MFH (r266114, r266138): upgrade to latest ldns and unbound

MFH (r266139-r266143, r266145, r266149, r266150): fix props
MFH (r266179, r266180, r266193, r266238, r266777): misc cleanup
MFH (r266863): create and use /var/unbound/conf.d
MFH (r268839): import unblock-lan-zones patch from upstream
MFH (r268840): fix reverse lookups on private networks
MFH (r268883): avoid spamming source tree during build

PR:		190739 (for r268883)

1 files changed, 474 insertions, 288 deletions

diff --git a/contrib/unbound/configure b/contrib/unbound/configure
index 8d3a181..5672b39 100755
--- a/contrib/unbound/configure
+++ b/contrib/unbound/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for unbound 1.4.20.
+# Generated by GNU Autoconf 2.69 for unbound 1.4.22.
 #
 # Report bugs to <unbound-bugs@nlnetlabs.nl>.
 #
@@ -590,8 +590,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='unbound'
 PACKAGE_TARNAME='unbound'
-PACKAGE_VERSION='1.4.20'
-PACKAGE_STRING='unbound 1.4.20'
+PACKAGE_VERSION='1.4.22'
+PACKAGE_STRING='unbound 1.4.22'
 PACKAGE_BUGREPORT='unbound-bugs@nlnetlabs.nl'
 PACKAGE_URL=''
 
@@ -632,7 +632,7 @@ ac_includes_default="\
 #endif"
 
 ac_subst_vars='LTLIBOBJS
-ldnsdir
+INSTALLTARGET
 ALLTARGET
 SOURCEFILE
 SOURCEDETERMINE
@@ -651,6 +651,8 @@ WINAPPS
 WINDRES
 CHECKLOCK_OBJ
 staticexe
+UNBOUND_EVENT_UNINSTALL
+UNBOUND_EVENT_INSTALL
 HAVE_SSL
 CONFIG_DATE
 NETBSD_LINTFLAGS
@@ -677,7 +679,7 @@ PYTHON_VERSION
 PTHREAD_CFLAGS
 PTHREAD_LIBS
 PTHREAD_CC
-acx_pthread_config
+ax_pthread_config
 RUNTIME_PATH
 LIBOBJS
 OTOOL64
@@ -739,6 +741,9 @@ CC
 LIBUNBOUND_AGE
 LIBUNBOUND_REVISION
 LIBUNBOUND_CURRENT
+UNBOUND_VERSION_MICRO
+UNBOUND_VERSION_MINOR
+UNBOUND_VERSION_MAJOR
 target_alias
 host_alias
 build_alias
@@ -790,6 +795,7 @@ with_rootcert_file
 with_username
 enable_checking
 enable_debug
+enable_flto
 enable_shared
 enable_static
 with_pic
@@ -811,13 +817,13 @@ with_ssl
 enable_sha2
 enable_gost
 enable_ecdsa
+enable_event_api
 with_libevent
 with_libexpat
 enable_static_exe
 enable_lock_checks
 enable_allsymbols
 with_libunbound_only
-with_ldns
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1371,7 +1377,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures unbound 1.4.20 to adapt to many kinds of systems.
+\`configure' configures unbound 1.4.22 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1436,7 +1442,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of unbound 1.4.20:";;
+     short | recursive ) echo "Configuration of unbound 1.4.22:";;
    esac
   cat <<\_ACEOF
 
@@ -1446,6 +1452,7 @@ Optional Features:
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --enable-checking       Enable warnings, asserts, makefile-dependencies
   --enable-debug          same as enable-checking
+  --disable-flto          Disable link-time optimization (gcc specific option)
   --enable-shared[=PKGS]  build shared libraries [default=yes]
   --enable-static[=PKGS]  build static libraries [default=yes]
   --enable-fast-install[=PKGS]
@@ -1464,8 +1471,10 @@ Optional Features:
   --disable-sha2          Disable SHA256 and SHA512 RRSIG support
   --disable-gost          Disable GOST support
   --disable-ecdsa         Disable ECDSA support
+  --enable-event-api      Enable (experimental) libevent-based libunbound API
+                          installed to unbound-event.h
   --enable-static-exe     enable to compile executables statically against
-                          event, ldns libs, for debug purposes
+                          (event) libs, for debug purposes
   --enable-lock-checks    enable to check lock and unlock calls, for debug
                           purposes
   --enable-allsymbols     export all symbols from libunbound and link binaries
@@ -1516,7 +1525,6 @@ Optional Packages:
                           outgoing port ranges.
   --with-libexpat=path    specify explicit path for libexpat.
   --with-libunbound-only  do not build daemon and tool programs
-  --with-ldns=PATH        specify prefix of path of ldns library to use
 
 Some influential environment variables:
   CC          C compiler command
@@ -1604,7 +1612,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-unbound configure 1.4.20
+unbound configure 1.4.22
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2024,6 +2032,189 @@ $as_echo "$ac_res" >&6; }
 
 } # ac_fn_c_check_type
 
+# ac_fn_c_compute_int LINENO EXPR VAR INCLUDES
+# --------------------------------------------
+# Tries to find the compile-time value of EXPR in a program that includes
+# INCLUDES, setting VAR accordingly. Returns whether the value could be
+# computed
+ac_fn_c_compute_int ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if test "$cross_compiling" = yes; then
+    # Depending upon the size, compute the lo and hi bounds.
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) >= 0)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) <= $ac_mid)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=$ac_mid; break
+else
+  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
+			if test $ac_lo -le $ac_mid; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) < 0)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) >= $ac_mid)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_lo=$ac_mid; break
+else
+  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
+			if test $ac_mid -le $ac_hi; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  ac_lo= ac_hi=
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+# Binary search between lo and hi bounds.
+while test "x$ac_lo" != "x$ac_hi"; do
+  as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) <= $ac_mid)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=$ac_mid
+else
+  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+case $ac_lo in #((
+?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
+'') ac_retval=1 ;;
+esac
+  else
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+static long int longval () { return $2; }
+static unsigned long int ulongval () { return $2; }
+#include <stdio.h>
+#include <stdlib.h>
+int
+main ()
+{
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    return 1;
+  if (($2) < 0)
+    {
+      long int i = longval ();
+      if (i != ($2))
+	return 1;
+      fprintf (f, "%ld", i);
+    }
+  else
+    {
+      unsigned long int i = ulongval ();
+      if (i != ($2))
+	return 1;
+      fprintf (f, "%lu", i);
+    }
+  /* Do not output a trailing newline, as this causes \r\n confusion
+     on some platforms.  */
+  return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  echo >>conftest.val; read $3 <conftest.val; ac_retval=0
+else
+  ac_retval=1
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f conftest.val
+
+  fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_compute_int
+
 # ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
 # ---------------------------------------------
 # Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
@@ -2130,7 +2321,7 @@ cat >config.log <<_ACEOF
 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 1.4.20, which was
+It was created by unbound $as_me 1.4.22, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2478,10 +2669,16 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
+UNBOUND_VERSION_MAJOR=1
 
-LIBUNBOUND_CURRENT=3
-LIBUNBOUND_REVISION=5
-LIBUNBOUND_AGE=1
+UNBOUND_VERSION_MINOR=4
+
+UNBOUND_VERSION_MICRO=22
+
+
+LIBUNBOUND_CURRENT=4
+LIBUNBOUND_REVISION=1
+LIBUNBOUND_AGE=2
 # 1.0.0 had 0:12:0
 # 1.0.1 had 0:13:0
 # 1.0.2 had 0:14:0
@@ -2516,7 +2713,8 @@ LIBUNBOUND_AGE=1
 # 1.4.17 had 3:2:1
 # 1.4.18 had 3:3:1
 # 1.4.19 had 3:4:1
-# 1.4.20 had 4:0:2 # adds libunbound.ttl
+# 1.4.20 had 4:0:2 # adds libunbound.ttl # but shipped 3:5:1
+# 1.4.21 had 4:1:2
 
 #   Current  -- the number of the binary API that we're implementing
 #   Revision -- which iteration of the implementation of the binary
@@ -3790,6 +3988,11 @@ $as_echo "$ac_cv_safe_to_define___extensions__" >&6; }
 
 
 
+if test "$ac_cv_header_minix_config_h" = "yes"; then
+
+$as_echo "#define _NETBSD_SOURCE 1" >>confdefs.h
+
+fi
 
 case "$prefix" in
         NONE)
@@ -3971,7 +4174,7 @@ _ACEOF
 
 $as_echo "#define WINVER 0x0502" >>confdefs.h
 
-wnvs=`echo $PACKAGE_VERSION | sed -e 's/^[^0-9]*\([0-9]\)[^0-9]*\([0-9]\)[^0-9]*\([0-9]\)[^0-9]*\([0-9]\).*$/\1,\2,\3,\4/' -e 's/^[^0-9]*\([0-9]\)[^0-9]*\([0-9]\)[^0-9]*\([0-9]\)[^0-9]*$/\1,\2,\3,0/' `
+wnvs=`echo $PACKAGE_VERSION | sed -e 's/^[^0-9]*\([0-9][0-9]*\)[^0-9][^0-9]*\([0-9][0-9]*\)[^0-9][^0-9]*\([0-9][0-9]*\)[^0-9][^0-9]*\([0-9][0-9]*\).*$/\1,\2,\3,\4/' -e 's/^[^0-9]*\([0-9][0-9]*\)[^0-9][^0-9]*\([0-9][0-9]*\)[^0-9][^0-9]*\([0-9][0-9]*\)[^0-9]*$/\1,\2,\3,0/' `
 
 
 cat >>confdefs.h <<_ACEOF
@@ -4078,7 +4281,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -g -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -4109,7 +4312,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -O2 -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -4699,7 +4902,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -Werror -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -4730,7 +4933,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -Wall -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -4763,7 +4966,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -std=c99 -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -4794,7 +4997,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -xc99 -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -5461,7 +5664,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -W -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -5492,7 +5695,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -Wall -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -5523,7 +5726,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -Wextra -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -5554,7 +5757,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -Wdeclaration-after-statement -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -5584,11 +5787,19 @@ $as_echo "#define UNBOUND_DEBUG /**/" >>confdefs.h
 		# nothing to do.
 		;;
 esac
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -flto" >&5
+
+    # Check whether --enable-flto was given.
+if test "${enable_flto+set}" = set; then :
+  enableval=$enable_flto;
+fi
+
+    if test "x$enable_flto" != "xno"; then :
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -flto" >&5
 $as_echo_n "checking if $CC supports -flto... " >&6; }
-BAKCFLAGS="$CFLAGS"
-CFLAGS="$CFLAGS -flto"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+        BAKCFLAGS="$CFLAGS"
+        CFLAGS="$CFLAGS -flto"
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -5601,15 +5812,15 @@ main ()
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
 
-    if $CC $CFLAGS -o conftest conftest.c 2>&1 | grep "warning: no debug symbols in executable" >/dev/null; then
-	CFLAGS="$BAKCFLAGS"
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+            if $CC $CFLAGS -o conftest conftest.c 2>&1 | grep "warning: no debug symbols in executable" >/dev/null; then
+                CFLAGS="$BAKCFLAGS"
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
-    else
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+            else
+                { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
-    fi
-    rm -f conftest conftest.c conftest.o
+            fi
+            rm -f conftest conftest.c conftest.o
 
 else
   CFLAGS="$BAKCFLAGS" ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
@@ -5618,6 +5829,8 @@ fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
+fi
+
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for inline" >&5
 $as_echo_n "checking for inline... " >&6; }
@@ -13793,6 +14006,53 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
 fi
 
 
+# The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of time_t" >&5
+$as_echo_n "checking size of time_t... " >&6; }
+if ${ac_cv_sizeof_time_t+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (time_t))" "ac_cv_sizeof_time_t"        "
+$ac_includes_default
+#ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# ifdef HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
+"; then :
+
+else
+  if test "$ac_cv_type_time_t" = 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 77 "cannot compute sizeof (time_t)
+See \`config.log' for more details" "$LINENO" 5; }
+   else
+     ac_cv_sizeof_time_t=0
+   fi
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_time_t" >&5
+$as_echo "$ac_cv_sizeof_time_t" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define SIZEOF_TIME_T $ac_cv_sizeof_time_t
+_ACEOF
+
+
+
 # add option to disable the evil rpath
 
 # Check whether --enable-rpath was given.
@@ -15002,14 +15262,13 @@ ub_have_pthreads=no
 if test x_$withval != x_no; then
 
 
-
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-acx_pthread_ok=no
+ax_pthread_ok=no
 
 # We used to check for pthread.h first, but this fails if pthread.h
 # requires special compiler flags (e.g. on True64 or Sequent).
@@ -15044,13 +15303,13 @@ return pthread_join ();
 }
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
-  acx_pthread_ok=yes
+  ax_pthread_ok=yes
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_ok" >&5
-$as_echo "$acx_pthread_ok" >&6; }
-        if test x"$acx_pthread_ok" = xno; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5
+$as_echo "$ax_pthread_ok" >&6; }
+        if test x"$ax_pthread_ok" = xno; then
                 PTHREAD_LIBS=""
                 PTHREAD_CFLAGS=""
         fi
@@ -15068,7 +15327,7 @@ fi
 # which indicates that we try without any flags at all, and "pthread-config"
 # which is a program returning the flags for the Pth emulation library.
 
-acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
 
 # The ordering *is* (sometimes) important.  Some notes on the
 # individual items follow:
@@ -15090,8 +15349,8 @@ acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -m
 # --thread-safe: KAI C++
 # pthread-config: use pthread-config program (for GNU Pth library)
 
-case "${host_cpu}-${host_os}" in
-        *solaris*)
+case ${host_os} in
+        solaris*)
 
         # On Solaris (at least, for some versions), libc contains stubbed
         # (non-functional) versions of the pthreads routines, so link-based
@@ -15101,12 +15360,16 @@ case "${host_cpu}-${host_os}" in
         # who knows whether they'll stub that too in a future libc.)  So,
         # we'll just look for -pthreads and -lpthread first:
 
-        acx_pthread_flags="-pthreads pthread -mt -pthread $acx_pthread_flags"
+        ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
+        ;;
+
+        darwin*)
+        ax_pthread_flags="-pthread $ax_pthread_flags"
         ;;
 esac
 
-if test x"$acx_pthread_ok" = xno; then
-for flag in $acx_pthread_flags; do
+if test x"$ax_pthread_ok" = xno; then
+for flag in $ax_pthread_flags; do
 
         case $flag in
                 none)
@@ -15120,16 +15383,16 @@ $as_echo_n "checking whether pthreads work with $flag... " >&6; }
                 PTHREAD_CFLAGS="$flag"
                 ;;
 
-		pthread-config)
-		# Extract the first word of "pthread-config", so it can be a program name with args.
+                pthread-config)
+                # Extract the first word of "pthread-config", so it can be a program name with args.
 set dummy pthread-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_acx_pthread_config+:} false; then :
+if ${ac_cv_prog_ax_pthread_config+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  if test -n "$acx_pthread_config"; then
-  ac_cv_prog_acx_pthread_config="$acx_pthread_config" # Let the user override the test.
+  if test -n "$ax_pthread_config"; then
+  ac_cv_prog_ax_pthread_config="$ax_pthread_config" # Let the user override the test.
 else
 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
@@ -15138,7 +15401,7 @@ do
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
   if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_acx_pthread_config="yes"
+    ac_cv_prog_ax_pthread_config="yes"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
@@ -15146,23 +15409,23 @@ done
   done
 IFS=$as_save_IFS
 
-  test -z "$ac_cv_prog_acx_pthread_config" && ac_cv_prog_acx_pthread_config="no"
+  test -z "$ac_cv_prog_ax_pthread_config" && ac_cv_prog_ax_pthread_config="no"
 fi
 fi
-acx_pthread_config=$ac_cv_prog_acx_pthread_config
-if test -n "$acx_pthread_config"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_config" >&5
-$as_echo "$acx_pthread_config" >&6; }
+ax_pthread_config=$ac_cv_prog_ax_pthread_config
+if test -n "$ax_pthread_config"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_config" >&5
+$as_echo "$ax_pthread_config" >&6; }
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
 
-		if test x"$acx_pthread_config" = xno; then continue; fi
-		PTHREAD_CFLAGS="`pthread-config --cflags`"
-		PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
-		;;
+                if test x"$ax_pthread_config" = xno; then continue; fi
+                PTHREAD_CFLAGS="`pthread-config --cflags`"
+                PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
+                ;;
 
                 *)
                 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$flag" >&5
@@ -15188,18 +15451,23 @@ $as_echo_n "checking for the pthreads library -l$flag... " >&6; }
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
+                        static void routine(void *a) { *((int*)a) = 0; }
+                        static void *start_routine(void *a) { return a; }
 int
 main ()
 {
-pthread_t th; pthread_join(th, 0);
-                     pthread_attr_init(0); pthread_cleanup_push(0, 0);
-                     pthread_create(0,0,0,0); pthread_cleanup_pop(0);
+pthread_t th; pthread_attr_t attr;
+                        pthread_create(&th, 0, start_routine, 0);
+                        pthread_join(th, 0);
+                        pthread_attr_init(&attr);
+                        pthread_cleanup_push(routine, 0);
+                        pthread_cleanup_pop(0) /* ; */
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
-  acx_pthread_ok=yes
+  ax_pthread_ok=yes
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
@@ -15207,9 +15475,9 @@ rm -f core conftest.err conftest.$ac_objext \
         LIBS="$save_LIBS"
         CFLAGS="$save_CFLAGS"
 
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_pthread_ok" >&5
-$as_echo "$acx_pthread_ok" >&6; }
-        if test "x$acx_pthread_ok" = xyes; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5
+$as_echo "$ax_pthread_ok" >&6; }
+        if test "x$ax_pthread_ok" = xyes; then
                 break;
         fi
 
@@ -15219,24 +15487,24 @@ done
 fi
 
 # Various other checks:
-if test "x$acx_pthread_ok" = xyes; then
+if test "x$ax_pthread_ok" = xyes; then
         save_LIBS="$LIBS"
         LIBS="$PTHREAD_LIBS $LIBS"
         save_CFLAGS="$CFLAGS"
         CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
 
         # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5
 $as_echo_n "checking for joinable pthread attribute... " >&6; }
-	attr_name=unknown
-	for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
-	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+        attr_name=unknown
+        for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+            cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
 int
 main ()
 {
-int attr=$attr; return attr;
+int attr = $attr; return attr /* ; */
   ;
   return 0;
 }
@@ -15246,7 +15514,7 @@ if ac_fn_c_try_link "$LINENO"; then :
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
-	done
+        done
         { $as_echo "$as_me:${as_lineno-$LINENO}: result: $attr_name" >&5
 $as_echo "$attr_name" >&6; }
         if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
@@ -15260,9 +15528,16 @@ _ACEOF
         { $as_echo "$as_me:${as_lineno-$LINENO}: checking if more special flags are required for pthreads" >&5
 $as_echo_n "checking if more special flags are required for pthreads... " >&6; }
         flag=no
-        case "${host_cpu}-${host_os}" in
-            *-aix* | *-freebsd* | *-darwin*) flag="-D_THREAD_SAFE";;
-            *solaris* | *-osf* | *-hpux*) flag="-D_REENTRANT";;
+        case ${host_os} in
+            aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
+            osf* | hpux*) flag="-D_REENTRANT";;
+            solaris*)
+            if test "$GCC" = "yes"; then
+                flag="-D_REENTRANT"
+            else
+                flag="-mt -D_REENTRANT"
+            fi
+            ;;
         esac
         { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${flag}" >&5
 $as_echo "${flag}" >&6; }
@@ -15270,12 +15545,58 @@ $as_echo "${flag}" >&6; }
             PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
         fi
 
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5
+$as_echo_n "checking for PTHREAD_PRIO_INHERIT... " >&6; }
+if ${ax_cv_PTHREAD_PRIO_INHERIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+                    #include <pthread.h>
+int
+main ()
+{
+int i = PTHREAD_PRIO_INHERIT;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_PTHREAD_PRIO_INHERIT=yes
+else
+  ax_cv_PTHREAD_PRIO_INHERIT=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_PRIO_INHERIT" >&5
+$as_echo "$ax_cv_PTHREAD_PRIO_INHERIT" >&6; }
+        if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"; then :
+
+$as_echo "#define HAVE_PTHREAD_PRIO_INHERIT 1" >>confdefs.h
+
+fi
+
         LIBS="$save_LIBS"
         CFLAGS="$save_CFLAGS"
 
-        # More AIX lossage: must compile with xlc_r or cc_r
-	if test x"$GCC" != xyes; then
-          for ac_prog in xlc_r cc_r
+        # More AIX lossage: compile with *_r variant
+        if test "x$GCC" != xyes; then
+            case $host_os in
+                aix*)
+                case "x/$CC" in #(
+  x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6) :
+    #handle absolute path differently from PATH based program lookup
+                   case "x$CC" in #(
+  x/*) :
+    if as_fn_executable_p ${CC}_r; then :
+  PTHREAD_CC="${CC}_r"
+fi ;; #(
+  *) :
+    for ac_prog in ${CC}_r
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
@@ -15316,21 +15637,25 @@ fi
 
   test -n "$PTHREAD_CC" && break
 done
-test -n "$PTHREAD_CC" || PTHREAD_CC="${CC}"
-
-        else
-          PTHREAD_CC=$CC
-	fi
-else
-        PTHREAD_CC="$CC"
+test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
+ ;;
+esac ;; #(
+  *) :
+     ;;
+esac
+                ;;
+            esac
+        fi
 fi
 
+test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
+
 
 
 
 
 # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-if test x"$acx_pthread_ok" = xyes; then
+if test x"$ax_pthread_ok" = xyes; then
 
 
 $as_echo "#define HAVE_PTHREAD 1" >>confdefs.h
@@ -15363,7 +15688,7 @@ fi
 
         :
 else
-        acx_pthread_ok=no
+        ax_pthread_ok=no
 
 fi
 ac_ext=c
@@ -15457,7 +15782,7 @@ if eval \${cv_prog_cc_flag_$cache+:} false; then :
   $as_echo_n "(cached) " >&6
 else
 
-echo 'void f(){}' >conftest.c
+echo 'void f(void){}' >conftest.c
 if test -z "`$CC $CPPFLAGS $CFLAGS -mt -c conftest.c 2>&1`"; then
 eval "cv_prog_cc_flag_$cache=yes"
 else
@@ -16570,7 +16895,7 @@ else
 #include <openssl/evp.h>
 #include <openssl/engine.h>
 #include <openssl/conf.h>
-/* routine to load gost from ldns */
+/* routine to load gost (from sldns) */
 int load_gost_id(void)
 {
 	static int gost_id = 0;
@@ -16760,6 +17085,20 @@ _ACEOF
       ;;
 esac
 
+# Check whether --enable-event-api was given.
+if test "${enable_event_api+set}" = set; then :
+  enableval=$enable_event_api;
+fi
+
+use_unbound_event="no"
+case "$enable_event_api" in
+    yes)
+      use_unbound_event="yes"
+      ;;
+    *)
+      ;;
+esac
+
 # check for libevent
 
 # Check whether --with-libevent was given.
@@ -16777,7 +17116,7 @@ $as_echo_n "checking for libevent... " >&6; }
         fi
         for dir in $withval; do
             thedir="$dir"
-            if test -f "$dir/include/event.h"; then
+            if test -f "$dir/include/event.h" -o -f "$dir/include/event2/event.h"; then
                 found_libevent="yes"
 				if test "$thedir" != "/usr"; then
                     CPPFLAGS="$CPPFLAGS -I$thedir/include"
@@ -16814,8 +17153,18 @@ large outgoing port ranges.  " "$LINENO" 5
         else
             { $as_echo "$as_me:${as_lineno-$LINENO}: result: found in $thedir" >&5
 $as_echo "found in $thedir" >&6; }
-	    	    if test "$thedir" != "/usr" -a "$thedir" != ""; then
-                LDFLAGS="$LDFLAGS -L$thedir/lib"
+	    	    if test ! -f $thedir/lib/libevent.a -a ! -f $thedir/lib/libevent.so -a -d "$thedir/lib/event2"; then
+		    LDFLAGS="$LDFLAGS -L$thedir/lib/event2"
+
+	if test "x$enable_rpath" = xyes; then
+		if echo "$thedir/lib/event2" | grep "^/" >/dev/null; then
+			RUNTIME_PATH="$RUNTIME_PATH -R$thedir/lib/event2"
+		fi
+	fi
+
+	    else
+		    		    if test "$thedir" != "/usr" -a "$thedir" != ""; then
+			LDFLAGS="$LDFLAGS -L$thedir/lib"
 
 	if test "x$enable_rpath" = xyes; then
 		if echo "$thedir/lib" | grep "^/" >/dev/null; then
@@ -16823,6 +17172,7 @@ $as_echo "found in $thedir" >&6; }
 		fi
 	fi
 
+		    fi
 	    fi
         fi
 	# check for library used by libevent after 1.3c
@@ -17090,6 +17440,12 @@ done
 	if test -n "$BAK_LDFLAGS_SET"; then
 		LDFLAGS="$BAK_LDFLAGS"
 	fi
+        if test "$use_unbound_event" = "yes"; then
+		UNBOUND_EVENT_INSTALL=unbound-event-install
+
+		UNBOUND_EVENT_UNINSTALL=unbound-event-uninstall
+
+	fi
 else
 
 $as_echo "#define USE_MINI_EVENT 1" >>confdefs.h
@@ -17577,7 +17933,7 @@ if test "$ac_res" != no; then :
 
 fi
 
-for ac_func in tzset sigprocmask fcntl getpwnam getrlimit setrlimit setsid sbrk chroot kill sleep usleep random srandom recvmsg sendmsg writev socketpair glob initgroups strftime localtime_r setusercontext _beginthreadex
+for ac_func in tzset sigprocmask fcntl getpwnam getrlimit setrlimit setsid sbrk chroot kill sleep usleep random srandom recvmsg sendmsg writev socketpair glob initgroups strftime localtime_r setusercontext _beginthreadex endservent endprotoent
 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"
@@ -17698,6 +18054,20 @@ esac
 fi
 
 
+ac_fn_c_check_func "$LINENO" "strlcat" "ac_cv_func_strlcat"
+if test "x$ac_cv_func_strlcat" = xyes; then :
+  $as_echo "#define HAVE_STRLCAT 1" >>confdefs.h
+
+else
+  case " $LIBOBJS " in
+  *" strlcat.$ac_objext "* ) ;;
+  *) LIBOBJS="$LIBOBJS strlcat.$ac_objext"
+ ;;
+esac
+
+fi
+
+
 ac_fn_c_check_func "$LINENO" "strlcpy" "ac_cv_func_strlcpy"
 if test "x$ac_cv_func_strlcpy" = xyes; then :
   $as_echo "#define HAVE_STRLCPY 1" >>confdefs.h
@@ -17835,204 +18205,20 @@ rm -f conftest.lo
 
 # see if we want to build the library or everything
 ALLTARGET="alltargets"
+INSTALLTARGET="install-all"
 
 # Check whether --with-libunbound-only was given.
 if test "${with_libunbound_only+set}" = set; then :
   withval=$with_libunbound_only;
 	if test "$withval" = "yes"; then
 		ALLTARGET="lib"
+		INSTALLTARGET="install-lib"
 	fi
 
 fi
 
 
 
-# check this after all other compilation checks, since the linking of the lib
-# may break checks after this.
-
-# Check whether --with-ldns was given.
-if test "${with_ldns+set}" = set; then :
-  withval=$with_ldns;
-	if test "$withval" != "yes"; then
-		if test "$withval" != "/usr" -a "$withval" != ""; then
-			CPPFLAGS="-I$withval/include $CPPFLAGS"
-			LDFLAGS="-L$withval/lib $LDFLAGS"
-
-	if test "x$enable_rpath" = xyes; then
-		if echo "$withval/lib" | grep "^/" >/dev/null; then
-			RUNTIME_PATH="$RUNTIME_PATH -R$withval/lib"
-		fi
-	fi
-
-		fi
-		ldnsdir="$withval"
-
-	fi
-
-fi
-
-
-# check if ldns is good enough
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ldns_rr_new in -lldns" >&5
-$as_echo_n "checking for ldns_rr_new in -lldns... " >&6; }
-if ${ac_cv_lib_ldns_ldns_rr_new+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lldns  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char ldns_rr_new ();
-int
-main ()
-{
-return ldns_rr_new ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_ldns_ldns_rr_new=yes
-else
-  ac_cv_lib_ldns_ldns_rr_new=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ldns_ldns_rr_new" >&5
-$as_echo "$ac_cv_lib_ldns_ldns_rr_new" >&6; }
-if test "x$ac_cv_lib_ldns_ldns_rr_new" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBLDNS 1
-_ACEOF
-
-  LIBS="-lldns $LIBS"
-
-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
-
-fi
-
-ac_fn_c_check_func "$LINENO" "ldns_buffer_copy" "ac_cv_func_ldns_buffer_copy"
-if test "x$ac_cv_func_ldns_buffer_copy" = xyes; then :
-
-fi
-
-if test $USE_NSS = "no"; then
-    ac_fn_c_check_func "$LINENO" "ldns_key_buf2rsa_raw" "ac_cv_func_ldns_key_buf2rsa_raw"
-if test "x$ac_cv_func_ldns_key_buf2rsa_raw" = xyes; then :
-
-fi
-
-else
-        ac_cv_func_ldns_key_buf2rsa_raw="yes"
-fi
-ac_fn_c_check_func "$LINENO" "ldns_get_random" "ac_cv_func_ldns_get_random"
-if test "x$ac_cv_func_ldns_get_random" = xyes; then :
-
-fi
-
-ac_fn_c_check_func "$LINENO" "ldns_b32_ntop_extended_hex" "ac_cv_func_ldns_b32_ntop_extended_hex"
-if test "x$ac_cv_func_ldns_b32_ntop_extended_hex" = xyes; then :
-
-fi
-
-if test x$use_gost = xyes -a x$USE_NSS = xno; then
-    ac_fn_c_check_func "$LINENO" "ldns_key_EVP_load_gost_id" "ac_cv_func_ldns_key_EVP_load_gost_id"
-if test "x$ac_cv_func_ldns_key_EVP_load_gost_id" = xyes; then :
-
-fi
-
-    for ac_func in ldns_key_EVP_unload_gost
-do :
-  ac_fn_c_check_func "$LINENO" "ldns_key_EVP_unload_gost" "ac_cv_func_ldns_key_EVP_unload_gost"
-if test "x$ac_cv_func_ldns_key_EVP_unload_gost" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LDNS_KEY_EVP_UNLOAD_GOST 1
-_ACEOF
-
-fi
-done
-
-else
-        ac_cv_func_ldns_key_EVP_load_gost_id="yes"
-fi
-if test x$use_ecdsa = xyes; then
-    ac_fn_c_check_decl "$LINENO" "LDNS_ECDSAP384SHA384" "ac_cv_have_decl_LDNS_ECDSAP384SHA384" "
-$ac_includes_default
-#ifdef HAVE_SYS_SOCKET_H
-#  include <sys/socket.h>
-#endif
-#ifdef HAVE_WS2TCPIP_H
-#  include <ws2tcpip.h>
-#endif
-#include <ldns/ldns.h>
-
-"
-if test "x$ac_cv_have_decl_LDNS_ECDSAP384SHA384" = xyes; then :
-
-fi
-
-else
-    ac_cv_have_decl_LDNS_ECDSAP384SHA384="yes"
-fi
-for ac_header in ldns/ldns.h
-do :
-  ac_fn_c_check_header_compile "$LINENO" "ldns/ldns.h" "ac_cv_header_ldns_ldns_h" "$ac_includes_default
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-
-#ifdef HAVE_ARPA_INET_H
-#include <arpa/inet.h>
-#endif
-
-#ifdef HAVE_WINSOCK2_H
-#include <winsock2.h>
-#endif
-
-#ifdef HAVE_WS2TCPIP_H
-#include <ws2tcpip.h>
-#endif
-
-"
-if test "x$ac_cv_header_ldns_ldns_h" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LDNS_LDNS_H 1
-_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
-
-fi
-
-done
-
-if test $ac_cv_func_ldns_buffer_copy = yes \
-    -a $ac_cv_func_ldns_key_buf2rsa_raw = yes \
-    -a $ac_cv_func_ldns_get_random = yes \
-    -a $ac_cv_header_ldns_ldns_h = yes \
-    -a $ac_cv_func_ldns_b32_ntop_extended_hex = yes \
-    -a $ac_cv_func_ldns_key_EVP_load_gost_id = yes \
-    -a $ac_cv_have_decl_LDNS_ECDSAP384SHA384 = 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
-fi
 
 
   { $as_echo "$as_me:${as_lineno-$LINENO}: Stripping extension flags..." >&5
@@ -18622,7 +18808,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by unbound $as_me 1.4.20, which was
+This file was extended by unbound $as_me 1.4.22, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -18688,7 +18874,7 @@ _ACEOF
 cat >>$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 1.4.20
+unbound config.status 1.4.22
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"