval $SHELL $ac_abs_srcdir/configure $apr_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_abs_srcdir $2
+  then :
+    echo "$1 configured properly"
+  else
+    echo "configure failed for $1"
+    exit 1
+  fi
+
+  cd $ac_popdir
+
+  # grab any updates from the sub-package
+  AC_CACHE_LOAD
+])dnl
+
+dnl
+dnl APR_SAVE_THE_ENVIRONMENT(variable_name)
+dnl
+dnl Stores the variable (usually a Makefile macro) for later restoration
+dnl
+AC_DEFUN([APR_SAVE_THE_ENVIRONMENT], [
+  apr_ste_save_$1="$$1"
+])dnl
+
+dnl
+dnl APR_RESTORE_THE_ENVIRONMENT(variable_name, prefix_)
+dnl
+dnl Uses the previously saved variable content to figure out what configure
+dnl has added to the variable, moving the new bits to prefix_variable_name
+dnl and restoring the original variable contents.  This makes it possible
+dnl for a user to override configure when it does something stupid.
+dnl
+AC_DEFUN([APR_RESTORE_THE_ENVIRONMENT], [
+if test "x$apr_ste_save_$1" = "x"; then
+  $2$1="$$1"
+  $1=
+else
+  if test "x$apr_ste_save_$1" = "x$$1"; then
+    $2$1=
+  else
+    $2$1=`echo $$1 | sed -e "s%${apr_ste_save_$1}%%"`
+    $1="$apr_ste_save_$1"
+  fi
+fi
+if test "x$silent" != "xyes"; then
+  echo "  restoring $1 to \"$$1\""
+  echo "  setting $2$1 to \"$$2$1\""
+fi
+AC_SUBST($2$1)
+])dnl
+
+dnl
+dnl APR_SETIFNULL(variable, value)
+dnl
+dnl  Set variable iff it's currently null
+dnl
+AC_DEFUN([APR_SETIFNULL], [
+  if test -z "$$1"; then
+    test "x$silent" != "xyes" && echo "  setting $1 to \"$2\""
+    $1="$2"
+  fi
+])dnl
+
+dnl
+dnl APR_SETVAR(variable, value)
+dnl
+dnl  Set variable no matter what
+dnl
+AC_DEFUN([APR_SETVAR], [
+  test "x$silent" != "xyes" && echo "  forcing $1 to \"$2\""
+  $1="$2"
+])dnl
+
+dnl
+dnl APR_ADDTO(variable, value)
+dnl
+dnl  Add value to variable
+dnl
+AC_DEFUN([APR_ADDTO], [
+  if test "x$$1" = "x"; then
+    test "x$silent" != "xyes" && echo "  setting $1 to \"$2\""
+    $1="$2"
+  else
+    apr_addto_bugger="$2"
+    for i in $apr_addto_bugger; do
+      apr_addto_duplicate="0"
+      for j in $$1; do
+        if test "x$i" = "x$j"; then
+          apr_addto_duplicate="1"
+          break
+        fi
+      done
+      if test $apr_addto_duplicate = "0"; then
+        test "x$silent" != "xyes" && echo "  adding \"$i\" to $1"
+        $1="$$1 $i"
+      fi
+    done
+  fi
+])dnl
+
+dnl
+dnl APR_REMOVEFROM(variable, value)
+dnl
+dnl Remove a value from a variable
+dnl
+AC_DEFUN([APR_REMOVEFROM], [
+  if test "x$$1" = "x$2"; then
+    test "x$silent" != "xyes" && echo "  nulling $1"
+    $1=""
+  else
+    apr_new_bugger=""
+    apr_removed=0
+    for i in $$1; do
+      if test "x$i" != "x$2"; then
+        apr_new_bugger="$apr_new_bugger $i"
+      else
+        apr_removed=1
+      fi
+    done
+    if test $apr_removed = "1"; then
+      test "x$silent" != "xyes" && echo "  removed \"$2\" from $1"
+      $1=$apr_new_bugger
+    fi
+  fi
+]) dnl
+
+dnl
+dnl APR_CHECK_DEFINE_FILES( symbol, header_file [header_file ...] )
+dnl
+AC_DEFUN([APR_CHECK_DEFINE_FILES], [
+  AC_CACHE_CHECK([for $1 in $2],ac_cv_define_$1,[
+    ac_cv_define_$1=no
+    for curhdr in $2
+    do
+      AC_EGREP_CPP(YES_IS_DEFINED, [
+#include <$curhdr>
+#ifdef $1
+YES_IS_DEFINED
+#endif
+      ], ac_cv_define_$1=yes)
+    done
+  ])
+  if test "$ac_cv_define_$1" = "yes"; then
+    AC_DEFINE(HAVE_$1, 1, [Define if $1 is defined])
+  fi
+])
+
+
+dnl
+dnl APR_CHECK_DEFINE(symbol, header_file)
+dnl
+AC_DEFUN([APR_CHECK_DEFINE], [
+  AC_CACHE_CHECK([for $1 in $2],ac_cv_define_$1,[
+    AC_EGREP_CPP(YES_IS_DEFINED, [
+#include <$2>
+#ifdef $1
+YES_IS_DEFINED
+#endif
+    ], ac_cv_define_$1=yes, ac_cv_define_$1=no)
+  ])
+  if test "$ac_cv_define_$1" = "yes"; then
+    AC_DEFINE(HAVE_$1, 1, [Define if $1 is defined in $2])
+  fi
+])
+
+dnl
+dnl APR_CHECK_APR_DEFINE( symbol )
+dnl
+AC_DEFUN([APR_CHECK_APR_DEFINE], [
+apr_old_cppflags=$CPPFLAGS
+CPPFLAGS="$CPPFLAGS $INCLUDES"
+AC_EGREP_CPP(YES_IS_DEFINED, [
+#include <apr.h>
+#if $1
+YES_IS_DEFINED
+#endif
+], ac_cv_define_$1=yes, ac_cv_define_$1=no)
+CPPFLAGS=$apr_old_cppflags
+])
+
+dnl APR_CHECK_FILE(filename); set ac_cv_file_filename to
+dnl "yes" if 'filename' is readable, else "no".
+dnl @deprecated! - use AC_CHECK_FILE instead
+AC_DEFUN([APR_CHECK_FILE], [
+dnl Pick a safe variable name
+define([apr_cvname], ac_cv_file_[]translit([$1], [./+-], [__p_]))
+AC_CACHE_CHECK([for $1], [apr_cvname],
+[if test -r $1; then
+   apr_cvname=yes
+ else
+   apr_cvname=no
+ fi])
+])
+
+define(APR_IFALLYES,[dnl
+ac_rc=yes
+for ac_spec in $1; do
+    ac_type=`echo "$ac_spec" | sed -e 's/:.*$//'`
+    ac_item=`echo "$ac_spec" | sed -e 's/^.*://'`
+    case $ac_type in
+        header )
+            ac_item=`echo "$ac_item" | sed 'y%./+-%__p_%'`
+            ac_var="ac_cv_header_$ac_item"
+            ;;
+        file )
+            ac_item=`echo "$ac_item" | sed 'y%./+-%__p_%'`
+            ac_var="ac_cv_file_$ac_item"
+            ;;
+        func )   ac_var="ac_cv_func_$ac_item"   ;;
+        struct ) ac_var="ac_cv_struct_$ac_item" ;;
+        define ) ac_var="ac_cv_define_$ac_item" ;;
+        custom ) ac_var="$ac_item" ;;
+    esac
+    eval "ac_val=\$$ac_var"
+    if test ".$ac_val" != .yes; then
+        ac_rc=no
+        break
+    fi
+done
+if test ".$ac_rc" = .yes; then
+    :
+    $2
+else
+    :
+    $3
+fi
+])
+
+
+define(APR_BEGIN_DECISION,[dnl
+ac_decision_item='$1'
+ac_decision_msg='FAILED'
+ac_decision=''
+])
+
+
+AC_DEFUN([APR_DECIDE],[dnl
+dnl Define the flag (or not) in apr_private.h via autoheader
+AH_TEMPLATE($1, [Define if $2 will be used])
+ac_decision='$1'
+ac_decision_msg='$2'
+ac_decision_$1=yes
+ac_decision_$1_msg='$2'
+])
+
+
+define(APR_DECISION_OVERRIDE,[dnl
+    ac_decision=''
+    for ac_item in $1; do
+         eval "ac_decision_this=\$ac_decision_${ac_item}"
+         if test ".$ac_decision_this" = .yes; then
+             ac_decision=$ac_item
+             eval "ac_decision_msg=\$ac_decision_${ac_item}_msg"
+         fi
+    done
+])
+
+
+define(APR_DECISION_FORCE,[dnl
+ac_decision="$1"
+eval "ac_decision_msg=\"\$ac_decision_${ac_decision}_msg\""
+])
+
+
+define(APR_END_DECISION,[dnl
+if test ".$ac_decision" = .; then
+    echo "[$]0:Error: decision on $ac_decision_item failed" 1>&2
+    exit 1
+else
+    if test ".$ac_decision_msg" = .; then
+        ac_decision_msg="$ac_decision"
+    fi
+    AC_DEFINE_UNQUOTED(${ac_decision_item})
+    AC_MSG_RESULT([decision on $ac_decision_item... $ac_decision_msg])
+fi
+])
+
+
+dnl
+dnl APR_CHECK_SIZEOF_EXTENDED(INCLUDES, TYPE [, CROSS_SIZE])
+dnl
+dnl A variant of AC_CHECK_SIZEOF which allows the checking of
+dnl sizes of non-builtin types
+dnl
+AC_DEFUN([APR_CHECK_SIZEOF_EXTENDED],
+[changequote(<<, >>)dnl
+dnl The name to #define.
+define(<<AC_TYPE_NAME>>, translit(sizeof_$2, [a-z *], [A-Z_P]))dnl
+dnl The cache variable name.
+define(<<AC_CV_NAME>>, translit(ac_cv_sizeof_$2, [ *], [_p]))dnl
+changequote([, ])dnl
+AC_MSG_CHECKING(size of $2)
+AC_CACHE_VAL(AC_CV_NAME,
+[AC_TRY_RUN([#include <stdio.h>
+$1
+main()
+{
+  FILE *f=fopen("conftestval", "w");
+  if (!f) exit(1);
+  fprintf(f, "%d\n", sizeof($2));
+  exit(0);
+}], AC_CV_NAME=`cat conftestval`, AC_CV_NAME=0, ifelse([$3],,,
+AC_CV_NAME=$3))])dnl
+AC_MSG_RESULT($AC_CV_NAME)
+AC_DEFINE_UNQUOTED(AC_TYPE_NAME, $AC_CV_NAME, [The size of ]$2)
+undefine([AC_TYPE_NAME])dnl
+undefine([AC_CV_NAME])dnl
+])
+
+
+dnl
+dnl APR_TRY_COMPILE_NO_WARNING(INCLUDES, FUNCTION-BODY,
+dnl             [ACTIONS-IF-NO-WARNINGS], [ACTIONS-IF-WARNINGS])
+dnl
+dnl Tries a compile test with warnings activated so that the result
+dnl is false if the code doesn't compile cleanly.  For compilers
+dnl where it is not known how to activate a "fail-on-error" mode,
+dnl it is undefined which of the sets of actions will be run.
+dnl
+AC_DEFUN([APR_TRY_COMPILE_NO_WARNING],
+[apr_save_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $CFLAGS_WARN"
+ if test "$ac_cv_prog_gcc" = "yes"; then 
+   CFLAGS="$CFLAGS -Werror"
+ fi
+ AC_COMPILE_IFELSE(
+  [#include "confdefs.h"
+  ]
+  [[$1]]
+  [int main(int argc, const char *const *argv) {]
+  [[$2]]
+  [   return 0; }],
+  [$3], [$4])
+ CFLAGS=$apr_save_CFLAGS
+])
+
+dnl
+dnl APR_CHECK_STRERROR_R_RC
+dnl
+dnl  Decide which style of retcode is used by this system's 
+dnl  strerror_r().  It either returns int (0 for success, -1
+dnl  for failure), or it returns a pointer to the error 
+dnl  string.
+dnl
+dnl
+AC_DEFUN([APR_CHECK_STRERROR_R_RC], [
+AC_MSG_CHECKING(for type of return code from strerror_r)
+AC_TRY_RUN([
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+main()
+{
+  char buf[1024];
+  if (strerror_r(ERANGE, buf, sizeof buf) < 1) {
+    exit(0);
+  }
+  else {
+    exit(1);
+  }
+}], [
+    ac_cv_strerror_r_rc_int=yes ], [
+    ac_cv_strerror_r_rc_int=no ], [
+    ac_cv_strerror_r_rc_int=no ] )
+if test "x$ac_cv_strerror_r_rc_int" = xyes; then
+  AC_DEFINE(STRERROR_R_RC_INT, 1, [Define if strerror returns int])
+  msg="int"
+else
+  msg="pointer"
+fi
+AC_MSG_RESULT([$msg])
+] )
+
+dnl
+dnl APR_CHECK_DIRENT_INODE
+dnl
+dnl  Decide if d_fileno or d_ino are available in the dirent
+dnl  structure on this platform.  Single UNIX Spec says d_ino,
+dnl  BSD uses d_fileno.  Undef to find the real beast.
+dnl
+AC_DEFUN([APR_CHECK_DIRENT_INODE], [
+AC_CACHE_CHECK([for inode member of struct dirent], apr_cv_dirent_inode, [
+apr_cv_dirent_inode=no
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <dirent.h>
+],[
+#ifdef d_ino
+#undef d_ino
+#endif
+struct dirent de; de.d_fileno;
+], apr_cv_dirent_inode=d_fileno)
+if test "$apr_cv_dirent_inode" = "no"; then
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <dirent.h>
+],[
+#ifdef d_fileno
+#undef d_fileno
+#endif
+struct dirent de; de.d_ino;
+], apr_cv_dirent_inode=d_ino)
+fi
+])
+if test "$apr_cv_dirent_inode" != "no"; then
+  AC_DEFINE_UNQUOTED(DIRENT_INODE, $apr_cv_dirent_inode, 
+    [Define if struct dirent has an inode member])
+fi
+])
+
+dnl
+dnl APR_CHECK_DIRENT_TYPE
+dnl
+dnl  Decide if d_type is available in the dirent structure 
+dnl  on this platform.  Not part of the Single UNIX Spec.
+dnl  Note that this is worthless without DT_xxx macros, so
+dnl  look for one while we are at it.
+dnl
+AC_DEFUN([APR_CHECK_DIRENT_TYPE], [
+AC_CACHE_CHECK([for file type member of struct dirent], apr_cv_dirent_type,[
+apr_cv_dirent_type=no
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <dirent.h>
+],[
+struct dirent de; de.d_type = DT_REG;
+], apr_cv_dirent_type=d_type)
+])
+if test "$apr_cv_dirent_type" != "no"; then
+  AC_DEFINE_UNQUOTED(DIRENT_TYPE, $apr_cv_dirent_type, 
+    [Define if struct dirent has a d_type member]) 
+fi
+])
+
+dnl the following is a newline, a space, a tab, and a backslash (the
+dnl backslash is used by the shell to skip newlines, but m4 sees it;
+dnl treat it like whitespace).
+dnl WARNING: don't reindent these lines, or the space/tab will be lost!
+define([apr_whitespace],[
+ 	\])
+
+dnl
+dnl APR_COMMA_ARGS(ARG1 ...)
+dnl  convert the whitespace-separated arguments into comman-separated
+dnl  arguments.
+dnl
+dnl APR_FOREACH(CODE-BLOCK, ARG1, ARG2, ...)
+dnl  subsitute CODE-BLOCK for each ARG[i]. "eachval" will be set to ARG[i]
+dnl  within each iteration.
+dnl
+changequote({,})
+define({APR_COMMA_ARGS},{patsubst([$}{1],[[}apr_whitespace{]+],[,])})
+define({APR_FOREACH},
+  {ifelse($}{2,,,
+          [define([eachval],
+                  $}{2)$}{1[]APR_FOREACH([$}{1],
+                                         builtin([shift],
+                                                 builtin([shift], $}{@)))])})
+changequote([,])
+
+dnl APR_FLAG_HEADERS(HEADER-FILE ... [, FLAG-TO-SET ] [, "yes" ])
+dnl  we set FLAG-TO-SET to 1 if we find HEADER-FILE, otherwise we set to 0
+dnl  if FLAG-TO-SET is null, we automagically determine it's name
+dnl  by changing all "/" to "_" in the HEADER-FILE and dropping
+dnl  all "." and "-" chars. If the 3rd parameter is "yes" then instead of
+dnl  setting to 1 or 0, we set FLAG-TO-SET to yes or no.
+dnl  
+AC_DEFUN([APR_FLAG_HEADERS], [
+AC_CHECK_HEADERS($1)
+for aprt_i in $1
+do
+    ac_safe=`echo "$aprt_i" | sed 'y%./+-%__p_%'`
+    aprt_2=`echo "$aprt_i" | sed -e 's%/%_%g' -e 's/\.//g' -e 's/-//g'`
+    if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+       eval "ifelse($2,,$aprt_2,$2)=ifelse($3,yes,yes,1)"
+    else
+       eval "ifelse($2,,$aprt_2,$2)=ifelse($3,yes,no,0)"
+    fi
+done
+])
+
+dnl APR_FLAG_FUNCS(FUNC ... [, FLAG-TO-SET] [, "yes" ])
+dnl  if FLAG-TO-SET is null, we automagically determine it's name
+dnl  prepending "have_" to the function name in FUNC, otherwise
+dnl  we use what's provided as FLAG-TO-SET. If the 3rd parameter
+dnl  is "yes" then instead of setting to 1 or 0, we set FLAG-TO-SET
+dnl  to yes or no.
+dnl
+AC_DEFUN([APR_FLAG_FUNCS], [
+AC_CHECK_FUNCS($1)
+for aprt_j in $1
+do
+    aprt_3="have_$aprt_j"
+    if eval "test \"`echo '$ac_cv_func_'$aprt_j`\" = yes"; then
+       eval "ifelse($2,,$aprt_3,$2)=ifelse($3,yes,yes,1)"
+    else
+       eval "ifelse($2,,$aprt_3,$2)=ifelse($3,yes,no,0)"
+    fi
+done
+])
+
+dnl Iteratively interpolate the contents of the second argument
+dnl until interpolation offers no new result. Then assign the
+dnl final result to $1.
+dnl
+dnl Example:
+dnl
+dnl foo=1
+dnl bar='${foo}/2'
+dnl baz='${bar}/3'
+dnl APR_EXPAND_VAR(fraz, $baz)
+dnl   $fraz is now "1/2/3"
+dnl 
+AC_DEFUN([APR_EXPAND_VAR], [
+ap_last=
+ap_cur="$2"
+while test "x${ap_cur}" != "x${ap_last}";
+do
+  ap_last="${ap_cur}"
+  ap_cur=`eval "echo ${ap_cur}"`
+done
+$1="${ap_cur}"
+])
+
+dnl
+dnl Removes the value of $3 from the string in $2, strips of any leading
+dnl slashes, and returns the value in $1.
+dnl
+dnl Example:
+dnl orig_path="${prefix}/bar"
+dnl APR_PATH_RELATIVE(final_path, $orig_path, $prefix)
+dnl    $final_path now contains "bar"
+AC_DEFUN([APR_PATH_RELATIVE], [
+ap_stripped=`echo $2 | sed -e "s#^$3##"`
+# check if the stripping was successful
+if test "x$2" != "x${ap_stripped}"; then
+    # it was, so strip of any leading slashes
+    $1="`echo ${ap_stripped} | sed -e 's#^/*##'`"
+else
+    # it wasn't so return the original
+    $1="$2"
+fi
+])
+
+dnl APR_HELP_STRING(LHS, RHS)
+dnl Autoconf 2.50 can not handle substr correctly.  It does have 
+dnl AC_HELP_STRING, so let's try to call it if we can.
+dnl Note: this define must be on one line so that it can be properly returned
+dnl as the help string.  When using this macro with a multi-line RHS, ensure
+dnl that you surround the macro invocation with []s
+AC_DEFUN([APR_HELP_STRING], [ifelse(regexp(AC_ACVERSION, 2\.1), -1, AC_HELP_STRING([$1],[$2]),[  ][$1] substr([                       ],len($1))[$2])])
+
+dnl
+dnl APR_LAYOUT(configlayout, layoutname [, extravars])
+dnl
+AC_DEFUN([APR_LAYOUT], [
+  if test ! -f $srcdir/config.layout; then
+    echo "** Error: Layout file $srcdir/config.layout not found"
+    echo "** Error: Cannot use undefined layout '$LAYOUT'"
+    exit 1
+  fi
+  # Catch layout names including a slash which will otherwise
+  # confuse the heck out of the sed script.
+  case $2 in
+  */*) 
+    echo "** Error: $2 is not a valid layout name"
+    exit 1 ;;
+  esac
+  pldconf=./config.pld
+  changequote({,})
+  sed -e "1s/[ 	]*<[lL]ayout[ 	]*$2[ 	]*>[ 	]*//;1t" \
+      -e "1,/[ 	]*<[lL]ayout[ 	]*$2[ 	]*>[ 	]*/d" \
+      -e '/[ 	]*<\/Layout>[ 	]*/,$d' \
+      -e "s/^[ 	]*//g" \
+      -e "s/:[ 	]*/=\'/g" \
+      -e "s/[ 	]*$/'/g" \
+      $1 > $pldconf
+  layout_name=$2
+  if test ! -s $pldconf; then
+    echo "** Error: unable to find layout $layout_name"
+    exit 1
+  fi
+  . $pldconf
+  rm $pldconf
+  for var in prefix exec_prefix bindir sbindir libexecdir mandir \
+             sysconfdir datadir includedir localstatedir runtimedir \
+             logfiledir libdir installbuilddir libsuffix $3; do
+    eval "val=\"\$$var\""
+    case $val in
+      *+)
+        val=`echo $val | sed -e 's;\+$;;'`
+        eval "$var=\"\$val\""
+        autosuffix=yes
+        ;;
+      *)
+        autosuffix=no
+        ;;
+    esac
+    val=`echo $val | sed -e 's:\(.\)/*$:\1:'`
+    val=`echo $val | sed -e 's:[\$]\([a-z_]*\):${\1}:g'`
+    if test "$autosuffix" = "yes"; then
+      if echo $val | grep apache >/dev/null; then
+        addtarget=no
+      else
+        addtarget=yes
+      fi
+      if test "$addtarget" = "yes"; then
+        val="$val/apache2"
+      fi
+    fi
+    eval "$var='$val'"
+  done
+  changequote([,])
+])dnl
+
+dnl
+dnl APR_ENABLE_LAYOUT(default layout name [, extra vars])
+dnl
+AC_DEFUN([APR_ENABLE_LAYOUT], [
+AC_ARG_ENABLE(layout,
+[  --enable-layout=LAYOUT],[
+  LAYOUT=$enableval
+])
+
+if test -z "$LAYOUT"; then
+  LAYOUT="$1"
+fi
+APR_LAYOUT($srcdir/config.layout, $LAYOUT, $2)
+
+AC_MSG_CHECKING(for chosen layout)
+AC_MSG_RESULT($layout_name)
+])
+
+
+dnl
+dnl APR_PARSE_ARGUMENTS
+dnl a reimplementation of autoconf's argument parser,
+dnl used here to allow us to co-exist layouts and argument based
+dnl set ups.
+AC_DEFUN([APR_PARSE_ARGUMENTS], [
+ac_prev=
+# Retrieve the command-line arguments.  The eval is needed because
+# the arguments are quoted to preserve accuracy.
+eval "set x $ac_configure_args"
+shift
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval "$ac_prev=\$ac_option"
+    ac_prev=
+    continue
+  fi
+
+  ac_optarg=`expr "x$ac_option" : 'x[[^=]]*=\(.*\)'`
+
+  case $ac_option in
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir="$ac_optarg" ;;
+
+  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
+  | --da=*)
+    datadir="$ac_optarg" ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix="$ac_optarg" ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir="$ac_optarg" ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir="$ac_optarg" ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir="$ac_optarg" ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir="$ac_optarg" ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst \
+  | --locals | --local | --loca | --loc | --lo)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
+  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
+    localstatedir="$ac_optarg" ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir="$ac_optarg" ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix="$ac_optarg" ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir="$ac_optarg" ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir="$ac_optarg" ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir="$ac_optarg" ;;
+
+  esac
+done
+
+# Be sure to have absolute paths.
+for ac_var in exec_prefix prefix
+do
+  eval ac_val=$`echo $ac_var`
+  case $ac_val in
+    [[\\/$]]* | ?:[[\\/]]* | NONE | '' ) ;;
+    *)  AC_MSG_ERROR([expected an absolute path for --$ac_var: $ac_val]);;
+  esac
+done
+
+])dnl
+
+dnl
+dnl APR_CHECK_DEPEND
+dnl
+dnl Determine what program we can use to generate .deps-style dependencies
+dnl
+AC_DEFUN([APR_CHECK_DEPEND], [
+dnl Try to determine what depend program we can use
+dnl All GCC-variants should have -MM.
+dnl If not, then we can check on those, too.
+if test "$GCC" = "yes"; then
+  MKDEP='$(CC) -MM'
+else
+  rm -f conftest.c
+dnl <sys/types.h> should be available everywhere!
+  cat > conftest.c <<EOF
+#include <sys/types.h>
+  int main() { return 0; }
+EOF
+  MKDEP="true"
+  for i in "$CC -MM" "$CC -M" "$CPP -MM" "$CPP -M" "cpp -M"; do
+    AC_MSG_CHECKING([if $i can create proper make dependencies])
+    if $i conftest.c 2>/dev/null | grep 'conftest.o: conftest.c' >/dev/null; then
+      MKDEP=$i
+      AC_MSG_RESULT(yes)
+      break;
+    fi
+    AC_MSG_RESULT(no)
+  done
+  rm -f conftest.c
+fi
+
+AC_SUBST(MKDEP)
+])
+
+dnl
+dnl APR_CHECK_TYPES_COMPATIBLE(TYPE-1, TYPE-2, [ACTION-IF-TRUE])
+dnl
+dnl Try to determine whether two types are the same. Only works
+dnl for gcc and icc.
+dnl
+AC_DEFUN([APR_CHECK_TYPES_COMPATIBLE], [
+define([apr_cvname], apr_cv_typematch_[]translit([$1], [ ], [_])_[]translit([$2], [ ], [_]))
+AC_CACHE_CHECK([whether $1 and $2 are the same], apr_cvname, [
+AC_TRY_COMPILE(AC_INCLUDES_DEFAULT, [
+    int foo[0 - !__builtin_types_compatible_p($1, $2)];
+], [apr_cvname=yes
+$3], [apr_cvname=no])])
+])

Added: incubator/trafficserver/traffic/trunk/build-aux/apr_network.m4
URL: http://svn.apache.org/viewvc/incubator/trafficserver/traffic/trunk/build-aux/apr_network.m4?rev=884387&view=auto
==============================================================================
--- incubator/trafficserver/traffic/trunk/build-aux/apr_network.m4 (added)
+++ incubator/trafficserver/traffic/trunk/build-aux/apr_network.m4 Thu Nov 26 02:54:04 2009
@@ -0,0 +1,958 @@
+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 apr_network.m4: APR's autoconf macros for testing network support
+dnl
+
+dnl
+dnl check for type in_addr
+dnl
+AC_DEFUN([APR_TYPE_IN_ADDR],[
+  AC_CACHE_CHECK(for type in_addr, ac_cv_type_in_addr,[
+  AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#endif
+],[
+ struct in_addr arg;
+ arg.s_addr = htonl(INADDR_ANY);
+], [ ac_cv_type_in_addr="yes"] , [
+ac_cv_type_in_addr="no"])
+])
+])
+
+dnl
+dnl check for working getaddrinfo()
+dnl
+dnl Note that if the system doesn't have gai_strerror(), we
+dnl can't use getaddrinfo() because we can't get strings
+dnl describing the error codes.
+dnl
+AC_DEFUN([APR_CHECK_WORKING_GETADDRINFO], [
+  AC_CACHE_CHECK(for working getaddrinfo, ac_cv_working_getaddrinfo,[
+  AC_TRY_RUN( [
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+void main(void) {
+    struct addrinfo hints, *ai;
+    int error;
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    error = getaddrinfo("127.0.0.1", NULL, &hints, &ai);
+    if (error) {
+        exit(1);
+    }
+    if (ai->ai_addr->sa_family != AF_INET) {
+        exit(1);
+    }
+    exit(0);
+}
+],[
+  ac_cv_working_getaddrinfo="yes"
+],[
+  ac_cv_working_getaddrinfo="no"
+],[
+  ac_cv_working_getaddrinfo="yes"
+])])
+if test "$ac_cv_working_getaddrinfo" = "yes"; then
+  if test "$ac_cv_func_gai_strerror" != "yes"; then
+    ac_cv_working_getaddrinfo="no"
+  else
+    AC_DEFINE(HAVE_GETADDRINFO, 1, [Define if getaddrinfo exists and works well enough for APR])
+  fi
+fi
+])
+
+dnl Check whether the AI_ADDRCONFIG flag can be used with getaddrinfo
+AC_DEFUN([APR_CHECK_GETADDRINFO_ADDRCONFIG], [
+  AC_CACHE_CHECK(for working AI_ADDRCONFIG, apr_cv_gai_addrconfig, [
+  AC_TRY_RUN([
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+int main(int argc, char **argv) {
+    struct addrinfo hints, *ai;
+
+    memset(&hints, 0, sizeof(hints));
+    hints.ai_family = AF_UNSPEC;
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_flags = AI_ADDRCONFIG;
+    return getaddrinfo("localhost", NULL, &hints, &ai) != 0;
+}], [apr_cv_gai_addrconfig=yes], 
+    [apr_cv_gai_addrconfig=no],
+    [apr_cv_gai_addrconfig=no])])
+
+if test $apr_cv_gai_addrconfig = yes; then
+   AC_DEFINE(HAVE_GAI_ADDRCONFIG, 1, [Define if getaddrinfo accepts the AI_ADDRCONFIG flag])
+fi
+])
+
+dnl
+dnl check for working getnameinfo()
+dnl
+AC_DEFUN([APR_CHECK_WORKING_GETNAMEINFO], [
+  AC_CACHE_CHECK(for working getnameinfo, ac_cv_working_getnameinfo,[
+  AC_TRY_RUN( [
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
+void main(void) {
+    struct sockaddr_in sa;
+    char hbuf[256];
+    int error;
+
+    sa.sin_family = AF_INET;
+    sa.sin_port = 0;
+    sa.sin_addr.s_addr = inet_addr("127.0.0.1");
+#ifdef SIN6_LEN
+    sa.sin_len = sizeof(sa);
+#endif
+
+    error = getnameinfo((const struct sockaddr *)&sa, sizeof(sa),
+                        hbuf, 256, NULL, 0,
+                        NI_NUMERICHOST);
+    if (error) {
+        exit(1);
+    } else {
+        exit(0);
+    }
+}
+],[
+  ac_cv_working_getnameinfo="yes"
+],[
+  ac_cv_working_getnameinfo="no"
+],[
+  ac_cv_working_getnameinfo="yes"
+])])
+if test "$ac_cv_working_getnameinfo" = "yes"; then
+  AC_DEFINE(HAVE_GETNAMEINFO, 1, [Define if getnameinfo exists])
+fi
+])
+
+dnl
+dnl check for negative error codes for getaddrinfo()
+dnl
+AC_DEFUN([APR_CHECK_NEGATIVE_EAI], [
+  AC_CACHE_CHECK(for negative error codes for getaddrinfo, ac_cv_negative_eai,[
+  AC_TRY_RUN( [
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+void main(void) {
+    if (EAI_ADDRFAMILY < 0) {
+        exit(0);
+    }
+    exit(1);
+}
+],[
+  ac_cv_negative_eai="yes"
+],[
+  ac_cv_negative_eai="no"
+],[
+  ac_cv_negative_eai="no"
+])])
+if test "$ac_cv_negative_eai" = "yes"; then
+  AC_DEFINE(NEGATIVE_EAI, 1, [Define if EAI_ error codes from getaddrinfo are negative])
+fi
+])
+
+dnl
+dnl Checks the definition of gethostbyname_r and gethostbyaddr_r
+dnl which are different for glibc, solaris and assorted other operating
+dnl systems
+dnl
+dnl Note that this test is executed too early to see if we have all of
+dnl the headers.
+AC_DEFUN([APR_CHECK_GETHOSTBYNAME_R_STYLE], [
+
+dnl Try and compile a glibc2 gethostbyname_r piece of code, and set the
+dnl style of the routines to glibc2 on success
+AC_CACHE_CHECK([style of gethostbyname_r routine], ac_cv_gethostbyname_r_style,
+APR_TRY_COMPILE_NO_WARNING([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+],[
+int tmp = gethostbyname_r((const char *) 0, (struct hostent *) 0, 
+                          (char *) 0, 0, (struct hostent **) 0, &tmp);
+/* use tmp to suppress the warning */
+tmp=0;
+], ac_cv_gethostbyname_r_style=glibc2, ac_cv_gethostbyname_r_style=none))
+
+if test "$ac_cv_gethostbyname_r_style" = "glibc2"; then
+    AC_DEFINE(GETHOSTBYNAME_R_GLIBC2, 1, [Define if gethostbyname_r has the glibc style])
+fi
+
+AC_CACHE_CHECK([3rd argument to the gethostbyname_r routines], ac_cv_gethostbyname_r_arg,
+APR_TRY_COMPILE_NO_WARNING([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+],[
+int tmp = gethostbyname_r((const char *) 0, (struct hostent *) 0, 
+                          (struct hostent_data *) 0);
+/* use tmp to suppress the warning */
+tmp=0;
+], ac_cv_gethostbyname_r_arg=hostent_data, ac_cv_gethostbyname_r_arg=char))
+
+if test "$ac_cv_gethostbyname_r_arg" = "hostent_data"; then
+    AC_DEFINE(GETHOSTBYNAME_R_HOSTENT_DATA, 1, [Define if gethostbyname_r has the hostent_data for the third argument])
+fi
+])
+
+dnl
+dnl Checks the definition of getservbyname_r
+dnl which are different for glibc, solaris and assorted other operating
+dnl systems
+dnl
+dnl Note that this test is executed too early to see if we have all of
+dnl the headers.
+AC_DEFUN([APR_CHECK_GETSERVBYNAME_R_STYLE], [
+
+dnl Try and compile a glibc2 getservbyname_r piece of code, and set the
+dnl style of the routines to glibc2 on success
+AC_CACHE_CHECK([style of getservbyname_r routine], ac_cv_getservbyname_r_style, [
+APR_TRY_COMPILE_NO_WARNING([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+],[
+int tmp = getservbyname_r((const char *) 0, (const char *) 0,
+                          (struct servent *) 0, (char *) 0, 0,
+                          (struct servent **) 0);
+/* use tmp to suppress the warning */
+tmp=0;
+], ac_cv_getservbyname_r_style=glibc2, ac_cv_getservbyname_r_style=none)
+
+if test "$ac_cv_getservbyname_r_style" = "none"; then
+    dnl Try and compile a Solaris getservbyname_r piece of code, and set the
+    dnl style of the routines to solaris on success
+    APR_TRY_COMPILE_NO_WARNING([
+    #ifdef HAVE_SYS_TYPES_H
+    #include <sys/types.h>
+    #endif
+    #ifdef HAVE_NETINET_IN_H
+    #include <netinet/in.h>
+    #endif
+    #ifdef HAVE_ARPA_INET_H
+    #include <arpa/inet.h>
+    #endif
+    #ifdef HAVE_NETDB_H
+    #include <netdb.h>
+    #endif
+    #ifdef HAVE_STDLIB_H
+    #include <stdlib.h>
+    #endif
+    ],[
+    struct servent *tmp = getservbyname_r((const char *) 0, (const char *) 0,
+                                          (struct servent *) 0, (char *) 0, 0);
+    /* use tmp to suppress the warning */
+    tmp=NULL;
+    ], ac_cv_getservbyname_r_style=solaris, ac_cv_getservbyname_r_style=none)
+fi
+
+if test "$ac_cv_getservbyname_r_style" = "none"; then
+    dnl Try and compile a OSF/1 getservbyname_r piece of code, and set the
+    dnl style of the routines to osf1 on success
+    APR_TRY_COMPILE_NO_WARNING([
+    #ifdef HAVE_SYS_TYPES_H
+    #include <sys/types.h>
+    #endif
+    #ifdef HAVE_NETINET_IN_H
+    #include <netinet/in.h>
+    #endif
+    #ifdef HAVE_ARPA_INET_H
+    #include <arpa/inet.h>
+    #endif
+    #ifdef HAVE_NETDB_H
+    #include <netdb.h>
+    #endif
+    #ifdef HAVE_STDLIB_H
+    #include <stdlib.h>
+    #endif
+    ],[
+    int tmp = getservbyname_r((const char *) 0, (const char *) 0,
+                              (struct servent *) 0, (struct servent_data *) 0);
+    /* use tmp to suppress the warning */
+    tmp=0;
+    ], ac_cv_getservbyname_r_style=osf1, ac_cv_getservbyname_r_style=none)
+fi
+])
+
+if test "$ac_cv_getservbyname_r_style" = "glibc2"; then
+    AC_DEFINE(GETSERVBYNAME_R_GLIBC2, 1, [Define if getservbyname_r has the glibc style])
+elif test "$ac_cv_getservbyname_r_style" = "solaris"; then
+    AC_DEFINE(GETSERVBYNAME_R_SOLARIS, 1, [Define if getservbyname_r has the Solaris style])
+elif test "$ac_cv_getservbyname_r_style" = "osf1"; then
+    AC_DEFINE(GETSERVBYNAME_R_OSF1, 1, [Define if getservbyname_r has the OSF/1 style])
+fi
+])
+
+dnl
+dnl see if TCP_NODELAY setting is inherited from listening sockets
+dnl
+AC_DEFUN([APR_CHECK_TCP_NODELAY_INHERITED], [
+  AC_CACHE_CHECK(if TCP_NODELAY setting is inherited from listening sockets, ac_cv_tcp_nodelay_inherited,[
+  AC_TRY_RUN( [
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
+#ifndef HAVE_SOCKLEN_T
+typedef int socklen_t;
+#endif
+int main(void) {
+    int listen_s, connected_s, client_s;
+    int listen_port, rc;
+    struct sockaddr_in sa;
+    socklen_t sa_len;
+    socklen_t option_len;
+    int option;
+
+    listen_s = socket(AF_INET, SOCK_STREAM, 0);
+    if (listen_s < 0) {
+        perror("socket");
+        exit(1);
+    }
+    option = 1;
+    rc = setsockopt(listen_s, IPPROTO_TCP, TCP_NODELAY, &option, sizeof option);
+    if (rc < 0) {
+        perror("setsockopt TCP_NODELAY");
+        exit(1);
+    }
+    memset(&sa, 0, sizeof sa);
+    sa.sin_family = AF_INET;
+#ifdef BEOS
+    sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+#endif
+    /* leave port 0 to get ephemeral */
+    rc = bind(listen_s, (struct sockaddr *)&sa, sizeof sa);
+    if (rc < 0) {
+        perror("bind for ephemeral port");
+        exit(1);
+    }
+    /* find ephemeral port */
+    sa_len = sizeof(sa);
+    rc = getsockname(listen_s, (struct sockaddr *)&sa, &sa_len);
+    if (rc < 0) {
+        perror("getsockname");
+        exit(1);
+    }
+    listen_port = sa.sin_port;
+    rc = listen(listen_s, 5);
+    if (rc < 0) {
+        perror("listen");
+        exit(1);
+    }
+    client_s = socket(AF_INET, SOCK_STREAM, 0);
+    if (client_s < 0) {
+        perror("socket");
+        exit(1);
+    }
+    memset(&sa, 0, sizeof sa);
+    sa.sin_family = AF_INET;
+    sa.sin_port   = listen_port;
+#ifdef BEOS
+    sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+#endif
+    /* leave sin_addr all zeros to use loopback */
+    rc = connect(client_s, (struct sockaddr *)&sa, sizeof sa);
+    if (rc < 0) {
+        perror("connect");
+        exit(1);
+    }
+    sa_len = sizeof sa;
+    connected_s = accept(listen_s, (struct sockaddr *)&sa, &sa_len);
+    if (connected_s < 0) {
+        perror("accept");
+        exit(1);
+    }
+    option_len = sizeof option;
+    rc = getsockopt(connected_s, IPPROTO_TCP, TCP_NODELAY, &option, &option_len);
+    if (rc < 0) {
+        perror("getsockopt");
+        exit(1);
+    }
+    if (!option) {
+        fprintf(stderr, "TCP_NODELAY is not set in the child.\n");
+        exit(1);
+    }
+    return 0;
+}
+],[
+    ac_cv_tcp_nodelay_inherited="yes"
+],[
+    ac_cv_tcp_nodelay_inherited="no"
+],[
+    ac_cv_tcp_nodelay_inherited="yes"
+])])
+if test "$ac_cv_tcp_nodelay_inherited" = "yes"; then
+    tcp_nodelay_inherited=1
+else
+    tcp_nodelay_inherited=0
+fi
+])
+
+dnl
+dnl Determine whether TCP_NODELAY and TCP_CORK can both be set
+dnl on a TCP socket.
+dnl
+AC_DEFUN([APR_CHECK_TCP_NODELAY_WITH_CORK], [
+AC_CACHE_CHECK([whether TCP_NODELAY and TCP_CORK can both be enabled],
+[apr_cv_tcp_nodelay_with_cork],
+[AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+]], [[
+    int fd, flag, rc;
+
+    fd = socket(AF_INET, SOCK_STREAM, 0);
+    if (fd < 0) {
+       exit(1);
+    }
+
+    flag = 1;
+    rc = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof flag);
+    if (rc < 0) {
+        perror("setsockopt TCP_NODELAY");
+        exit(2);
+    }
+
+    flag = 1;
+    rc = setsockopt(fd, IPPROTO_TCP, TCP_CORK, &flag, sizeof flag);
+    if (rc < 0) {
+        perror("setsockopt TCP_CORK");
+        exit(3);
+    }
+
+    exit(0);
+]])], [apr_cv_tcp_nodelay_with_cork=yes], [apr_cv_tcp_nodelay_with_cork=no])])
+
+if test "$apr_cv_tcp_nodelay_with_cork" = "yes"; then
+  AC_DEFINE([HAVE_TCP_NODELAY_WITH_CORK], 1,
+            [Define if TCP_NODELAY and TCP_CORK can be enabled at the same time])
+fi
+])
+
+
+dnl
+dnl see if O_NONBLOCK setting is inherited from listening sockets
+dnl
+AC_DEFUN([APR_CHECK_O_NONBLOCK_INHERITED], [
+  AC_CACHE_CHECK(if O_NONBLOCK setting is inherited from listening sockets, ac_cv_o_nonblock_inherited,[
+  AC_TRY_RUN( [
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
+#ifndef HAVE_SOCKLEN_T
+typedef int socklen_t;
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+int main(void) {
+    int listen_s, connected_s, client_s;
+    int listen_port, rc;
+    struct sockaddr_in sa;
+    socklen_t sa_len;
+
+    listen_s = socket(AF_INET, SOCK_STREAM, 0);
+    if (listen_s < 0) {
+        perror("socket");
+        exit(1);
+    }
+    memset(&sa, 0, sizeof sa);
+    sa.sin_family = AF_INET;
+#ifdef BEOS
+    sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+#endif
+    /* leave port 0 to get ephemeral */
+    rc = bind(listen_s, (struct sockaddr *)&sa, sizeof sa);
+    if (rc < 0) {
+        perror("bind for ephemeral port");
+        exit(1);
+    }
+    /* find ephemeral port */
+    sa_len = sizeof(sa);
+    rc = getsockname(listen_s, (struct sockaddr *)&sa, &sa_len);
+    if (rc < 0) {
+        perror("getsockname");
+        exit(1);
+    }
+    listen_port = sa.sin_port;
+    rc = listen(listen_s, 5);
+    if (rc < 0) {
+        perror("listen");
+        exit(1);
+    }
+    rc = fcntl(listen_s, F_SETFL, O_NONBLOCK);
+    if (rc < 0) {
+        perror("fcntl(F_SETFL)");
+        exit(1);
+    }
+    client_s = socket(AF_INET, SOCK_STREAM, 0);
+    if (client_s < 0) {
+        perror("socket");
+        exit(1);
+    }
+    memset(&sa, 0, sizeof sa);
+    sa.sin_family = AF_INET;
+    sa.sin_port   = listen_port;
+#ifdef BEOS
+    sa.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+#endif
+    /* leave sin_addr all zeros to use loopback */
+    rc = connect(client_s, (struct sockaddr *)&sa, sizeof sa);
+    if (rc < 0) {
+        perror("connect");
+        exit(1);
+    }
+    sa_len = sizeof sa;
+    connected_s = accept(listen_s, (struct sockaddr *)&sa, &sa_len);
+    if (connected_s < 0) {
+        perror("accept");
+        exit(1);
+    }
+    rc = fcntl(connected_s, F_GETFL, 0);
+    if (rc < 0) {
+        perror("fcntl(F_GETFL)");
+        exit(1);
+    }
+    if (!(rc & O_NONBLOCK)) {
+        fprintf(stderr, "O_NONBLOCK is not set in the child.\n");
+        exit(1);
+    }
+    return 0;
+}
+],[
+    ac_cv_o_nonblock_inherited="yes"
+],[
+    ac_cv_o_nonblock_inherited="no"
+],[
+    ac_cv_o_nonblock_inherited="yes"
+])])
+if test "$ac_cv_o_nonblock_inherited" = "yes"; then
+    o_nonblock_inherited=1
+else
+    o_nonblock_inherited=0
+fi
+])
+
+dnl 
+dnl check for socklen_t, fall back to unsigned int
+dnl
+AC_DEFUN([APR_CHECK_SOCKLEN_T], [
+AC_CACHE_CHECK(for socklen_t, ac_cv_socklen_t,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+],[
+socklen_t foo = (socklen_t) 0;
+],[
+    ac_cv_socklen_t=yes
+],[
+    ac_cv_socklen_t=no
+])
+])
+
+if test "$ac_cv_socklen_t" = "yes"; then
+  AC_DEFINE(HAVE_SOCKLEN_T, 1, [Whether you have socklen_t])
+fi
+])
+
+
+AC_DEFUN([APR_CHECK_INET_ADDR], [
+AC_CACHE_CHECK(for inet_addr, ac_cv_func_inet_addr,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+],[
+inet_addr("127.0.0.1");
+],[
+    ac_cv_func_inet_addr=yes
+],[
+    ac_cv_func_inet_addr=no
+])
+])
+
+if test "$ac_cv_func_inet_addr" = "yes"; then
+  have_inet_addr=1
+else
+  have_inet_addr=0
+fi
+])
+
+
+AC_DEFUN([APR_CHECK_INET_NETWORK], [
+AC_CACHE_CHECK(for inet_network, ac_cv_func_inet_network,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+],[
+inet_network("127.0.0.1");
+],[
+    ac_cv_func_inet_network=yes
+],[
+    ac_cv_func_inet_network=no
+])
+])
+
+if test "$ac_cv_func_inet_network" = "yes"; then
+  have_inet_network=1
+else
+  have_inet_network=0
+fi
+])
+
+dnl Check for presence of struct sockaddr_storage.
+AC_DEFUN([APR_CHECK_SOCKADDR_STORAGE], [
+AC_CACHE_CHECK(for sockaddr_storage, apr_cv_define_sockaddr_storage,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+],[struct sockaddr_storage sa;],
+[apr_cv_define_sockaddr_storage=yes],
+[apr_cv_define_sockaddr_storage=no])])
+
+if test "$apr_cv_define_sockaddr_storage" = "yes"; then
+  have_sa_storage=1
+else
+  have_sa_storage=0
+fi
+AC_SUBST(have_sa_storage)
+])
+
+dnl Check for presence of struct sockaddr_in6.
+AC_DEFUN([APR_CHECK_SOCKADDR_IN6], [
+AC_CACHE_CHECK(for sockaddr_in6, ac_cv_define_sockaddr_in6,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+],[
+struct sockaddr_in6 sa;
+],[
+    ac_cv_define_sockaddr_in6=yes
+],[
+    ac_cv_define_sockaddr_in6=no
+])
+])
+
+if test "$ac_cv_define_sockaddr_in6" = "yes"; then
+  have_sockaddr_in6=1
+else
+  have_sockaddr_in6=0
+fi
+])
+
+dnl Check for presence of struct sockaddr_un.
+AC_DEFUN([APR_CHECK_SOCKADDR_UN], [
+AC_CACHE_CHECK(for sockaddr_un, ac_cv_define_sockaddr_un,[
+AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_SYS_UN_H
+#include <sys/un.h>
+#endif
+],[
+struct sockaddr_un sa;
+],[
+    ac_cv_define_sockaddr_un=yes
+],[
+    ac_cv_define_sockaddr_un=no
+])
+])
+
+if test "$ac_cv_define_sockaddr_un" = "yes"; then
+  have_sockaddr_un=1
+else
+  have_sockaddr_un=0
+fi
+AC_SUBST(have_sockaddr_un)
+])
+
+dnl
+dnl APR_H_ERRNO_COMPILE_CHECK
+dnl
+AC_DEFUN([APR_H_ERRNO_COMPILE_CHECK], [
+  if test x$1 != x; then
+    CPPFLAGS="-D$1 $CPPFLAGS"
+  fi
+  AC_TRY_COMPILE([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+],[
+int h_e = h_errno;
+],[
+  if test x$1 != x; then
+    ac_cv_h_errno_cppflags="$1"
+  else
+    ac_cv_h_errno_cppflags=yes
+  fi
+],[
+  ac_cv_h_errno_cppflags=no
+])])
+
+
+dnl
+dnl APR_CHECK_SCTP
+dnl
+dnl check for presence of SCTP protocol support
+dnl
+AC_DEFUN([APR_CHECK_SCTP],
+[
+  AC_CACHE_CHECK([whether SCTP is supported], [apr_cv_sctp], [
+  AC_TRY_RUN([
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_SCTP_H
+#include <netinet/sctp.h>
+#endif
+#ifdef HAVE_NETINET_SCTP_UIO_H
+#include <netinet/sctp_uio.h>
+#endif
+#include <stdlib.h>
+int main(void) {
+    int s, opt = 1;
+    if ((s = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP)) < 0)
+       exit(1);
+    if (setsockopt(s, IPPROTO_SCTP, SCTP_NODELAY, &opt, sizeof(int)) < 0)
+       exit(2);
+    exit(0);
+}], [apr_cv_sctp=yes], [apr_cv_sctp=no], [apr_cv_sctp=no])])
+
+if test "$apr_cv_sctp" = "yes"; then
+    have_sctp=1
+else
+    have_sctp=0
+fi
+])
+
+dnl APR_CHECK_MCAST: check for multicast interfaces
+AC_DEFUN([APR_CHECK_MCAST], [
+AC_CACHE_CHECK([for struct ip_mreq], [apr_cv_struct_ipmreq], [
+AC_TRY_COMPILE([
+#include <sys/types.h>
+#include <netinet/in.h>
+], [
+    struct ip_mreq mip;
+    mip.imr_interface.s_addr = INADDR_ANY;
+], [apr_cv_struct_ipmreq=yes], [apr_cv_struct_ipmreq=no], [apr_cv_struct_ipmreq=yes])])
+
+if test $apr_cv_struct_ipmreq = yes; then
+   AC_DEFINE([HAVE_STRUCT_IPMREQ], 1, [Define if struct impreq was found])
+fi
+])
+
+dnl
+dnl APR_CHECK_H_ERRNO_FLAG
+dnl
+dnl checks which flags are necessary for <netdb.h> to define h_errno
+dnl
+AC_DEFUN([APR_CHECK_H_ERRNO_FLAG], [
+  AC_MSG_CHECKING([for h_errno in netdb.h])
+  AC_CACHE_VAL(ac_cv_h_errno_cppflags,[
+    APR_H_ERRNO_COMPILE_CHECK
+    if test "$ac_cv_h_errno_cppflags" = "no"; then
+      ac_save="$CPPFLAGS"
+      for flag in _XOPEN_SOURCE_EXTENDED; do
+        APR_H_ERRNO_COMPILE_CHECK($flag)
+        if test "$ac_cv_h_errno_cppflags" != "no"; then
+          break
+        fi
+      done
+      CPPFLAGS="$ac_save"
+    fi
+  ])
+  if test "$ac_cv_h_errno_cppflags" != "no"; then
+    if test "$ac_cv_h_errno_cppflags" != "yes"; then
+      CPPFLAGS="-D$ac_cv_h_errno_cppflags $CPPFLAGS"
+      AC_MSG_RESULT([yes, with -D$ac_cv_h_errno_cppflags])
+    else
+      AC_MSG_RESULT([$ac_cv_h_errno_cppflags])
+    fi
+  else
+    AC_MSG_RESULT([$ac_cv_h_errno_cppflags])
+  fi
+])
+
+
+AC_DEFUN([APR_EBCDIC], [
+  AC_CACHE_CHECK([whether system uses EBCDIC],ac_cv_ebcdic,[
+  AC_TRY_RUN( [
+int main(void) { 
+  return (unsigned char)'A' != (unsigned char)0xC1; 
+} 
+],[
+  ac_cv_ebcdic="yes"
+],[
+  ac_cv_ebcdic="no"
+],[
+  ac_cv_ebcdic="no"
+])])
+  if test "$ac_cv_ebcdic" = "yes"; then
+    apr_charset_ebcdic=1
+  else
+    apr_charset_ebcdic=0
+  fi
+  AC_SUBST(apr_charset_ebcdic)
+])
+



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