From 3ecf3394e37dc2848a09ffc643565d454e9e6974 Mon Sep 17 00:00:00 2001
From: Andreas Gustafsson <source@isc.org>
Date: Tue, 13 Jun 2000 17:34:28 +0000
Subject: [PATCH] search for Perl at configure time, for use by the system test
 scripts

---
 bin/tests/system/{conf.sh => conf.sh.in} |   3 +
 configure                                | 392 +++++++++++++----------
 configure.in                             |   9 +-
 3 files changed, 231 insertions(+), 173 deletions(-)
 rename bin/tests/system/{conf.sh => conf.sh.in} (94%)
 mode change 100755 => 100644

diff --git a/bin/tests/system/conf.sh b/bin/tests/system/conf.sh.in
old mode 100755
new mode 100644
similarity index 94%
rename from bin/tests/system/conf.sh
rename to bin/tests/system/conf.sh.in
index 5663ae0441..626913c44a
--- a/bin/tests/system/conf.sh
+++ b/bin/tests/system/conf.sh.in
@@ -33,6 +33,9 @@ SIGNER=$TOP/bin/dnssec/dnssec-signzone
 KEYSIGNER=$TOP/bin/dnssec/dnssec-signkey
 KEYSETTOOL=$TOP/bin/dnssec/dnssec-makekeyset
 
+# PERL will be an empty string if no perl interpreter was found.
+PERL=@PERL@
+
 SUBDIRS="xfer dnssec xferquota"
 
 export NAMED DIG KEYGEN SIGNER KEYSIGNER KEYSETTOOL
diff --git a/configure b/configure
index 3ce4a96ec1..e33a6a522f 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# From configure.in Revision: 1.146 
+# From configure.in Revision: 1.147 
 
 
 
@@ -905,6 +905,51 @@ done
 
 
 
+#
+# Perl is optional; it is used only by some of the system test scripts.
+#
+for ac_prog in perl5 perl
+do
+# Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:917: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_path_PERL'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  case "$PERL" in
+  /*)
+  ac_cv_path_PERL="$PERL" # Let the user override the test with a path.
+  ;;
+  ?:/*)			 
+  ac_cv_path_PERL="$PERL" # Let the user override the test with a dos path.
+  ;;
+  *)
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  ac_dummy="$PATH"
+  for ac_dir in $ac_dummy; do 
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_path_PERL="$ac_dir/$ac_word"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+  ;;
+esac
+fi
+PERL="$ac_cv_path_PERL"
+if test -n "$PERL"; then
+  echo "$ac_t""$PERL" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+test -n "$PERL" && break
+done
+
+
+
 #
 # Special processing of paths depending on whether --prefix,
 # --sysconfdir or --localstatedir arguments were given.  What's
@@ -1016,14 +1061,14 @@ fi
 # Find the machine's endian flavor.
 #
 echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
-echo "configure:1020: checking whether byte ordering is bigendian" >&5
+echo "configure:1065: checking whether byte ordering is bigendian" >&5
 if eval "test \"`echo '$''{'ac_cv_c_bigendian'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_cv_c_bigendian=unknown
 # See if sys/param.h defines the BYTE_ORDER macro.
 cat > conftest.$ac_ext <<EOF
-#line 1027 "configure"
+#line 1072 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -1034,11 +1079,11 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:1038: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1083: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   # It does; now see whether it defined to BIG_ENDIAN or not.
 cat > conftest.$ac_ext <<EOF
-#line 1042 "configure"
+#line 1087 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -1049,7 +1094,7 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:1053: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1098: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_bigendian=yes
 else
@@ -1069,7 +1114,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1073 "configure"
+#line 1118 "configure"
 #include "confdefs.h"
 main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
@@ -1082,7 +1127,7 @@ main () {
   exit (u.c[sizeof (long) - 1] == 1);
 }
 EOF
-if { (eval echo configure:1086: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1131: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_bigendian=no
 else
@@ -1112,7 +1157,7 @@ fi
 # XXXMLG Implement this check!
 #
 echo $ac_n "checking for compatible OpenSSL library""... $ac_c" 1>&6
-echo "configure:1116: checking for compatible OpenSSL library" >&5
+echo "configure:1161: checking for compatible OpenSSL library" >&5
 
 DST_PRIVATEOPENSSL='-DDST_USE_PRIVATE_OPENSSL'
 dst_privateopenssl='openssl'
@@ -1158,7 +1203,7 @@ case "$host" in
   *-netbsd*)
 	CC="gcc"
 	echo $ac_n "checking which NetBSD thread library to use""... $ac_c" 1>&6
-echo "configure:1162: checking which NetBSD thread library to use" >&5
+echo "configure:1207: checking which NetBSD thread library to use" >&5
 
 	# Check whether --with-ptl2 or --without-ptl2 was given.
 if test "${with_ptl2+set}" = set; then
@@ -1200,7 +1245,7 @@ esac
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1204: checking for $ac_word" >&5
+echo "configure:1249: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1230,7 +1275,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1234: checking for $ac_word" >&5
+echo "configure:1279: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1281,7 +1326,7 @@ fi
       # Extract the first word of "cl", so it can be a program name with args.
 set dummy cl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1285: checking for $ac_word" >&5
+echo "configure:1330: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1313,7 +1358,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:1317: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:1362: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1324,12 +1369,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 1328 "configure"
+#line 1373 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:1333: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1378: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cc_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -1355,12 +1400,12 @@ if test $ac_cv_prog_cc_works = no; then
   { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:1359: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1404: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
 cross_compiling=$ac_cv_prog_cc_cross
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:1364: checking whether we are using GNU C" >&5
+echo "configure:1409: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1369,7 +1414,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1373: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1418: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -1388,7 +1433,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
 ac_save_CFLAGS="$CFLAGS"
 CFLAGS=
 echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:1392: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:1437: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1424,7 +1469,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1428: checking for $ac_word" >&5
+echo "configure:1473: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_YACC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1456,7 +1501,7 @@ test -n "$YACC" || YACC="yacc"
 
 
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1460: checking how to run the C preprocessor" >&5
+echo "configure:1505: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1471,13 +1516,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1475 "configure"
+#line 1520 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1481: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1526: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1488,13 +1533,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1492 "configure"
+#line 1537 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1498: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1543: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1505,13 +1550,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 1509 "configure"
+#line 1554 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1515: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1560: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1536,12 +1581,12 @@ fi
 echo "$ac_t""$CPP" 1>&6
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:1540: checking for ANSI C header files" >&5
+echo "configure:1585: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1545 "configure"
+#line 1590 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -1549,7 +1594,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1553: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1598: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1566,7 +1611,7 @@ rm -f conftest*
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 1570 "configure"
+#line 1615 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -1584,7 +1629,7 @@ fi
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 1588 "configure"
+#line 1633 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -1605,7 +1650,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 1609 "configure"
+#line 1654 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -1616,7 +1661,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:1620: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1665: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -1644,17 +1689,17 @@ for ac_hdr in fcntl.h sys/time.h unistd.h sys/sockio.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1648: checking for $ac_hdr" >&5
+echo "configure:1693: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1653 "configure"
+#line 1698 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1658: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1703: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1682,12 +1727,12 @@ done
 
 
 echo $ac_n "checking for working const""... $ac_c" 1>&6
-echo "configure:1686: checking for working const" >&5
+echo "configure:1731: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1691 "configure"
+#line 1736 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -1736,7 +1781,7 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:1740: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1785: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -1757,21 +1802,21 @@ EOF
 fi
 
 echo $ac_n "checking for inline""... $ac_c" 1>&6
-echo "configure:1761: checking for inline" >&5
+echo "configure:1806: checking for inline" >&5
 if eval "test \"`echo '$''{'ac_cv_c_inline'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_cv_c_inline=no
 for ac_kw in inline __inline__ __inline; do
   cat > conftest.$ac_ext <<EOF
-#line 1768 "configure"
+#line 1813 "configure"
 #include "confdefs.h"
 
 int main() {
 } $ac_kw foo() {
 ; return 0; }
 EOF
-if { (eval echo configure:1775: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1820: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_inline=$ac_kw; break
 else
@@ -1797,12 +1842,12 @@ EOF
 esac
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:1801: checking for size_t" >&5
+echo "configure:1846: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1806 "configure"
+#line 1851 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1830,12 +1875,12 @@ EOF
 fi
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:1834: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:1879: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1839 "configure"
+#line 1884 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -1844,7 +1889,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:1848: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1893: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -1866,7 +1911,7 @@ fi
 
 
 echo $ac_n "checking for pthread_create in -lpthread""... $ac_c" 1>&6
-echo "configure:1870: checking for pthread_create in -lpthread" >&5
+echo "configure:1915: checking for pthread_create in -lpthread" >&5
 ac_lib_var=`echo pthread'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1874,7 +1919,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1878 "configure"
+#line 1923 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1885,7 +1930,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:1889: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1934: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1911,7 +1956,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for __pthread_create in -lpthread""... $ac_c" 1>&6
-echo "configure:1915: checking for __pthread_create in -lpthread" >&5
+echo "configure:1960: checking for __pthread_create in -lpthread" >&5
 ac_lib_var=`echo pthread'_'__pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1919,7 +1964,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1923 "configure"
+#line 1968 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1930,7 +1975,7 @@ int main() {
 __pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:1934: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1979: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1958,7 +2003,7 @@ else
 fi
 
              echo $ac_n "checking for __pthread_create_system in -lpthread""... $ac_c" 1>&6
-echo "configure:1962: checking for __pthread_create_system in -lpthread" >&5
+echo "configure:2007: checking for __pthread_create_system in -lpthread" >&5
 ac_lib_var=`echo pthread'_'__pthread_create_system | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1966,7 +2011,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1970 "configure"
+#line 2015 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1977,7 +2022,7 @@ int main() {
 __pthread_create_system()
 ; return 0; }
 EOF
-if { (eval echo configure:1981: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2026: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2012,7 +2057,7 @@ fi
 # We'd like to use sigwait() too
 #
 echo $ac_n "checking for sigwait in -lc""... $ac_c" 1>&6
-echo "configure:2016: checking for sigwait in -lc" >&5
+echo "configure:2061: checking for sigwait in -lc" >&5
 ac_lib_var=`echo c'_'sigwait | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2020,7 +2065,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2024 "configure"
+#line 2069 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2031,7 +2076,7 @@ int main() {
 sigwait()
 ; return 0; }
 EOF
-if { (eval echo configure:2035: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2080: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2053,7 +2098,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for sigwait in -lpthread""... $ac_c" 1>&6
-echo "configure:2057: checking for sigwait in -lpthread" >&5
+echo "configure:2102: checking for sigwait in -lpthread" >&5
 ac_lib_var=`echo pthread'_'sigwait | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2061,7 +2106,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2065 "configure"
+#line 2110 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2072,7 +2117,7 @@ int main() {
 sigwait()
 ; return 0; }
 EOF
-if { (eval echo configure:2076: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2121: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2094,7 +2139,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for _Psigwait in -lpthread""... $ac_c" 1>&6
-echo "configure:2098: checking for _Psigwait in -lpthread" >&5
+echo "configure:2143: checking for _Psigwait in -lpthread" >&5
 ac_lib_var=`echo pthread'_'_Psigwait | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2102,7 +2147,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2106 "configure"
+#line 2151 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2113,7 +2158,7 @@ int main() {
 _Psigwait()
 ; return 0; }
 EOF
-if { (eval echo configure:2117: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2162: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2151,7 +2196,7 @@ case "$host" in
         #
 	*-freebsd*)
 		echo $ac_n "checking for sigwait in -lc_r""... $ac_c" 1>&6
-echo "configure:2155: checking for sigwait in -lc_r" >&5
+echo "configure:2200: checking for sigwait in -lc_r" >&5
 ac_lib_var=`echo c_r'_'sigwait | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2159,7 +2204,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lc_r  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2163 "configure"
+#line 2208 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2170,7 +2215,7 @@ int main() {
 sigwait()
 ; return 0; }
 EOF
-if { (eval echo configure:2174: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2219: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2237,12 +2282,12 @@ esac
 # NLS
 #
 echo $ac_n "checking for catgets""... $ac_c" 1>&6
-echo "configure:2241: checking for catgets" >&5
+echo "configure:2286: checking for catgets" >&5
 if eval "test \"`echo '$''{'ac_cv_func_catgets'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2246 "configure"
+#line 2291 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char catgets(); below.  */
@@ -2265,7 +2310,7 @@ catgets();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2269: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2314: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_catgets=yes"
 else
@@ -2303,7 +2348,7 @@ case "$host" in
 		;;
 	*)
 		echo $ac_n "checking for socket in -lsocket""... $ac_c" 1>&6
-echo "configure:2307: checking for socket in -lsocket" >&5
+echo "configure:2352: checking for socket in -lsocket" >&5
 ac_lib_var=`echo socket'_'socket | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2311,7 +2356,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2315 "configure"
+#line 2360 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2322,7 +2367,7 @@ int main() {
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:2326: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2371: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2350,7 +2395,7 @@ else
 fi
 
 		echo $ac_n "checking for inet_ntoa in -lnsl""... $ac_c" 1>&6
-echo "configure:2354: checking for inet_ntoa in -lnsl" >&5
+echo "configure:2399: checking for inet_ntoa in -lnsl" >&5
 ac_lib_var=`echo nsl'_'inet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2358,7 +2403,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2362 "configure"
+#line 2407 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2369,7 +2414,7 @@ int main() {
 inet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:2373: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2418: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2478,9 +2523,9 @@ esac
 # Look for a 4.4BSD-style sa_len member in struct sockaddr.
 #
 echo $ac_n "checking for sa_len in struct sockaddr""... $ac_c" 1>&6
-echo "configure:2482: checking for sa_len in struct sockaddr" >&5
+echo "configure:2527: checking for sa_len in struct sockaddr" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2484 "configure"
+#line 2529 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2489,7 +2534,7 @@ int main() {
 struct sockaddr sa; sa.sa_len = 0; return (0);
 ; return 0; }
 EOF
-if { (eval echo configure:2493: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2538: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	ISC_PLATFORM_HAVESALEN="#define ISC_PLATFORM_HAVESALEN 1"
@@ -2510,9 +2555,9 @@ rm -f conftest*
 # Look for a 4.4BSD or 4.3BSD struct msghdr
 #
 echo $ac_n "checking for struct msghdr flavor""... $ac_c" 1>&6
-echo "configure:2514: checking for struct msghdr flavor" >&5
+echo "configure:2559: checking for struct msghdr flavor" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2516 "configure"
+#line 2561 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2521,7 +2566,7 @@ int main() {
 struct msghdr msg; msg.msg_flags = 0; return (0);
 ; return 0; }
 EOF
-if { (eval echo configure:2525: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2570: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""4.4BSD" 1>&6
 	ISC_PLATFORM_MSGHDRFLAVOR="#define ISC_NET_BSD44MSGHDR 1"
@@ -2539,9 +2584,9 @@ rm -f conftest*
 # Look for in_port_t.
 #
 echo $ac_n "checking for type in_port_t""... $ac_c" 1>&6
-echo "configure:2543: checking for type in_port_t" >&5
+echo "configure:2588: checking for type in_port_t" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2545 "configure"
+#line 2590 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2550,7 +2595,7 @@ int main() {
 in_port_t port = 25; return (0);
 ; return 0; }
 EOF
-if { (eval echo configure:2554: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2599: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	ISC_PLATFORM_NEEDPORTT="#undef ISC_PLATFORM_NEEDPORTT"
@@ -2568,9 +2613,9 @@ rm -f conftest*
 # Check for addrinfo
 #
 echo $ac_n "checking for struct addrinfo""... $ac_c" 1>&6
-echo "configure:2572: checking for struct addrinfo" >&5
+echo "configure:2617: checking for struct addrinfo" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2574 "configure"
+#line 2619 "configure"
 #include "confdefs.h"
 
 #include <netdb.h>
@@ -2578,7 +2623,7 @@ int main() {
 struct addrinfo a; return (0);
 ; return 0; }
 EOF
-if { (eval echo configure:2582: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2627: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	ISC_LWRES_NEEDADDRINFO="#undef ISC_LWRES_NEEDADDRINFO"
@@ -2593,9 +2638,9 @@ rm -f conftest*
 
 
 echo $ac_n "checking for int sethostent""... $ac_c" 1>&6
-echo "configure:2597: checking for int sethostent" >&5
+echo "configure:2642: checking for int sethostent" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2599 "configure"
+#line 2644 "configure"
 #include "confdefs.h"
 
 #include <netdb.h>
@@ -2603,7 +2648,7 @@ int main() {
 int i = sethostent(0); return(0);
 ; return 0; }
 EOF
-if { (eval echo configure:2607: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2652: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	ISC_LWRES_SETHOSTENTINT="#define ISC_LWRES_SETHOSTENTINT 1"
@@ -2618,9 +2663,9 @@ rm -f conftest*
 
 
 echo $ac_n "checking for int endhostent""... $ac_c" 1>&6
-echo "configure:2622: checking for int endhostent" >&5
+echo "configure:2667: checking for int endhostent" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2624 "configure"
+#line 2669 "configure"
 #include "confdefs.h"
 
 #include <netdb.h>
@@ -2628,7 +2673,7 @@ int main() {
 int i = endhostent(); return(0);
 ; return 0; }
 EOF
-if { (eval echo configure:2632: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2677: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	ISC_LWRES_ENDHOSTENTINT="#define ISC_LWRES_ENDHOSTENTINT 1"
@@ -2643,9 +2688,9 @@ rm -f conftest*
 
 
 echo $ac_n "checking for getnetbyaddr(in_addr_t, ...)""... $ac_c" 1>&6
-echo "configure:2647: checking for getnetbyaddr(in_addr_t, ...)" >&5
+echo "configure:2692: checking for getnetbyaddr(in_addr_t, ...)" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2649 "configure"
+#line 2694 "configure"
 #include "confdefs.h"
 
 #include <netdb.h>
@@ -2654,7 +2699,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:2658: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2703: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	ISC_LWRES_GETNETBYADDRINADDR="#define ISC_LWRES_GETNETBYADDRINADDR 1"
@@ -2669,9 +2714,9 @@ rm -f conftest*
 
 
 echo $ac_n "checking for int setnetent""... $ac_c" 1>&6
-echo "configure:2673: checking for int setnetent" >&5
+echo "configure:2718: checking for int setnetent" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2675 "configure"
+#line 2720 "configure"
 #include "confdefs.h"
 
 #include <netdb.h>
@@ -2679,7 +2724,7 @@ int main() {
 int i = setnetent(0); return(0);
 ; return 0; }
 EOF
-if { (eval echo configure:2683: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2728: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	ISC_LWRES_SETNETENTINT="#define ISC_LWRES_SETNETENTINT 1"
@@ -2694,9 +2739,9 @@ rm -f conftest*
 
 
 echo $ac_n "checking for int endnetent""... $ac_c" 1>&6
-echo "configure:2698: checking for int endnetent" >&5
+echo "configure:2743: checking for int endnetent" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2700 "configure"
+#line 2745 "configure"
 #include "confdefs.h"
 
 #include <netdb.h>
@@ -2704,7 +2749,7 @@ int main() {
 int i = endnetent(); return(0);
 ; return 0; }
 EOF
-if { (eval echo configure:2708: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2753: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	ISC_LWRES_ENDNETENTINT="#define ISC_LWRES_ENDNETENTINT 1"
@@ -2719,9 +2764,9 @@ rm -f conftest*
 
 
 echo $ac_n "checking for gethostbyadd(const void *, size_t, ...)""... $ac_c" 1>&6
-echo "configure:2723: checking for gethostbyadd(const void *, size_t, ...)" >&5
+echo "configure:2768: checking for gethostbyadd(const void *, size_t, ...)" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2725 "configure"
+#line 2770 "configure"
 #include "confdefs.h"
 
 #include <netdb.h>
@@ -2730,7 +2775,7 @@ int main() {
 return(0);
 ; return 0; }
 EOF
-if { (eval echo configure:2734: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2779: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	ISC_LWRES_GETHOSTBYADDRVOID="#define ISC_LWRES_GETHOSTBYADDRVOID 1"
@@ -2745,9 +2790,9 @@ rm -f conftest*
 
 
 echo $ac_n "checking for h_errno in netdb.h""... $ac_c" 1>&6
-echo "configure:2749: checking for h_errno in netdb.h" >&5
+echo "configure:2794: checking for h_errno in netdb.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2751 "configure"
+#line 2796 "configure"
 #include "confdefs.h"
 
 #include <netdb.h>
@@ -2755,7 +2800,7 @@ int main() {
 h_errno = 1; return(0);
 ; return 0; }
 EOF
-if { (eval echo configure:2759: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2804: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	ISC_LWRES_NEEDHERRNO="#undef ISC_LWRES_NEEDHERRNO"
@@ -2770,12 +2815,12 @@ rm -f conftest*
 
 
 echo $ac_n "checking for getipnodebyname""... $ac_c" 1>&6
-echo "configure:2774: checking for getipnodebyname" >&5
+echo "configure:2819: checking for getipnodebyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_getipnodebyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2779 "configure"
+#line 2824 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char getipnodebyname(); below.  */
@@ -2798,7 +2843,7 @@ getipnodebyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2802: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2847: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_getipnodebyname=yes"
 else
@@ -2819,12 +2864,12 @@ ISC_LWRES_GETIPNODEPROTO="#define ISC_LWRES_GETIPNODEPROTO 1"
 fi
 
 echo $ac_n "checking for getnameinfo""... $ac_c" 1>&6
-echo "configure:2823: checking for getnameinfo" >&5
+echo "configure:2868: checking for getnameinfo" >&5
 if eval "test \"`echo '$''{'ac_cv_func_getnameinfo'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2828 "configure"
+#line 2873 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char getnameinfo(); below.  */
@@ -2847,7 +2892,7 @@ getnameinfo();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2851: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2896: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_getnameinfo=yes"
 else
@@ -2868,12 +2913,12 @@ ISC_LWRES_GETNAMEINFOPROTO="#define ISC_LWRES_GETNAMEINFOPROTO 1"
 fi
 
 echo $ac_n "checking for getaddrinfo""... $ac_c" 1>&6
-echo "configure:2872: checking for getaddrinfo" >&5
+echo "configure:2917: checking for getaddrinfo" >&5
 if eval "test \"`echo '$''{'ac_cv_func_getaddrinfo'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2877 "configure"
+#line 2922 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char getaddrinfo(); below.  */
@@ -2896,7 +2941,7 @@ getaddrinfo();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2900: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2945: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_getaddrinfo=yes"
 else
@@ -2924,9 +2969,9 @@ fi
 # Look for a sysctl call to get the list of network interfaces.
 #
 echo $ac_n "checking for interface list sysctl""... $ac_c" 1>&6
-echo "configure:2928: checking for interface list sysctl" >&5
+echo "configure:2973: checking for interface list sysctl" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2930 "configure"
+#line 2975 "configure"
 #include "confdefs.h"
 
 #include <sys/param.h>
@@ -3036,7 +3081,7 @@ else
 fi
 
 echo $ac_n "checking build system type""... $ac_c" 1>&6
-echo "configure:3040: checking build system type" >&5
+echo "configure:3085: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
@@ -3065,7 +3110,7 @@ ac_prog=ld
 if test "$ac_cv_prog_gcc" = yes; then
   # Check if gcc -print-prog-name=ld gives a path.
   echo $ac_n "checking for ld used by GCC""... $ac_c" 1>&6
-echo "configure:3069: checking for ld used by GCC" >&5
+echo "configure:3114: checking for ld used by GCC" >&5
   ac_prog=`($CC -print-prog-name=ld) 2>&5`
   case "$ac_prog" in
     # Accept absolute paths.
@@ -3089,10 +3134,10 @@ echo "configure:3069: checking for ld used by GCC" >&5
   esac
 elif test "$with_gnu_ld" = yes; then
   echo $ac_n "checking for GNU ld""... $ac_c" 1>&6
-echo "configure:3093: checking for GNU ld" >&5
+echo "configure:3138: checking for GNU ld" >&5
 else
   echo $ac_n "checking for non-GNU ld""... $ac_c" 1>&6
-echo "configure:3096: checking for non-GNU ld" >&5
+echo "configure:3141: checking for non-GNU ld" >&5
 fi
 if eval "test \"`echo '$''{'ac_cv_path_LD'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3128,7 +3173,7 @@ fi
 test -z "$LD" && { echo "configure: error: no acceptable ld found in \$PATH" 1>&2; exit 1; }
 
 echo $ac_n "checking if the linker ($LD) is GNU ld""... $ac_c" 1>&6
-echo "configure:3132: checking if the linker ($LD) is GNU ld" >&5
+echo "configure:3177: checking if the linker ($LD) is GNU ld" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gnu_ld'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3144,7 +3189,7 @@ echo "$ac_t""$ac_cv_prog_gnu_ld" 1>&6
 
 
 echo $ac_n "checking for BSD-compatible nm""... $ac_c" 1>&6
-echo "configure:3148: checking for BSD-compatible nm" >&5
+echo "configure:3193: checking for BSD-compatible nm" >&5
 if eval "test \"`echo '$''{'ac_cv_path_NM'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3181,7 +3226,7 @@ echo "$ac_t""$NM" 1>&6
 
 
 echo $ac_n "checking whether ln -s works""... $ac_c" 1>&6
-echo "configure:3185: checking whether ln -s works" >&5
+echo "configure:3230: checking whether ln -s works" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_LN_S'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -3225,8 +3270,8 @@ test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
 case "$host" in
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 3229 "configure"' > conftest.$ac_ext
-  if { (eval echo configure:3230: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  echo '#line 3274 "configure"' > conftest.$ac_ext
+  if { (eval echo configure:3275: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
     case "`/usr/bin/file conftest.o`" in
     *32-bit*)
       LD="${LD-ld} -32"
@@ -3247,19 +3292,19 @@ case "$host" in
   SAVE_CFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -belf"
   echo $ac_n "checking whether the C compiler needs -belf""... $ac_c" 1>&6
-echo "configure:3251: checking whether the C compiler needs -belf" >&5
+echo "configure:3296: checking whether the C compiler needs -belf" >&5
 if eval "test \"`echo '$''{'lt_cv_cc_needs_belf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3256 "configure"
+#line 3301 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:3263: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3308: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   lt_cv_cc_needs_belf=yes
 else
@@ -3396,9 +3441,9 @@ fi
 case "$enable_ipv6" in
 	yes|''|autodetect)
 		echo $ac_n "checking for IPv6 structures""... $ac_c" 1>&6
-echo "configure:3400: checking for IPv6 structures" >&5
+echo "configure:3445: checking for IPv6 structures" >&5
 		cat > conftest.$ac_ext <<EOF
-#line 3402 "configure"
+#line 3447 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -3408,7 +3453,7 @@ int main() {
 struct sockaddr_in6 sin6; return (0);
 ; return 0; }
 EOF
-if { (eval echo configure:3412: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3457: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 			 found_ipv6=yes
@@ -3431,7 +3476,7 @@ esac
 # This is done before other IPv6 linking tests to LIBS is properly set.
 #
 echo $ac_n "checking for Kame IPv6 support""... $ac_c" 1>&6
-echo "configure:3435: checking for Kame IPv6 support" >&5
+echo "configure:3480: checking for Kame IPv6 support" >&5
 # Check whether --with-kame or --without-kame was given.
 if test "${with_kame+set}" = set; then
   withval="$with_kame"
@@ -3518,9 +3563,9 @@ case "$found_ipv6" in
 		ISC_PLATFORM_HAVEIPV6="#define ISC_PLATFORM_HAVEIPV6 1"
 		LWRES_PLATFORM_HAVEIPV6="#define LWRES_PLATFORM_HAVEIPV6 1"
 		echo $ac_n "checking for in6addr_any""... $ac_c" 1>&6
-echo "configure:3522: checking for in6addr_any" >&5
+echo "configure:3567: checking for in6addr_any" >&5
 		cat > conftest.$ac_ext <<EOF
-#line 3524 "configure"
+#line 3569 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -3531,7 +3576,7 @@ int main() {
 struct in6_addr in6; in6 = in6addr_any; return (0);
 ; return 0; }
 EOF
-if { (eval echo configure:3535: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3580: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 			 ISC_PLATFORM_NEEDIN6ADDRANY="#undef ISC_PLATFORM_NEEDIN6ADDRANY"
@@ -3546,9 +3591,9 @@ else
 fi
 rm -f conftest*
 		echo $ac_n "checking for in6_pktinfo""... $ac_c" 1>&6
-echo "configure:3550: checking for in6_pktinfo" >&5
+echo "configure:3595: checking for in6_pktinfo" >&5
 		cat > conftest.$ac_ext <<EOF
-#line 3552 "configure"
+#line 3597 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -3561,7 +3606,7 @@ int main() {
 struct in6_pktinfo xyzzy; return (0);
 ; return 0; }
 EOF
-if { (eval echo configure:3565: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3610: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 			 ISC_PLATFORM_HAVEIN6PKTINFO="#define ISC_PLATFORM_HAVEIN6PKTINFO 1"
@@ -3607,9 +3652,9 @@ esac
 # the files.
 #
 echo $ac_n "checking for inet_ntop""... $ac_c" 1>&6
-echo "configure:3611: checking for inet_ntop" >&5
+echo "configure:3656: checking for inet_ntop" >&5
 cat > conftest.$ac_ext <<EOF
-#line 3613 "configure"
+#line 3658 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -3619,7 +3664,7 @@ int main() {
 inet_ntop(0, 0, 0, 0); return (0);
 ; return 0; }
 EOF
-if { (eval echo configure:3623: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3668: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
         ISC_PLATFORM_NEEDNTOP="#undef ISC_PLATFORM_NEEDNTOP"
@@ -3634,9 +3679,9 @@ else
 fi
 rm -f conftest*
 echo $ac_n "checking for inet_pton""... $ac_c" 1>&6
-echo "configure:3638: checking for inet_pton" >&5
+echo "configure:3683: checking for inet_pton" >&5
 cat > conftest.$ac_ext <<EOF
-#line 3640 "configure"
+#line 3685 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -3646,7 +3691,7 @@ int main() {
 inet_pton(0, 0, 0); return (0);
 ; return 0; }
 EOF
-if { (eval echo configure:3650: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3695: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
         ISC_PLATFORM_NEEDPTON="#undef ISC_PLATFORM_NEEDPTON"
@@ -3661,9 +3706,9 @@ else
 fi
 rm -f conftest*
 echo $ac_n "checking for inet_aton""... $ac_c" 1>&6
-echo "configure:3665: checking for inet_aton" >&5
+echo "configure:3710: checking for inet_aton" >&5
 cat > conftest.$ac_ext <<EOF
-#line 3667 "configure"
+#line 3712 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -3673,7 +3718,7 @@ int main() {
 struct in_addr in; inet_aton(0, &in); return (0);
 ; return 0; }
 EOF
-if { (eval echo configure:3677: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3722: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
         ISC_PLATFORM_NEEDATON="#undef ISC_PLATFORM_NEEDATON"
@@ -3694,12 +3739,12 @@ rm -f conftest*
 
 # Check for some other useful functions that are not ever-present.
 echo $ac_n "checking for strsep""... $ac_c" 1>&6
-echo "configure:3698: checking for strsep" >&5
+echo "configure:3743: checking for strsep" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strsep'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3703 "configure"
+#line 3748 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strsep(); below.  */
@@ -3722,7 +3767,7 @@ strsep();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3726: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3771: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strsep=yes"
 else
@@ -3743,12 +3788,12 @@ ISC_PLATFORM_NEEDSTRSEP="#define ISC_PLATFORM_NEEDSTRSEP 1"
 fi
 
 echo $ac_n "checking for vsnprintf""... $ac_c" 1>&6
-echo "configure:3747: checking for vsnprintf" >&5
+echo "configure:3792: checking for vsnprintf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vsnprintf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3752 "configure"
+#line 3797 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char vsnprintf(); below.  */
@@ -3771,7 +3816,7 @@ vsnprintf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3775: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3820: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_vsnprintf=yes"
 else
@@ -3800,17 +3845,17 @@ fi
 
 
 echo $ac_n "checking for sizeof(long long int) == sizeof(long int)""... $ac_c" 1>&6
-echo "configure:3804: checking for sizeof(long long int) == sizeof(long int)" >&5
+echo "configure:3849: checking for sizeof(long long int) == sizeof(long int)" >&5
 if test "$cross_compiling" = yes; then
   echo "$ac_t""default yes" 1>&6
 	ISC_PLATFORM_LONGLONGEQUALLONG="#define ISC_PLATFORM_LONGLONGEQUALLONG 1"
 else
   cat > conftest.$ac_ext <<EOF
-#line 3810 "configure"
+#line 3855 "configure"
 #include "confdefs.h"
 main() { exit(!(sizeof(long long int) == sizeof(long int))); }
 EOF
-if { (eval echo configure:3814: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3859: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   echo "$ac_t""yes" 1>&6
 	ISC_PLATFORM_LONGLONGEQUALLONG="#define ISC_PLATFORM_LONGLONGEQUALLONG 1"
@@ -3830,12 +3875,12 @@ fi
 # Security Stuff
 #
 echo $ac_n "checking for chroot""... $ac_c" 1>&6
-echo "configure:3834: checking for chroot" >&5
+echo "configure:3879: checking for chroot" >&5
 if eval "test \"`echo '$''{'ac_cv_func_chroot'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3839 "configure"
+#line 3884 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char chroot(); below.  */
@@ -3858,7 +3903,7 @@ chroot();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3862: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3907: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_chroot=yes"
 else
@@ -3884,17 +3929,17 @@ for ac_hdr in linux/capability.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:3888: checking for $ac_hdr" >&5
+echo "configure:3933: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3893 "configure"
+#line 3938 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3898: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3943: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3924,17 +3969,17 @@ for ac_hdr in linux/prctl.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:3928: checking for $ac_hdr" >&5
+echo "configure:3973: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3933 "configure"
+#line 3978 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3938: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3983: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -4231,6 +4276,7 @@ trap 'rm -fr `echo "make/rules
 	bin/tests/mem/Makefile
 	bin/tests/sockaddr/Makefile
 	bin/tests/system/Makefile
+	bin/tests/system/conf.sh
 	bin/tests/headerdep_test.sh
 	bin/dnssec/Makefile
  config.h" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
@@ -4281,6 +4327,7 @@ s%@STD_CWARNINGS@%$STD_CWARNINGS%g
 s%@AR@%$AR%g
 s%@ARFLAGS@%$ARFLAGS%g
 s%@ETAGS@%$ETAGS%g
+s%@PERL@%$PERL%g
 s%@DST_PRIVATEOPENSSL@%$DST_PRIVATEOPENSSL%g
 s%@dst_privateopenssl@%$dst_privateopenssl%g
 s%@DST_OPENSSL_INC@%$DST_OPENSSL_INC%g
@@ -4459,6 +4506,7 @@ CONFIG_FILES=\${CONFIG_FILES-"make/rules
 	bin/tests/mem/Makefile
 	bin/tests/sockaddr/Makefile
 	bin/tests/system/Makefile
+	bin/tests/system/conf.sh
 	bin/tests/headerdep_test.sh
 	bin/dnssec/Makefile
 "}
diff --git a/configure.in b/configure.in
index a200051dc7..dcb9463330 100644
--- a/configure.in
+++ b/configure.in
@@ -13,7 +13,7 @@ dnl PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
 dnl ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 dnl SOFTWARE.
 
-AC_REVISION($Revision: 1.146 $)
+AC_REVISION($Revision: 1.147 $)
 
 AC_PREREQ(2.13)
 
@@ -48,6 +48,12 @@ esac
 AC_PATH_PROGS(ETAGS, etags emacs-etags)
 AC_SUBST(ETAGS)
 
+#
+# Perl is optional; it is used only by some of the system test scripts.
+#
+AC_PATH_PROGS(PERL, perl5 perl)
+AC_SUBST(PERL)
+
 #
 # Special processing of paths depending on whether --prefix,
 # --sysconfdir or --localstatedir arguments were given.  What's
@@ -1003,6 +1009,7 @@ AC_OUTPUT(
 	bin/tests/mem/Makefile
 	bin/tests/sockaddr/Makefile
 	bin/tests/system/Makefile
+	bin/tests/system/conf.sh
 	bin/tests/headerdep_test.sh
 	bin/dnssec/Makefile
 )