From: Wouter Wijngaards <wouter@nlnetlabs.nl>
Date: Mon, 1 Aug 2011 11:14:33 +0000 (+0000)
Subject: Fix autoconf 2.68 warnings
X-Git-Tag: release-1.4.13rc1~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=27b5d2570336462da992a42a0a40777afddb264f;p=thirdparty%2Funbound.git

Fix autoconf 2.68 warnings


git-svn-id: file:///svn/unbound/trunk@2467 be551aaa-1e26-0410-a405-d3ace91eadb9
---

diff --git a/acx_nlnetlabs.m4 b/acx_nlnetlabs.m4
index a79c2812a..825355aba 100644
--- a/acx_nlnetlabs.m4
+++ b/acx_nlnetlabs.m4
@@ -2,7 +2,8 @@
 # Copyright 2009, Wouter Wijngaards, NLnet Labs.   
 # BSD licensed.
 #
-# Version 12
+# Version 13
+# 2011-08-01 Fix autoconf 2.68 warnings
 # 2011-06-23 Add ACX_CHECK_FLTO to check -flto.
 # 2010-08-16 Fix FLAG_OMITTED for AS_TR_CPP changes in autoconf-2.66.
 # 2010-07-02 Add check for ss_family (for minix).
@@ -766,7 +767,7 @@ AC_DEFUN([ACX_CHECK_GETADDRINFO_WITH_INCLUDES],
 AC_MSG_CHECKING(for getaddrinfo)
 ac_cv_func_getaddrinfo=no
 AC_LINK_IFELSE(
-[
+[AC_LANG_SOURCE([[
 #ifdef __cplusplus
 extern "C"
 {
@@ -780,14 +781,14 @@ int main() {
         ;
         return 0;
 }
-],
+]])],
 dnl this case on linux, solaris, bsd
 [ac_cv_func_getaddrinfo="yes"],
 dnl no quick getaddrinfo, try mingw32 and winsock2 library.
 ORIGLIBS="$LIBS"
 LIBS="$LIBS -lws2_32"
 AC_LINK_IFELSE(
-AC_LANG_PROGRAM(
+[AC_LANG_PROGRAM(
 [
 #ifdef HAVE_WS2TCPIP_H
 #include <ws2tcpip.h>
@@ -796,7 +797,7 @@ AC_LANG_PROGRAM(
 [
         (void)getaddrinfo(NULL, NULL, NULL, NULL);
 ]
-),
+)],
 [
 ac_cv_func_getaddrinfo="yes"
 dnl already: LIBS="$LIBS -lws2_32"
@@ -860,7 +861,8 @@ if echo $target | grep mingw32 >/dev/null; then
 	AC_MSG_RESULT([no (windows)])
 	AC_DEFINE([NONBLOCKING_IS_BROKEN], 1, [Define if the network stack does not fully support nonblocking io (causes lower performance).])
 else
-AC_RUN_IFELSE(AC_LANG_PROGRAM([
+AC_RUN_IFELSE([
+AC_LANG_SOURCE([[
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -884,7 +886,9 @@ AC_RUN_IFELSE(AC_LANG_PROGRAM([
 #ifdef HAVE_TIME_H
 #include <time.h>
 #endif
-],[[
+
+int main(void)
+{
 	int port;
 	int sfd, cfd;
 	int num = 10;
@@ -977,7 +981,8 @@ AC_RUN_IFELSE(AC_LANG_PROGRAM([
 
 	close(sfd);
 	close(cfd);
-]]), [
+}
+]])], [
 	AC_MSG_RESULT([yes])
 ], [
 	AC_MSG_RESULT([no])
@@ -1017,13 +1022,13 @@ AC_DEFUN([ACX_FUNC_IOCTLSOCKET],
 [
 # check ioctlsocket
 AC_MSG_CHECKING(for ioctlsocket)
-AC_LINK_IFELSE(AC_LANG_PROGRAM([
+AC_LINK_IFELSE([AC_LANG_PROGRAM([
 #ifdef HAVE_WINSOCK2_H
 #include <winsock2.h>
 #endif
 ], [
 	(void)ioctlsocket(0, 0, NULL);
-]), [
+])], [
 AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_IOCTLSOCKET, 1, [if the function 'ioctlsocket' is available])
 ],[AC_MSG_RESULT(no)])
diff --git a/configure b/configure
index 33d763d84..b01a8662d 100755
--- a/configure
+++ b/configure
@@ -1,13 +1,13 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.66 for unbound 1.4.13.
+# Generated by GNU Autoconf 2.65 for unbound 1.4.13.
 #
 # Report bugs to <unbound-bugs@nlnetlabs.nl>.
 #
 #
 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
-# Foundation, Inc.
+# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
+# Inc.
 #
 #
 # This configure script is free software; the Free Software Foundation
@@ -327,7 +327,7 @@ $as_echo X"$as_dir" |
       test -d "$as_dir" && break
     done
     test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+  } || test -d "$as_dir" || as_fn_error "cannot create directory $as_dir"
 
 
 } # as_fn_mkdir_p
@@ -367,19 +367,19 @@ else
 fi # as_fn_arith
 
 
-# as_fn_error STATUS ERROR [LINENO LOG_FD]
-# ----------------------------------------
+# as_fn_error ERROR [LINENO LOG_FD]
+# ---------------------------------
 # Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
 # provided, also output the error to LOG_FD, referencing LINENO. Then exit the
-# script with STATUS, using 1 if that was 0.
+# script with status $?, using 1 if that was 0.
 as_fn_error ()
 {
-  as_status=$1; test $as_status -eq 0 && as_status=1
-  if test "$4"; then
-    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  as_status=$?; test $as_status -eq 0 && as_status=1
+  if test "$3"; then
+    as_lineno=${as_lineno-"$2"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $1" >&$3
   fi
-  $as_echo "$as_me: error: $2" >&2
+  $as_echo "$as_me: error: $1" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
@@ -543,7 +543,7 @@ test -n "$DJDIR" || exec 7<&0 </dev/null
 exec 6>&1
 
 # Name of the host.
-# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
 # so uname gets run too.
 ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
 
@@ -885,7 +885,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
+      as_fn_error "invalid feature name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -911,7 +911,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
+      as_fn_error "invalid feature name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1115,7 +1115,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: $ac_useropt"
+      as_fn_error "invalid package name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1131,7 +1131,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: $ac_useropt"
+      as_fn_error "invalid package name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1161,8 +1161,8 @@ do
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) as_fn_error $? "unrecognized option: \`$ac_option'
-Try \`$0 --help' for more information"
+  -*) as_fn_error "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information."
     ;;
 
   *=*)
@@ -1170,7 +1170,7 @@ Try \`$0 --help' for more information"
     # Reject names that are not valid shell variable names.
     case $ac_envvar in #(
       '' | [0-9]* | *[!_$as_cr_alnum]* )
-      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+      as_fn_error "invalid variable name: \`$ac_envvar'" ;;
     esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
@@ -1188,13 +1188,13 @@ done
 
 if test -n "$ac_prev"; then
   ac_option=--`echo $ac_prev | sed 's/_/-/g'`
-  as_fn_error $? "missing argument to $ac_option"
+  as_fn_error "missing argument to $ac_option"
 fi
 
 if test -n "$ac_unrecognized_opts"; then
   case $enable_option_checking in
     no) ;;
-    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    fatal) as_fn_error "unrecognized options: $ac_unrecognized_opts" ;;
     *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
   esac
 fi
@@ -1217,7 +1217,7 @@ do
     [\\/$]* | ?:[\\/]* )  continue;;
     NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
   esac
-  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+  as_fn_error "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
 # There might be people who depend on the old broken behavior: `$host'
@@ -1231,8 +1231,8 @@ target=$target_alias
 if test "x$host_alias" != x; then
   if test "x$build_alias" = x; then
     cross_compiling=maybe
-    $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't use --host.
-    If a cross compiler is detected then cross compile mode will be used" >&2
+    $as_echo "$as_me: WARNING: If you wanted to set the --build type, don't use --host.
+    If a cross compiler is detected then cross compile mode will be used." >&2
   elif test "x$build_alias" != "x$host_alias"; then
     cross_compiling=yes
   fi
@@ -1247,9 +1247,9 @@ test "$silent" = yes && exec 6>/dev/null
 ac_pwd=`pwd` && test -n "$ac_pwd" &&
 ac_ls_di=`ls -di .` &&
 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
-  as_fn_error $? "working directory cannot be determined"
+  as_fn_error "working directory cannot be determined"
 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
-  as_fn_error $? "pwd does not report name of working directory"
+  as_fn_error "pwd does not report name of working directory"
 
 
 # Find the source files, if location was not specified.
@@ -1288,11 +1288,11 @@ else
 fi
 if test ! -r "$srcdir/$ac_unique_file"; then
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
-  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+  as_fn_error "cannot find sources ($ac_unique_file) in $srcdir"
 fi
 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
 ac_abs_confdir=`(
-	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error "$ac_msg"
 	pwd)`
 # When building in place, set srcdir=.
 if test "$ac_abs_confdir" = "$ac_pwd"; then
@@ -1332,7 +1332,7 @@ Configuration:
       --help=short        display options specific to this package
       --help=recursive    display the short help of all the included packages
   -V, --version           display version information and exit
-  -q, --quiet, --silent   do not print \`checking ...' messages
+  -q, --quiet, --silent   do not print \`checking...' messages
       --cache-file=FILE   cache test results in FILE [disabled]
   -C, --config-cache      alias for \`--cache-file=config.cache'
   -n, --no-create         do not create output files
@@ -1547,9 +1547,9 @@ test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
 unbound configure 1.4.13
-generated by GNU Autoconf 2.66
+generated by GNU Autoconf 2.65
 
-Copyright (C) 2010 Free Software Foundation, Inc.
+Copyright (C) 2009 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -1643,10 +1643,10 @@ fi
 ac_fn_c_check_header_mongrel ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if eval "test \"\${$3+set}\"" = set; then :
+  if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if eval "test \"\${$3+set}\"" = set; then :
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 fi
 eval ac_res=\$$3
@@ -1705,15 +1705,17 @@ $as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
 $as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
 $as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
-( $as_echo "## ---------------------------------------- ##
+( cat <<\_ASBOX
+## ---------------------------------------- ##
 ## Report this to unbound-bugs@nlnetlabs.nl ##
-## ---------------------------------------- ##"
+## ---------------------------------------- ##
+_ASBOX
      ) | sed "s/^/$as_me: WARNING:     /" >&2
     ;;
 esac
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if eval "test \"\${$3+set}\"" = set; then :
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   eval "$3=\$ac_header_compiler"
@@ -1777,7 +1779,7 @@ ac_fn_c_check_header_compile ()
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if eval "test \"\${$3+set}\"" = set; then :
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -1853,7 +1855,7 @@ ac_fn_c_check_func ()
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if eval "test \"\${$3+set}\"" = set; then :
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -1921,7 +1923,7 @@ ac_fn_c_check_type ()
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if eval "test \"\${$3+set}\"" = set; then :
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   eval "$3=no"
@@ -1966,18 +1968,15 @@ $as_echo "$ac_res" >&6; }
 
 } # ac_fn_c_check_type
 
-# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
-# ---------------------------------------------
-# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
-# accordingly.
+# ac_fn_c_check_decl LINENO SYMBOL VAR
+# ------------------------------------
+# Tests whether SYMBOL is declared, setting cache variable VAR accordingly.
 ac_fn_c_check_decl ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  as_decl_name=`echo $2|sed 's/ *(.*//'`
-  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
-$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
-if eval "test \"\${$3+set}\"" = set; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $2 is declared" >&5
+$as_echo_n "checking whether $2 is declared... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -1986,12 +1985,8 @@ $4
 int
 main ()
 {
-#ifndef $as_decl_name
-#ifdef __cplusplus
-  (void) $as_decl_use;
-#else
-  (void) $as_decl_name;
-#endif
+#ifndef $2
+  (void) $2;
 #endif
 
   ;
@@ -2016,7 +2011,7 @@ This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by unbound $as_me 1.4.13, which was
-generated by GNU Autoconf 2.66.  Invocation command line was
+generated by GNU Autoconf 2.65.  Invocation command line was
 
   $ $0 $@
 
@@ -2126,9 +2121,11 @@ trap 'exit_status=$?
   {
     echo
 
-    $as_echo "## ---------------- ##
+    cat <<\_ASBOX
+## ---------------- ##
 ## Cache variables. ##
-## ---------------- ##"
+## ---------------- ##
+_ASBOX
     echo
     # The following way of writing the cache mishandles newlines in values,
 (
@@ -2162,9 +2159,11 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
 )
     echo
 
-    $as_echo "## ----------------- ##
+    cat <<\_ASBOX
+## ----------------- ##
 ## Output variables. ##
-## ----------------- ##"
+## ----------------- ##
+_ASBOX
     echo
     for ac_var in $ac_subst_vars
     do
@@ -2177,9 +2176,11 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
     echo
 
     if test -n "$ac_subst_files"; then
-      $as_echo "## ------------------- ##
+      cat <<\_ASBOX
+## ------------------- ##
 ## File substitutions. ##
-## ------------------- ##"
+## ------------------- ##
+_ASBOX
       echo
       for ac_var in $ac_subst_files
       do
@@ -2193,9 +2194,11 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
     fi
 
     if test -s confdefs.h; then
-      $as_echo "## ----------- ##
+      cat <<\_ASBOX
+## ----------- ##
 ## confdefs.h. ##
-## ----------- ##"
+## ----------- ##
+_ASBOX
       echo
       cat confdefs.h
       echo
@@ -2250,12 +2253,7 @@ _ACEOF
 ac_site_file1=NONE
 ac_site_file2=NONE
 if test -n "$CONFIG_SITE"; then
-  # We do not want a PATH search for config.site.
-  case $CONFIG_SITE in #((
-    -*)  ac_site_file1=./$CONFIG_SITE;;
-    */*) ac_site_file1=$CONFIG_SITE;;
-    *)   ac_site_file1=./$CONFIG_SITE;;
-  esac
+  ac_site_file1=$CONFIG_SITE
 elif test "x$prefix" != xNONE; then
   ac_site_file1=$prefix/share/config.site
   ac_site_file2=$prefix/etc/config.site
@@ -2270,11 +2268,7 @@ do
     { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
 $as_echo "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
-    . "$ac_site_file" \
-      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "failed to load site script $ac_site_file
-See \`config.log' for more details" "$LINENO" 5; }
+    . "$ac_site_file"
   fi
 done
 
@@ -2350,7 +2344,7 @@ if $ac_cache_corrupted; then
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
   { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
 $as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+  as_fn_error "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
 fi
 ## -------------------- ##
 ## Main body of script. ##
@@ -2432,22 +2426,16 @@ _ACEOF
 
 ac_aux_dir=
 for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
-  if test -f "$ac_dir/install-sh"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/install-sh -c"
-    break
-  elif test -f "$ac_dir/install.sh"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/install.sh -c"
-    break
-  elif test -f "$ac_dir/shtool"; then
-    ac_aux_dir=$ac_dir
-    ac_install_sh="$ac_aux_dir/shtool install -c"
-    break
-  fi
+  for ac_t in install-sh install.sh shtool; do
+    if test -f "$ac_dir/$ac_t"; then
+      ac_aux_dir=$ac_dir
+      ac_install_sh="$ac_aux_dir/$ac_t -c"
+      break 2
+    fi
+  done
 done
 if test -z "$ac_aux_dir"; then
-  as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
+  as_fn_error "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
 fi
 
 # These three variables are undocumented and unsupported,
@@ -2461,7 +2449,7 @@ ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
 
 # Make sure we can run config.sub.
 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
-  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+  as_fn_error "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
 $as_echo_n "checking build system type... " >&6; }
@@ -2472,16 +2460,16 @@ else
 test "x$ac_build_alias" = x &&
   ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
 test "x$ac_build_alias" = x &&
-  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+  as_fn_error "cannot guess build type; you must specify one" "$LINENO" 5
 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
-  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+  as_fn_error "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
 
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
 $as_echo "$ac_cv_build" >&6; }
 case $ac_cv_build in
 *-*-*) ;;
-*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
+*) as_fn_error "invalid value of canonical build" "$LINENO" 5;;
 esac
 build=$ac_cv_build
 ac_save_IFS=$IFS; IFS='-'
@@ -2506,7 +2494,7 @@ else
   ac_cv_host=$ac_cv_build
 else
   ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
-    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+    as_fn_error "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
 fi
 
 fi
@@ -2514,7 +2502,7 @@ fi
 $as_echo "$ac_cv_host" >&6; }
 case $ac_cv_host in
 *-*-*) ;;
-*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
+*) as_fn_error "invalid value of canonical host" "$LINENO" 5;;
 esac
 host=$ac_cv_host
 ac_save_IFS=$IFS; IFS='-'
@@ -2539,7 +2527,7 @@ else
   ac_cv_target=$ac_cv_host
 else
   ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
-    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $target_alias failed" "$LINENO" 5
+    as_fn_error "$SHELL $ac_aux_dir/config.sub $target_alias failed" "$LINENO" 5
 fi
 
 fi
@@ -2547,7 +2535,7 @@ fi
 $as_echo "$ac_cv_target" >&6; }
 case $ac_cv_target in
 *-*-*) ;;
-*) as_fn_error $? "invalid value of canonical target" "$LINENO" 5;;
+*) as_fn_error "invalid value of canonical target" "$LINENO" 5;;
 esac
 target=$ac_cv_target
 ac_save_IFS=$IFS; IFS='-'
@@ -2881,8 +2869,8 @@ fi
 
 test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+as_fn_error "no acceptable C compiler found in \$PATH
+See \`config.log' for more details." "$LINENO" 5; }
 
 # Provide some information about the compiler.
 $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
@@ -2996,8 +2984,9 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error 77 "C compiler cannot create executables
-See \`config.log' for more details" "$LINENO" 5; }
+{ as_fn_set_status 77
+as_fn_error "C compiler cannot create executables
+See \`config.log' for more details." "$LINENO" 5; }; }
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
@@ -3039,8 +3028,8 @@ done
 else
   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details" "$LINENO" 5; }
+as_fn_error "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details." "$LINENO" 5; }
 fi
 rm -f conftest conftest$ac_cv_exeext
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
@@ -3097,9 +3086,9 @@ $as_echo "$ac_try_echo"; } >&5
     else
 	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run C compiled programs.
+as_fn_error "cannot run C compiled programs.
 If you meant to cross compile, use \`--host'.
-See \`config.log' for more details" "$LINENO" 5; }
+See \`config.log' for more details." "$LINENO" 5; }
     fi
   fi
 fi
@@ -3150,8 +3139,8 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot compute suffix of object files: cannot compile
-See \`config.log' for more details" "$LINENO" 5; }
+as_fn_error "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details." "$LINENO" 5; }
 fi
 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 fi
@@ -3499,8 +3488,8 @@ if $ac_preproc_ok; then :
 else
   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details" "$LINENO" 5; }
+as_fn_error "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details." "$LINENO" 5; }
 fi
 
 ac_ext=c
@@ -3561,7 +3550,7 @@ esac
   done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_GREP"; then
-    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+    as_fn_error "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_GREP=$GREP
@@ -3627,7 +3616,7 @@ esac
   done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_EGREP"; then
-    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+    as_fn_error "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_EGREP=$EGREP
@@ -3759,7 +3748,8 @@ do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
 "
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+eval as_val=\$$as_ac_Header
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
@@ -4112,7 +4102,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -g" >&5
 $as_echo_n "checking whether $CC supports -g... " >&6; }
 cache=`echo g | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -4143,7 +4133,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -O2" >&5
 $as_echo_n "checking whether $CC supports -O2... " >&6; }
 cache=`echo O2 | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -4469,8 +4459,8 @@ fi
 
 test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5; }
+as_fn_error "no acceptable C compiler found in \$PATH
+See \`config.log' for more details." "$LINENO" 5; }
 
 # Provide some information about the compiler.
 $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
@@ -4733,7 +4723,7 @@ rm -f conftest.c
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Werror" >&5
 $as_echo_n "checking whether $CC supports -Werror... " >&6; }
 cache=`echo Werror | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -4764,7 +4754,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wall" >&5
 $as_echo_n "checking whether $CC supports -Wall... " >&6; }
 cache=`echo Wall | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -4797,7 +4787,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -std=c99" >&5
 $as_echo_n "checking whether $CC supports -std=c99... " >&6; }
 cache=`echo std=c99 | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -4828,7 +4818,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -xc99" >&5
 $as_echo_n "checking whether $CC supports -xc99... " >&6; }
 cache=`echo xc99 | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -4860,7 +4850,8 @@ do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
 "
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+eval as_val=\$$as_ac_Header
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
@@ -4876,7 +4867,7 @@ done
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need $C99FLAG -D__EXTENSIONS__ -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_XOPEN_SOURCE_EXTENDED=1 -D_ALL_SOURCE as a flag for $CC" >&5
 $as_echo_n "checking whether we need $C99FLAG -D__EXTENSIONS__ -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_XOPEN_SOURCE_EXTENDED=1 -D_ALL_SOURCE as a flag for $CC... " >&6; }
 cache=`$as_echo "$C99FLAG -D__EXTENSIONS__ -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_XOPEN_SOURCE_EXTENDED=1 -D_ALL_SOURCE" | $as_tr_sh`
-if eval "test \"\${cv_prog_cc_flag_needed_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_needed_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -4965,7 +4956,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need $C99FLAG -D__EXTENSIONS__ -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_ALL_SOURCE as a flag for $CC" >&5
 $as_echo_n "checking whether we need $C99FLAG -D__EXTENSIONS__ -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_ALL_SOURCE as a flag for $CC... " >&6; }
 cache=`$as_echo "$C99FLAG -D__EXTENSIONS__ -D_BSD_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_ALL_SOURCE" | $as_tr_sh`
-if eval "test \"\${cv_prog_cc_flag_needed_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_needed_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5054,7 +5045,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need $C99FLAG as a flag for $CC" >&5
 $as_echo_n "checking whether we need $C99FLAG as a flag for $CC... " >&6; }
 cache=`$as_echo "$C99FLAG" | $as_tr_sh`
-if eval "test \"\${cv_prog_cc_flag_needed_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_needed_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5118,7 +5109,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need -D_BSD_SOURCE as a flag for $CC" >&5
 $as_echo_n "checking whether we need -D_BSD_SOURCE as a flag for $CC... " >&6; }
 cache=_D_BSD_SOURCE
-if eval "test \"\${cv_prog_cc_flag_needed_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_needed_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5183,7 +5174,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need -D_GNU_SOURCE as a flag for $CC" >&5
 $as_echo_n "checking whether we need -D_GNU_SOURCE as a flag for $CC... " >&6; }
 cache=_D_GNU_SOURCE
-if eval "test \"\${cv_prog_cc_flag_needed_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_needed_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5251,7 +5242,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need -D_GNU_SOURCE -D_FRSRESGID as a flag for $CC" >&5
 $as_echo_n "checking whether we need -D_GNU_SOURCE -D_FRSRESGID as a flag for $CC... " >&6; }
 cache=_D_GNU_SOURCE__D_FRSRESGID
-if eval "test \"\${cv_prog_cc_flag_needed_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_needed_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5315,8 +5306,8 @@ fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need -D_POSIX_C_SOURCE=200112 as a flag for $CC" >&5
 $as_echo_n "checking whether we need -D_POSIX_C_SOURCE=200112 as a flag for $CC... " >&6; }
-cache=`$as_echo "-D_POSIX_C_SOURCE=200112" | $as_tr_sh`
-if eval "test \"\${cv_prog_cc_flag_needed_$cache+set}\"" = set; then :
+cache=_D_POSIX_C_SOURCE_200112
+if { as_var=cv_prog_cc_flag_needed_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5390,7 +5381,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need -D__EXTENSIONS__ as a flag for $CC" >&5
 $as_echo_n "checking whether we need -D__EXTENSIONS__ as a flag for $CC... " >&6; }
 cache=_D__EXTENSIONS__
-if eval "test \"\${cv_prog_cc_flag_needed_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_needed_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5487,7 +5478,7 @@ case "$debug_enabled" in
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -W" >&5
 $as_echo_n "checking whether $CC supports -W... " >&6; }
 cache=`echo W | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5518,7 +5509,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wall" >&5
 $as_echo_n "checking whether $CC supports -Wall... " >&6; }
 cache=`echo Wall | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5549,7 +5540,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wextra" >&5
 $as_echo_n "checking whether $CC supports -Wextra... " >&6; }
 cache=`echo Wextra | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5580,7 +5571,7 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wdeclaration-after-statement" >&5
 $as_echo_n "checking whether $CC supports -Wdeclaration-after-statement... " >&6; }
 cache=`echo Wdeclaration-after-statement | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -5857,7 +5848,7 @@ if test -f lex.yy.c; then
 elif test -f lexyy.c; then
   ac_cv_prog_lex_root=lexyy
 else
-  as_fn_error $? "cannot find output from $LEX; giving up" "$LINENO" 5
+  as_fn_error "cannot find output from $LEX; giving up" "$LINENO" 5
 fi
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_lex_root" >&5
@@ -6232,7 +6223,7 @@ else
 fi
 
 if test $AR = false; then
-	as_fn_error $? "Cannot find 'ar', please extend PATH to include it" "$LINENO" 5
+	as_fn_error "Cannot find 'ar', please extend PATH to include it" "$LINENO" 5
 fi
 
 case `pwd` in
@@ -6386,7 +6377,7 @@ esac
   done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_SED"; then
-    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+    as_fn_error "no acceptable sed could be found in \$PATH" "$LINENO" 5
   fi
 else
   ac_cv_path_SED=$SED
@@ -6465,7 +6456,7 @@ esac
   done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_FGREP"; then
-    as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+    as_fn_error "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_FGREP=$FGREP
@@ -6581,7 +6572,7 @@ else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
-test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+test -z "$LD" && as_fn_error "no acceptable ld found in \$PATH" "$LINENO" 5
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
 $as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
 if test "${lt_cv_prog_gnu_ld+set}" = set; then :
@@ -12701,7 +12692,8 @@ do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
 "
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+eval as_val=\$$as_ac_Header
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
@@ -13225,7 +13217,8 @@ for ac_func in fork vfork
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+eval as_val=\$$as_ac_var
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -13727,8 +13720,8 @@ fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need -D_LARGEFILE_SOURCE=1 as a flag for $CC" >&5
 $as_echo_n "checking whether we need -D_LARGEFILE_SOURCE=1 as a flag for $CC... " >&6; }
-cache=`$as_echo "-D_LARGEFILE_SOURCE=1" | $as_tr_sh`
-if eval "test \"\${cv_prog_cc_flag_needed_$cache+set}\"" = set; then :
+cache=_D_LARGEFILE_SOURCE_1
+if { as_var=cv_prog_cc_flag_needed_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -13804,6 +13797,7 @@ else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
+
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -13828,10 +13822,8 @@ else
 #include <time.h>
 #endif
 
-int
-main ()
+int main(void)
 {
-
 	int port;
 	int sfd, cfd;
 	int num = 10;
@@ -13924,10 +13916,8 @@ main ()
 
 	close(sfd);
 	close(cfd);
-
-  ;
-  return 0;
 }
+
 _ACEOF
 if ac_fn_c_try_run "$LINENO"; then :
 
@@ -14508,7 +14498,7 @@ $as_echo "#define HAVE_SOLARIS_THREADS 1" >>confdefs.h
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -mt" >&5
 $as_echo_n "checking whether $CC supports -mt... " >&6; }
 cache=`echo mt | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_prog_cc_flag_$cache+set}\"" = set; then :
+if { as_var=cv_prog_cc_flag_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -14538,7 +14528,7 @@ fi
 
 else
 
-		as_fn_error $? "no solaris threads found." "$LINENO" 5
+		as_fn_error "no solaris threads found." "$LINENO" 5
 
 fi
 
@@ -14632,7 +14622,7 @@ fi
 
 
         if test -z "$PYTHON"; then
-           as_fn_error $? "Cannot find python$PYTHON_VERSION in your system path" "$LINENO" 5
+           as_fn_error "Cannot find python$PYTHON_VERSION in your system path" "$LINENO" 5
            PYTHON_VERSION=""
         fi
 
@@ -14655,7 +14645,7 @@ $as_echo_n "checking for a version of Python >= '2.1.0'... " >&6; }
 $as_echo "no" >&6; }
                         { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "
+as_fn_error "
 This version of the AC_PYTHON_DEVEL macro
 doesn't work properly with versions of Python before
 2.1.0. You may need to re-run configure, setting the
@@ -14664,7 +14654,7 @@ PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
 Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
 to something else than an empty string.
 
-See \`config.log' for more details" "$LINENO" 5; }
+See \`config.log' for more details." "$LINENO" 5; }
                 else
                         { $as_echo "$as_me:${as_lineno-$LINENO}: result: skip at user request" >&5
 $as_echo "skip at user request" >&6; }
@@ -14689,7 +14679,7 @@ $as_echo "yes" >&6; }
                 else
                         { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
-                        as_fn_error $? "this package requires Python .
+                        as_fn_error "this package requires Python .
 If you have it installed, but it isn't the default Python
 interpreter in your system path, please pass the PYTHON_VERSION
 variable to configure. See \`\`configure --help'' for reference.
@@ -14710,7 +14700,7 @@ $as_echo "yes" >&6; }
         else
                 { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
-                as_fn_error $? "cannot import Python module \"distutils\".
+                as_fn_error "cannot import Python module \"distutils\".
 Please check your Python installation. The error was:
 $ac_distutils_result" "$LINENO" 5
                 PYTHON_VERSION=""
@@ -14845,7 +14835,7 @@ rm -f core conftest.err conftest.$ac_objext \
 $as_echo "$pythonexists" >&6; }
 
         if test ! "$pythonexists" = "yes"; then
-           as_fn_error $? "
+           as_fn_error "
   Could not link test program to Python. Maybe the main Python library has been
   installed in some non-standard library path. If so, pass it to configure,
   via the LDFLAGS environment variable.
@@ -14874,7 +14864,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
    if test ! -z "$PYTHON_VERSION"; then
 	if test `$PYTHON -c "print '$PYTHON_VERSION' >= '2.4.0'"` = "False"; then
-		as_fn_error $? "Python version >= 2.4.0 is required" "$LINENO" 5
+		as_fn_error "Python version >= 2.4.0 is required" "$LINENO" 5
 	fi
 
       # Have Python
@@ -14995,7 +14985,7 @@ $as_echo "$as_me: WARNING: cannot determine SWIG version" >&2;}
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking SWIG" >&5
 $as_echo_n "checking SWIG... " >&6; }
       if test ! -x "$SWIG"; then
-         as_fn_error $? "failed to find swig tool, install it, or do not build Python module and PyUnbound" "$LINENO" 5
+         as_fn_error "failed to find swig tool, install it, or do not build Python module and PyUnbound" "$LINENO" 5
       else
 
 $as_echo "#define HAVE_SWIG 1" >>confdefs.h
@@ -15046,7 +15036,7 @@ else
 fi
 
     if test x_$withval = x_no; then
-	as_fn_error $? "Need SSL library to do digital signature cryptography" "$LINENO" 5
+	as_fn_error "Need SSL library to do digital signature cryptography" "$LINENO" 5
     fi
 
     withval=$withval
@@ -15073,7 +15063,7 @@ _ACEOF
             fi
         done
         if test x_$found_ssl != x_yes; then
-            as_fn_error $? "Cannot find the SSL libraries in $withval" "$LINENO" 5
+            as_fn_error "Cannot find the SSL libraries in $withval" "$LINENO" 5
         else
             { $as_echo "$as_me:${as_lineno-$LINENO}: result: found in $ssldir" >&5
 $as_echo "found in $ssldir" >&6; }
@@ -15185,7 +15175,7 @@ else
 
                         { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
-                    as_fn_error $? "OpenSSL found in $ssldir, but version 0.9.7 or higher is required" "$LINENO" 5
+                    as_fn_error "OpenSSL found in $ssldir, but version 0.9.7 or higher is required" "$LINENO" 5
 
 fi
 rm -f core conftest.err conftest.$ac_objext \
@@ -15429,7 +15419,8 @@ for ac_func in OPENSSL_config EVP_sha1 EVP_sha256 EVP_sha512
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+eval as_val=\$$as_ac_var
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -15528,14 +15519,14 @@ case "$enable_gost" in
 if test "x$ac_cv_func_EVP_PKEY_set_type_str" = x""yes; then :
   :
 else
-  as_fn_error $? "OpenSSL 1.0.0 is needed for GOST support" "$LINENO" 5
+  as_fn_error "OpenSSL 1.0.0 is needed for GOST support" "$LINENO" 5
 fi
 
         ac_fn_c_check_func "$LINENO" "EC_KEY_new" "ac_cv_func_EC_KEY_new"
 if test "x$ac_cv_func_EC_KEY_new" = x""yes; then :
 
 else
-  as_fn_error $? "OpenSSL does not support ECC, needed for GOST support" "$LINENO" 5
+  as_fn_error "OpenSSL does not support ECC, needed for GOST support" "$LINENO" 5
 fi
 
 	use_gost="yes"
@@ -15591,7 +15582,7 @@ $as_echo "found in $thedir" >&6; }
             		LATE_LDFLAGS="build/libevent/*.lo -lm"
 			LDFLAGS="build/libevent/*.o $LDFLAGS -lm"
 		else
-            		as_fn_error $? "Cannot find the libevent library in $withval
+            		as_fn_error "Cannot find the libevent library in $withval
 You can restart ./configure --with-libevent=no to use a builtin alternative.
 Please note that this alternative is not as capable as libevent when using
 large outgoing port ranges.  " "$LINENO" 5
@@ -15906,7 +15897,7 @@ $as_echo "found in $dir" >&6; }
             fi
 done
 if test x_$found_libexpat != x_yes; then
-	as_fn_error $? "Could not find libexpat, expat.h" "$LINENO" 5
+	as_fn_error "Could not find libexpat, expat.h" "$LINENO" 5
 fi
 for ac_header in expat.h
 do :
@@ -16318,7 +16309,7 @@ if test $ac_cv_func_daemon = yes; then
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking if daemon is deprecated" >&5
 $as_echo_n "checking if daemon is deprecated... " >&6; }
 cache=`echo daemon | sed 'y%.=/+-%___p_%'`
-if eval "test \"\${cv_cc_deprecated_$cache+set}\"" = set; then :
+if { as_var=cv_cc_deprecated_$cache; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
 
@@ -16369,8 +16360,8 @@ if test c${cross_compiling} = cno; then
 if test "$cross_compiling" = yes; then :
   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error $? "cannot run test program while cross compiling
-See \`config.log' for more details" "$LINENO" 5; }
+as_fn_error "cannot run test program while cross compiling
+See \`config.log' for more details." "$LINENO" 5; }
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -16481,7 +16472,8 @@ for ac_func in tzset sigprocmask fcntl getpwnam getrlimit setrlimit setsid sbrk
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
-if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+eval as_val=\$$as_ac_var
+   if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
 _ACEOF
@@ -16542,116 +16534,156 @@ if echo $build_os | grep darwin8 > /dev/null; then
 $as_echo "#define DARWIN_BROKEN_SETREUID 1" >>confdefs.h
 
 fi
-ac_fn_c_check_func "$LINENO" "inet_aton" "ac_cv_func_inet_aton"
+for ac_func in inet_aton
+do :
+  ac_fn_c_check_func "$LINENO" "inet_aton" "ac_cv_func_inet_aton"
 if test "x$ac_cv_func_inet_aton" = x""yes; then :
-  $as_echo "#define HAVE_INET_ATON 1" >>confdefs.h
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_INET_ATON 1
+_ACEOF
 
 else
   case " $LIBOBJS " in
-  *" inet_aton.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS inet_aton.$ac_objext"
+  *" $ac_func.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext"
  ;;
 esac
 
 fi
+done
 
 
-ac_fn_c_check_func "$LINENO" "inet_pton" "ac_cv_func_inet_pton"
+for ac_func in inet_pton
+do :
+  ac_fn_c_check_func "$LINENO" "inet_pton" "ac_cv_func_inet_pton"
 if test "x$ac_cv_func_inet_pton" = x""yes; then :
-  $as_echo "#define HAVE_INET_PTON 1" >>confdefs.h
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_INET_PTON 1
+_ACEOF
 
 else
   case " $LIBOBJS " in
-  *" inet_pton.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS inet_pton.$ac_objext"
+  *" $ac_func.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext"
  ;;
 esac
 
 fi
+done
 
 
-ac_fn_c_check_func "$LINENO" "inet_ntop" "ac_cv_func_inet_ntop"
+for ac_func in inet_ntop
+do :
+  ac_fn_c_check_func "$LINENO" "inet_ntop" "ac_cv_func_inet_ntop"
 if test "x$ac_cv_func_inet_ntop" = x""yes; then :
-  $as_echo "#define HAVE_INET_NTOP 1" >>confdefs.h
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_INET_NTOP 1
+_ACEOF
 
 else
   case " $LIBOBJS " in
-  *" inet_ntop.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS inet_ntop.$ac_objext"
+  *" $ac_func.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext"
  ;;
 esac
 
 fi
+done
 
 
-ac_fn_c_check_func "$LINENO" "snprintf" "ac_cv_func_snprintf"
+for ac_func in snprintf
+do :
+  ac_fn_c_check_func "$LINENO" "snprintf" "ac_cv_func_snprintf"
 if test "x$ac_cv_func_snprintf" = x""yes; then :
-  $as_echo "#define HAVE_SNPRINTF 1" >>confdefs.h
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SNPRINTF 1
+_ACEOF
 
 else
   case " $LIBOBJS " in
-  *" snprintf.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS snprintf.$ac_objext"
+  *" $ac_func.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext"
  ;;
 esac
 
 fi
+done
 
 
-ac_fn_c_check_func "$LINENO" "strlcpy" "ac_cv_func_strlcpy"
+for ac_func in strlcpy
+do :
+  ac_fn_c_check_func "$LINENO" "strlcpy" "ac_cv_func_strlcpy"
 if test "x$ac_cv_func_strlcpy" = x""yes; then :
-  $as_echo "#define HAVE_STRLCPY 1" >>confdefs.h
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_STRLCPY 1
+_ACEOF
 
 else
   case " $LIBOBJS " in
-  *" strlcpy.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS strlcpy.$ac_objext"
+  *" $ac_func.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext"
  ;;
 esac
 
 fi
+done
 
 
-ac_fn_c_check_func "$LINENO" "memmove" "ac_cv_func_memmove"
+for ac_func in memmove
+do :
+  ac_fn_c_check_func "$LINENO" "memmove" "ac_cv_func_memmove"
 if test "x$ac_cv_func_memmove" = x""yes; then :
-  $as_echo "#define HAVE_MEMMOVE 1" >>confdefs.h
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_MEMMOVE 1
+_ACEOF
 
 else
   case " $LIBOBJS " in
-  *" memmove.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS memmove.$ac_objext"
+  *" $ac_func.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext"
  ;;
 esac
 
 fi
+done
 
 
-ac_fn_c_check_func "$LINENO" "gmtime_r" "ac_cv_func_gmtime_r"
+for ac_func in gmtime_r
+do :
+  ac_fn_c_check_func "$LINENO" "gmtime_r" "ac_cv_func_gmtime_r"
 if test "x$ac_cv_func_gmtime_r" = x""yes; then :
-  $as_echo "#define HAVE_GMTIME_R 1" >>confdefs.h
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_GMTIME_R 1
+_ACEOF
 
 else
   case " $LIBOBJS " in
-  *" gmtime_r.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS gmtime_r.$ac_objext"
+  *" $ac_func.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext"
  ;;
 esac
 
 fi
+done
 
 
-ac_fn_c_check_func "$LINENO" "ctime_r" "ac_cv_func_ctime_r"
+for ac_func in ctime_r
+do :
+  ac_fn_c_check_func "$LINENO" "ctime_r" "ac_cv_func_ctime_r"
 if test "x$ac_cv_func_ctime_r" = x""yes; then :
-  $as_echo "#define HAVE_CTIME_R 1" >>confdefs.h
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_CTIME_R 1
+_ACEOF
 
 else
   case " $LIBOBJS " in
-  *" ctime_r.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS ctime_r.$ac_objext"
+  *" $ac_func.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS $ac_func.$ac_objext"
  ;;
 esac
 
 fi
+done
 
 
 
@@ -16741,7 +16773,7 @@ _ACEOF
 
 else
 
-	as_fn_error $? "No ldns library found, install the ldns library into system lib dir or use --with-ldns=path to other location.  The --with-ldns can point to the make-dir of ldns.  Install the package ldns or download source http://www.nlnetlabs.nl/projects/ldns" "$LINENO" 5
+	as_fn_error "No ldns library found, install the ldns library into system lib dir or use --with-ldns=path to other location.  The --with-ldns can point to the make-dir of ldns.  Install the package ldns or download source http://www.nlnetlabs.nl/projects/ldns" "$LINENO" 5
 
 fi
 
@@ -16816,7 +16848,7 @@ _ACEOF
 
 else
 
-	as_fn_error $? "No ldns include file found, install the ldns library development files.  Install package ldns-dev or ldns-devel or download source http://www.nlnetlabs.nl/projects/ldns" "$LINENO" 5
+	as_fn_error "No ldns include file found, install the ldns library development files.  Install package ldns-dev or ldns-devel or download source http://www.nlnetlabs.nl/projects/ldns" "$LINENO" 5
 
 fi
 
@@ -16830,7 +16862,7 @@ if test $ac_cv_func_ldns_buffer_copy = yes \
     -a $ac_cv_func_ldns_key_EVP_load_gost_id = yes; then
         :
 else
-    as_fn_error $? "ldns library is not recent, update the ldns library, install it into system lib dir or use --with-ldns=path to other location.  The --with-ldns can point to the make-dir of ldns.  Package libldns or download source http://www.nlnetlabs.nl/projects/ldns" "$LINENO" 5
+    as_fn_error "ldns library is not recent, update the ldns library, install it into system lib dir or use --with-ldns=path to other location.  The --with-ldns can point to the make-dir of ldns.  Package libldns or download source http://www.nlnetlabs.nl/projects/ldns" "$LINENO" 5
 fi
 
 
@@ -16998,7 +17030,6 @@ DEFS=-DHAVE_CONFIG_H
 
 ac_libobjs=
 ac_ltlibobjs=
-U=
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
@@ -17160,19 +17191,19 @@ export LANGUAGE
 (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 
 
-# as_fn_error STATUS ERROR [LINENO LOG_FD]
-# ----------------------------------------
+# as_fn_error ERROR [LINENO LOG_FD]
+# ---------------------------------
 # Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
 # provided, also output the error to LOG_FD, referencing LINENO. Then exit the
-# script with STATUS, using 1 if that was 0.
+# script with status $?, using 1 if that was 0.
 as_fn_error ()
 {
-  as_status=$1; test $as_status -eq 0 && as_status=1
-  if test "$4"; then
-    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  as_status=$?; test $as_status -eq 0 && as_status=1
+  if test "$3"; then
+    as_lineno=${as_lineno-"$2"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $1" >&$3
   fi
-  $as_echo "$as_me: error: $2" >&2
+  $as_echo "$as_me: error: $1" >&2
   as_fn_exit $as_status
 } # as_fn_error
 
@@ -17368,7 +17399,7 @@ $as_echo X"$as_dir" |
       test -d "$as_dir" && break
     done
     test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+  } || test -d "$as_dir" || as_fn_error "cannot create directory $as_dir"
 
 
 } # as_fn_mkdir_p
@@ -17422,7 +17453,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # values after options handling.
 ac_log="
 This file was extended by unbound $as_me 1.4.13, which was
-generated by GNU Autoconf 2.66.  Invocation command line was
+generated by GNU Autoconf 2.65.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -17488,10 +17519,10 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
 unbound config.status 1.4.13
-configured by $0, generated by GNU Autoconf 2.66,
+configured by $0, generated by GNU Autoconf 2.65,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2010 Free Software Foundation, Inc.
+Copyright (C) 2009 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -17545,7 +17576,7 @@ do
     ac_need_defaults=false;;
   --he | --h)
     # Conflict between --help and --header
-    as_fn_error $? "ambiguous option: \`$1'
+    as_fn_error "ambiguous option: \`$1'
 Try \`$0 --help' for more information.";;
   --help | --hel | -h )
     $as_echo "$ac_cs_usage"; exit ;;
@@ -17554,7 +17585,7 @@ Try \`$0 --help' for more information.";;
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) as_fn_error $? "unrecognized option: \`$1'
+  -*) as_fn_error "unrecognized option: \`$1'
 Try \`$0 --help' for more information." ;;
 
   *) as_fn_append ac_config_targets " $1"
@@ -17879,7 +17910,7 @@ do
     "doc/unbound-control.8") CONFIG_FILES="$CONFIG_FILES doc/unbound-control.8" ;;
     "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
 
-  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  *) as_fn_error "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -17917,7 +17948,7 @@ $debug ||
 {
   tmp=./conf$$-$RANDOM
   (umask 077 && mkdir "$tmp")
-} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+} || as_fn_error "cannot create a temporary directory in ." "$LINENO" 5
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
@@ -17934,7 +17965,7 @@ if test "x$ac_cr" = x; then
 fi
 ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
 if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
-  ac_cs_awk_cr='\\r'
+  ac_cs_awk_cr='\r'
 else
   ac_cs_awk_cr=$ac_cr
 fi
@@ -17948,18 +17979,18 @@ _ACEOF
   echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
   echo "_ACEOF"
 } >conf$$subs.sh ||
-  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
-ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+  as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '$'`
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   . ./conf$$subs.sh ||
-    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+    as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
 
   ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
   if test $ac_delim_n = $ac_delim_num; then
     break
   elif $ac_last_try; then
-    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+    as_fn_error "could not make $CONFIG_STATUS" "$LINENO" 5
   else
     ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
   fi
@@ -18048,28 +18079,20 @@ if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
 else
   cat
 fi < "$tmp/subs1.awk" > "$tmp/subs.awk" \
-  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+  || as_fn_error "could not setup config files machinery" "$LINENO" 5
 _ACEOF
 
-# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
-# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# VPATH may cause trouble with some makes, so we remove $(srcdir),
+# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
 # trailing colons and then remove the whole line if VPATH becomes empty
 # (actually we leave an empty line to preserve line numbers).
 if test "x$srcdir" = x.; then
-  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
-h
-s///
-s/^/:/
-s/[	 ]*$/:/
-s/:\$(srcdir):/:/g
-s/:\${srcdir}:/:/g
-s/:@srcdir@:/:/g
-s/^:*//
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=/{
+s/:*\$(srcdir):*/:/
+s/:*\${srcdir}:*/:/
+s/:*@srcdir@:*/:/
+s/^\([^=]*=[	 ]*\):*/\1/
 s/:*$//
-x
-s/\(=[	 ]*\).*/\1/
-G
-s/\n//
 s/^[^=]*=[	 ]*$//
 }'
 fi
@@ -18097,7 +18120,7 @@ for ac_last_try in false false :; do
   if test -z "$ac_t"; then
     break
   elif $ac_last_try; then
-    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
+    as_fn_error "could not make $CONFIG_HEADERS" "$LINENO" 5
   else
     ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
   fi
@@ -18182,7 +18205,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 _ACAWK
 _ACEOF
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
+  as_fn_error "could not setup config headers machinery" "$LINENO" 5
 fi # test -n "$CONFIG_HEADERS"
 
 
@@ -18195,7 +18218,7 @@ do
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :L* | :C*:*) as_fn_error "invalid tag \`$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -18223,7 +18246,7 @@ do
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+	   as_fn_error "cannot find input file: \`$ac_f'" "$LINENO" 5;;
       esac
       case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
       as_fn_append ac_file_inputs " '$ac_f'"
@@ -18250,7 +18273,7 @@ $as_echo "$as_me: creating $ac_file" >&6;}
 
     case $ac_tag in
     *:-:* | *:-) cat >"$tmp/stdin" \
-      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+      || as_fn_error "could not create $ac_file" "$LINENO" 5 ;;
     esac
     ;;
   esac
@@ -18376,22 +18399,22 @@ s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
 $ac_datarootdir_hack
 "
 eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$tmp/subs.awk" >$tmp/out \
-  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+  || as_fn_error "could not create $ac_file" "$LINENO" 5
 
 test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
   { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } &&
   { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' "$tmp/out"`; test -z "$ac_out"; } &&
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined" >&5
+which seems to be undefined.  Please make sure it is defined." >&5
 $as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined" >&2;}
+which seems to be undefined.  Please make sure it is defined." >&2;}
 
   rm -f "$tmp/stdin"
   case $ac_file in
   -) cat "$tmp/out" && rm -f "$tmp/out";;
   *) rm -f "$ac_file" && mv "$tmp/out" "$ac_file";;
   esac \
-  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+  || as_fn_error "could not create $ac_file" "$LINENO" 5
  ;;
   :H)
   #
@@ -18402,19 +18425,19 @@ which seems to be undefined.  Please make sure it is defined" >&2;}
       $as_echo "/* $configure_input  */" \
       && eval '$AWK -f "$tmp/defines.awk"' "$ac_file_inputs"
     } >"$tmp/config.h" \
-      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+      || as_fn_error "could not create $ac_file" "$LINENO" 5
     if diff "$ac_file" "$tmp/config.h" >/dev/null 2>&1; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
 $as_echo "$as_me: $ac_file is unchanged" >&6;}
     else
       rm -f "$ac_file"
       mv "$tmp/config.h" "$ac_file" \
-	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
+	|| as_fn_error "could not create $ac_file" "$LINENO" 5
     fi
   else
     $as_echo "/* $configure_input  */" \
       && eval '$AWK -f "$tmp/defines.awk"' "$ac_file_inputs" \
-      || as_fn_error $? "could not create -" "$LINENO" 5
+      || as_fn_error "could not create -" "$LINENO" 5
   fi
  ;;
 
@@ -19082,7 +19105,7 @@ _ACEOF
 ac_clean_files=$ac_clean_files_save
 
 test $ac_write_fail = 0 ||
-  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+  as_fn_error "write failure creating $CONFIG_STATUS" "$LINENO" 5
 
 
 # configure is writing to config.log, and then calls config.status.
@@ -19103,7 +19126,7 @@ if test "$no_create" != yes; then
   exec 5>>config.log
   # Use ||, not &&, to avoid exiting from the if with $? = 1, which
   # would make configure fail if this is the last instruction.
-  $ac_cs_success || as_fn_exit 1
+  $ac_cs_success || as_fn_exit $?
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
diff --git a/configure.ac b/configure.ac
index 62b173107..d9e6ba35d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -299,13 +299,13 @@ if test "$on_mingw" = "yes"; then
 # check windows threads
 	AC_CHECK_HEADERS([windows.h],,, [AC_INCLUDES_DEFAULT])
 	AC_MSG_CHECKING([for CreateThread])
-	AC_TRY_COMPILE([
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
 #ifdef HAVE_WINDOWS_H
 #include <windows.h>
 #endif
 ], [
 	HANDLE t = CreateThread(NULL, 0, NULL, NULL, 0, NULL);
-],
+])],
 	AC_MSG_RESULT(yes)
 	AC_DEFINE(HAVE_WINDOWS_THREADS, 1, [Using Windows threads])
 ,	
@@ -663,13 +663,13 @@ AC_DEFUN([AC_CHECK_STRPTIME_WORKS],
 [AC_REQUIRE([AC_PROG_CC])
 AC_MSG_CHECKING(whether strptime works)
 if test c${cross_compiling} = cno; then
-AC_TRY_RUN([
+AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #define _XOPEN_SOURCE
 #include <time.h>
 int main(void) { struct tm tm; char *res;
 res = strptime("20070207111842", "%Y%m%d%H%M%S", &tm);
 if (!res) return 1; return 0; }
-] , [eval "ac_cv_c_strptime_works=yes"], [eval "ac_cv_c_strptime_works=no"])
+]])] , [eval "ac_cv_c_strptime_works=yes"], [eval "ac_cv_c_strptime_works=no"])
 else
 eval "ac_cv_c_strptime_works=maybe"
 fi
diff --git a/doc/Changelog b/doc/Changelog
index f7867c8c1..84a45dca4 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,3 +1,6 @@
+1 August 2011: Wouter
+	- Fix autoconf 2.68 warnings
+
 14 July 2011: Wouter
 	- Unbound implements RFC6303 (since version 1.4.7).
 	- tag 1.4.12rc1 is released as 1.4.12 (without the other fixes in the