From 4300e290d809921bc745135ce926444d365ea0ed Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Mon, 1 Jan 2001 23:10:09 +0000
Subject: [PATCH] Define HAVE_LIBZ only if we detect <zlib.h> as well as
 libz.a/.so. Otherwise, build falls over on a machine with a non-devel RPM of
 libz.

---
 configure    | 516 +++++++++++++++++++++++++++------------------------
 configure.in |   5 +-
 2 files changed, 279 insertions(+), 242 deletions(-)

diff --git a/configure b/configure
index d5488bda9e..0b78352605 100755
--- a/configure
+++ b/configure
@@ -4108,24 +4108,24 @@ if test "$ac_cv_search_crypt" != "no"; then
 else :
   
 fi
-echo $ac_n "checking for inflate in -lz""... $ac_c" 1>&6
-echo "configure:4113: checking for inflate in -lz" >&5
-ac_lib_var=`echo z'_'inflate | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for __inet_ntoa in -lbind""... $ac_c" 1>&6
+echo "configure:4113: checking for __inet_ntoa in -lbind" >&5
+ac_lib_var=`echo bind'_'__inet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
-LIBS="-lz  $LIBS"
+LIBS="-lbind  $LIBS"
 cat > conftest.$ac_ext <<EOF
 #line 4121 "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
     builtin and then its argument prototype would still apply.  */
-char inflate();
+char __inet_ntoa();
 
 int main() {
-inflate()
+__inet_ntoa()
 ; return 0; }
 EOF
 if { (eval echo configure:4132: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
@@ -4143,39 +4143,68 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo z | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    ac_tr_lib=HAVE_LIB`echo bind | sed -e 's/[^a-zA-Z0-9_]/_/g' \
     -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
 
-  LIBS="-lz $LIBS"
+  LIBS="-lbind $LIBS"
 
 else
   echo "$ac_t""no" 1>&6
 fi
 
-echo $ac_n "checking for __inet_ntoa in -lbind""... $ac_c" 1>&6
-echo "configure:4160: checking for __inet_ntoa in -lbind" >&5
-ac_lib_var=`echo bind'_'__inet_ntoa | sed 'y%./+-%__p_%'`
+ac_safe=`echo "zlib.h" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for zlib.h""... $ac_c" 1>&6
+echo "configure:4161: checking for zlib.h" >&5
+if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 4166 "configure"
+#include "confdefs.h"
+#include <zlib.h>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:4171: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=yes"
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  
+echo $ac_n "checking for inflate in -lz""... $ac_c" 1>&6
+echo "configure:4189: checking for inflate in -lz" >&5
+ac_lib_var=`echo z'_'inflate | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
-LIBS="-lbind  $LIBS"
+LIBS="-lz  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4168 "configure"
+#line 4197 "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
     builtin and then its argument prototype would still apply.  */
-char __inet_ntoa();
+char inflate();
 
 int main() {
-__inet_ntoa()
+inflate()
 ; return 0; }
 EOF
-if { (eval echo configure:4179: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4208: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4190,13 +4219,18 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo bind | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    ac_tr_lib=HAVE_LIB`echo z | sed -e 's/[^a-zA-Z0-9_]/_/g' \
     -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
 
-  LIBS="-lbind $LIBS"
+  LIBS="-lz $LIBS"
+
+else
+  echo "$ac_t""no" 1>&6
+fi
+
 
 else
   echo "$ac_t""no" 1>&6
@@ -4206,7 +4240,7 @@ fi
 
 if test "$with_krb4" = yes ; then
   echo $ac_n "checking for des_encrypt in -ldes""... $ac_c" 1>&6
-echo "configure:4210: checking for des_encrypt in -ldes" >&5
+echo "configure:4244: checking for des_encrypt in -ldes" >&5
 ac_lib_var=`echo des'_'des_encrypt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4214,7 +4248,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldes  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4218 "configure"
+#line 4252 "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
@@ -4225,7 +4259,7 @@ int main() {
 des_encrypt()
 ; return 0; }
 EOF
-if { (eval echo configure:4229: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4263: \"$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
@@ -4254,7 +4288,7 @@ else
 fi
 
   echo $ac_n "checking for krb_sendauth in -lkrb""... $ac_c" 1>&6
-echo "configure:4258: checking for krb_sendauth in -lkrb" >&5
+echo "configure:4292: checking for krb_sendauth in -lkrb" >&5
 ac_lib_var=`echo krb'_'krb_sendauth | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4262,7 +4296,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lkrb  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4266 "configure"
+#line 4300 "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
@@ -4273,7 +4307,7 @@ int main() {
 krb_sendauth()
 ; return 0; }
 EOF
-if { (eval echo configure:4277: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4311: \"$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
@@ -4305,7 +4339,7 @@ fi
 
 if test "$with_krb5" = yes ; then
   echo $ac_n "checking for com_err in -lcom_err""... $ac_c" 1>&6
-echo "configure:4309: checking for com_err in -lcom_err" >&5
+echo "configure:4343: checking for com_err in -lcom_err" >&5
 ac_lib_var=`echo com_err'_'com_err | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4313,7 +4347,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lcom_err  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4317 "configure"
+#line 4351 "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
@@ -4324,7 +4358,7 @@ int main() {
 com_err()
 ; return 0; }
 EOF
-if { (eval echo configure:4328: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4362: \"$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
@@ -4353,7 +4387,7 @@ else
 fi
 
   echo $ac_n "checking for krb5_encrypt in -lcrypto""... $ac_c" 1>&6
-echo "configure:4357: checking for krb5_encrypt in -lcrypto" >&5
+echo "configure:4391: checking for krb5_encrypt in -lcrypto" >&5
 ac_lib_var=`echo crypto'_'krb5_encrypt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4361,7 +4395,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lcrypto  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4365 "configure"
+#line 4399 "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
@@ -4372,7 +4406,7 @@ int main() {
 krb5_encrypt()
 ; return 0; }
 EOF
-if { (eval echo configure:4376: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4410: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4398,7 +4432,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for krb5_encrypt in -lk5crypto""... $ac_c" 1>&6
-echo "configure:4402: checking for krb5_encrypt in -lk5crypto" >&5
+echo "configure:4436: checking for krb5_encrypt in -lk5crypto" >&5
 ac_lib_var=`echo k5crypto'_'krb5_encrypt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4406,7 +4440,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lk5crypto  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4410 "configure"
+#line 4444 "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
@@ -4417,7 +4451,7 @@ int main() {
 krb5_encrypt()
 ; return 0; }
 EOF
-if { (eval echo configure:4421: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4455: \"$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
@@ -4448,7 +4482,7 @@ fi
 fi
 
   echo $ac_n "checking for krb5_sendauth in -lkrb5""... $ac_c" 1>&6
-echo "configure:4452: checking for krb5_sendauth in -lkrb5" >&5
+echo "configure:4486: checking for krb5_sendauth in -lkrb5" >&5
 ac_lib_var=`echo krb5'_'krb5_sendauth | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4456,7 +4490,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lkrb5  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4460 "configure"
+#line 4494 "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
@@ -4467,7 +4501,7 @@ int main() {
 krb5_sendauth()
 ; return 0; }
 EOF
-if { (eval echo configure:4471: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4505: \"$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
@@ -4499,7 +4533,7 @@ fi
 
 if test "$with_openssl" = yes ; then
     echo $ac_n "checking for CRYPTO_new_ex_data in -lcrypto""... $ac_c" 1>&6
-echo "configure:4503: checking for CRYPTO_new_ex_data in -lcrypto" >&5
+echo "configure:4537: checking for CRYPTO_new_ex_data in -lcrypto" >&5
 ac_lib_var=`echo crypto'_'CRYPTO_new_ex_data | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4507,7 +4541,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lcrypto  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4511 "configure"
+#line 4545 "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
@@ -4518,7 +4552,7 @@ int main() {
 CRYPTO_new_ex_data()
 ; return 0; }
 EOF
-if { (eval echo configure:4522: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4556: \"$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
@@ -4547,7 +4581,7 @@ else
 fi
 
   echo $ac_n "checking for SSL_library_init in -lssl""... $ac_c" 1>&6
-echo "configure:4551: checking for SSL_library_init in -lssl" >&5
+echo "configure:4585: checking for SSL_library_init in -lssl" >&5
 ac_lib_var=`echo ssl'_'SSL_library_init | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4555,7 +4589,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lssl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4559 "configure"
+#line 4593 "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
@@ -4566,7 +4600,7 @@ int main() {
 SSL_library_init()
 ; return 0; }
 EOF
-if { (eval echo configure:4570: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4604: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -4604,17 +4638,17 @@ for ac_hdr in crypt.h dld.h endian.h fp_class.h getopt.h ieeefp.h pwd.h sys/ipc.
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4608: checking for $ac_hdr" >&5
+echo "configure:4642: 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 4613 "configure"
+#line 4647 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4618: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4652: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -4645,17 +4679,17 @@ for ac_hdr in netinet/in.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4649: checking for $ac_hdr" >&5
+echo "configure:4683: 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 4654 "configure"
+#line 4688 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4659: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4693: \"$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*
@@ -4682,9 +4716,9 @@ fi
 done
 
 echo $ac_n "checking for netinet/tcp.h""... $ac_c" 1>&6
-echo "configure:4686: checking for netinet/tcp.h" >&5
+echo "configure:4720: checking for netinet/tcp.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 4688 "configure"
+#line 4722 "configure"
 #include "confdefs.h"
 
 #ifdef HAVE_NETINET_IN_H
@@ -4694,7 +4728,7 @@ cat > conftest.$ac_ext <<EOF
 
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4698: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4732: \"$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*
@@ -4712,24 +4746,24 @@ fi
 rm -f conftest*
 
 echo $ac_n "checking whether string.h and strings.h may both be included""... $ac_c" 1>&6
-echo "configure:4716: checking whether string.h and strings.h may both be included" >&5
+echo "configure:4750: checking whether string.h and strings.h may both be included" >&5
 if eval "test \"`echo '$''{'pgac_cv_header_strings_both'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4721 "configure"
+#line 4755 "configure"
 #include "confdefs.h"
 #include <string.h>
 #include <strings.h>
 
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4728: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4762: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
   cat > conftest.$ac_ext <<EOF
-#line 4733 "configure"
+#line 4767 "configure"
 #include "confdefs.h"
 #include <string.h>
 #include <strings.h>
@@ -4738,7 +4772,7 @@ int main() {
 int n = strcasecmp("a", "b");
 ; return 0; }
 EOF
-if { (eval echo configure:4742: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4776: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   pgac_cv_header_strings_both=yes
 else
@@ -4770,17 +4804,17 @@ for ac_hdr in readline/readline.h readline.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4774: checking for $ac_hdr" >&5
+echo "configure:4808: 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 4779 "configure"
+#line 4813 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4784: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4818: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -4810,17 +4844,17 @@ for ac_hdr in readline/history.h history.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:4814: checking for $ac_hdr" >&5
+echo "configure:4848: 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 4819 "configure"
+#line 4853 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4824: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4858: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -4850,17 +4884,17 @@ done
 if test "$with_krb4" = yes ; then
   ac_safe=`echo "krb.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for krb.h""... $ac_c" 1>&6
-echo "configure:4854: checking for krb.h" >&5
+echo "configure:4888: checking for krb.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4859 "configure"
+#line 4893 "configure"
 #include "confdefs.h"
 #include <krb.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4864: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4898: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -4887,17 +4921,17 @@ fi
 if test "$with_krb5" = yes ; then
   ac_safe=`echo "krb5.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for krb5.h""... $ac_c" 1>&6
-echo "configure:4891: checking for krb5.h" >&5
+echo "configure:4925: checking for krb5.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4896 "configure"
+#line 4930 "configure"
 #include "confdefs.h"
 #include <krb5.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4901: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4935: \"$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*
@@ -4921,17 +4955,17 @@ fi
 
   ac_safe=`echo "com_err.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for com_err.h""... $ac_c" 1>&6
-echo "configure:4925: checking for com_err.h" >&5
+echo "configure:4959: checking for com_err.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4930 "configure"
+#line 4964 "configure"
 #include "confdefs.h"
 #include <com_err.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4935: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:4969: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -4958,17 +4992,17 @@ fi
 if test "$with_openssl" = yes ; then
   ac_safe=`echo "openssl/ssl.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for openssl/ssl.h""... $ac_c" 1>&6
-echo "configure:4962: checking for openssl/ssl.h" >&5
+echo "configure:4996: checking for openssl/ssl.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4967 "configure"
+#line 5001 "configure"
 #include "confdefs.h"
 #include <openssl/ssl.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:4972: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5006: \"$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*
@@ -4992,17 +5026,17 @@ fi
 
   ac_safe=`echo "openssl/err.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for openssl/err.h""... $ac_c" 1>&6
-echo "configure:4996: checking for openssl/err.h" >&5
+echo "configure:5030: checking for openssl/err.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5001 "configure"
+#line 5035 "configure"
 #include "confdefs.h"
 #include <openssl/err.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:5006: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:5040: \"$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*
@@ -5031,12 +5065,12 @@ fi
 ## Types, structures, compiler characteristics
 ##
 echo $ac_n "checking for working const""... $ac_c" 1>&6
-echo "configure:5035: checking for working const" >&5
+echo "configure:5069: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5040 "configure"
+#line 5074 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -5085,7 +5119,7 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:5089: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5123: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -5106,21 +5140,21 @@ EOF
 fi
 
 echo $ac_n "checking for inline""... $ac_c" 1>&6
-echo "configure:5110: checking for inline" >&5
+echo "configure:5144: checking for inline" >&5
 if eval "test \"`echo '$''{'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 5117 "configure"
+#line 5151 "configure"
 #include "confdefs.h"
 
 int main() {
 } $ac_kw foo() {
 ; return 0; }
 EOF
-if { (eval echo configure:5124: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5158: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_inline=$ac_kw; break
 else
@@ -5148,12 +5182,12 @@ esac
 
 
 echo $ac_n "checking for preprocessor stringizing operator""... $ac_c" 1>&6
-echo "configure:5152: checking for preprocessor stringizing operator" >&5
+echo "configure:5186: checking for preprocessor stringizing operator" >&5
 if eval "test \"`echo '$''{'ac_cv_c_stringize'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5157 "configure"
+#line 5191 "configure"
 #include "confdefs.h"
 
 #define x(y) #y
@@ -5183,19 +5217,19 @@ fi
 echo "$ac_t""${ac_cv_c_stringize}" 1>&6
 
 echo $ac_n "checking for signed types""... $ac_c" 1>&6
-echo "configure:5187: checking for signed types" >&5
+echo "configure:5221: checking for signed types" >&5
 if eval "test \"`echo '$''{'pgac_cv_c_signed'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5192 "configure"
+#line 5226 "configure"
 #include "confdefs.h"
 
 int main() {
 signed char c; signed short s; signed int i;
 ; return 0; }
 EOF
-if { (eval echo configure:5199: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5233: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   pgac_cv_c_signed=yes
 else
@@ -5215,19 +5249,19 @@ EOF
 
 fi
 echo $ac_n "checking for volatile""... $ac_c" 1>&6
-echo "configure:5219: checking for volatile" >&5
+echo "configure:5253: checking for volatile" >&5
 if eval "test \"`echo '$''{'pgac_cv_c_volatile'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5224 "configure"
+#line 5258 "configure"
 #include "confdefs.h"
 
 int main() {
 extern volatile int i;
 ; return 0; }
 EOF
-if { (eval echo configure:5231: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5265: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   pgac_cv_c_volatile=yes
 else
@@ -5247,12 +5281,12 @@ EOF
 
 fi
 echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6
-echo "configure:5251: checking whether struct tm is in sys/time.h or time.h" >&5
+echo "configure:5285: checking whether struct tm is in sys/time.h or time.h" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5256 "configure"
+#line 5290 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
@@ -5260,7 +5294,7 @@ int main() {
 struct tm *tp; tp->tm_sec;
 ; return 0; }
 EOF
-if { (eval echo configure:5264: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5298: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm=time.h
 else
@@ -5281,12 +5315,12 @@ EOF
 fi
 
 echo $ac_n "checking for tm_zone in struct tm""... $ac_c" 1>&6
-echo "configure:5285: checking for tm_zone in struct tm" >&5
+echo "configure:5319: checking for tm_zone in struct tm" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm_zone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5290 "configure"
+#line 5324 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_cv_struct_tm>
@@ -5294,7 +5328,7 @@ int main() {
 struct tm tm; tm.tm_zone;
 ; return 0; }
 EOF
-if { (eval echo configure:5298: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5332: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm_zone=yes
 else
@@ -5314,12 +5348,12 @@ EOF
 
 else
   echo $ac_n "checking for tzname""... $ac_c" 1>&6
-echo "configure:5318: checking for tzname" >&5
+echo "configure:5352: checking for tzname" >&5
 if eval "test \"`echo '$''{'ac_cv_var_tzname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5323 "configure"
+#line 5357 "configure"
 #include "confdefs.h"
 #include <time.h>
 #ifndef tzname /* For SGI.  */
@@ -5329,7 +5363,7 @@ int main() {
 atoi(*tzname);
 ; return 0; }
 EOF
-if { (eval echo configure:5333: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5367: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_var_tzname=yes
 else
@@ -5351,12 +5385,12 @@ EOF
 fi
 
 echo $ac_n "checking for union semun""... $ac_c" 1>&6
-echo "configure:5355: checking for union semun" >&5
+echo "configure:5389: checking for union semun" >&5
 if eval "test \"`echo '$''{'pgac_cv_union_semun'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5360 "configure"
+#line 5394 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/ipc.h>
@@ -5365,7 +5399,7 @@ int main() {
 union semun semun;
 ; return 0; }
 EOF
-if { (eval echo configure:5369: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5403: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   pgac_cv_union_semun=yes
 else
@@ -5385,12 +5419,12 @@ EOF
 
 fi
 echo $ac_n "checking for struct sockaddr_un""... $ac_c" 1>&6
-echo "configure:5389: checking for struct sockaddr_un" >&5
+echo "configure:5423: checking for struct sockaddr_un" >&5
 if eval "test \"`echo '$''{'pgac_cv_struct_sockaddr_un'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5394 "configure"
+#line 5428 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #ifdef HAVE_SYS_UN_H
@@ -5400,7 +5434,7 @@ int main() {
 struct sockaddr_un un;
 ; return 0; }
 EOF
-if { (eval echo configure:5404: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5438: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   pgac_cv_struct_sockaddr_un=yes
 else
@@ -5424,19 +5458,19 @@ fi
 ## Functions, global variables
 ##
 echo $ac_n "checking for int timezone""... $ac_c" 1>&6
-echo "configure:5428: checking for int timezone" >&5
+echo "configure:5462: checking for int timezone" >&5
 if eval "test \"`echo '$''{'pgac_cv_var_int_timezone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5433 "configure"
+#line 5467 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
 int res = timezone / 60;
 ; return 0; }
 EOF
-if { (eval echo configure:5440: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5474: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   pgac_cv_var_int_timezone=yes
 else
@@ -5456,7 +5490,7 @@ EOF
 
 fi
 echo $ac_n "checking types of arguments for accept()""... $ac_c" 1>&6
-echo "configure:5460: checking types of arguments for accept()" >&5
+echo "configure:5494: checking types of arguments for accept()" >&5
  if eval "test \"`echo '$''{'ac_cv_func_accept_arg1'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5470,7 +5504,7 @@ else
      for ac_cv_func_accept_arg2 in 'struct sockaddr *' 'const struct sockaddr *' 'void *'; do
       for ac_cv_func_accept_arg3 in 'int' 'size_t' 'socklen_t' 'unsigned int' 'void'; do
        cat > conftest.$ac_ext <<EOF
-#line 5474 "configure"
+#line 5508 "configure"
 #include "confdefs.h"
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
@@ -5483,7 +5517,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:5487: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5521: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_not_found=no; break 3
 else
@@ -5523,12 +5557,12 @@ EOF
 
 
 echo $ac_n "checking whether gettimeofday takes only one argument""... $ac_c" 1>&6
-echo "configure:5527: checking whether gettimeofday takes only one argument" >&5
+echo "configure:5561: checking whether gettimeofday takes only one argument" >&5
 if eval "test \"`echo '$''{'pgac_cv_func_gettimeofday_1arg'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5532 "configure"
+#line 5566 "configure"
 #include "confdefs.h"
 #include <sys/time.h>
 int main() {
@@ -5537,7 +5571,7 @@ struct timezone *tzp;
 gettimeofday(tp,tzp);
 ; return 0; }
 EOF
-if { (eval echo configure:5541: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5575: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   pgac_cv_func_gettimeofday_1arg=no
 else
@@ -5560,12 +5594,12 @@ fi
 for ac_func in fcvt getopt_long memmove pstat setproctitle setsid sigprocmask sysconf waitpid dlopen
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5564: checking for $ac_func" >&5
+echo "configure:5598: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5569 "configure"
+#line 5603 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5588,7 +5622,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5592: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5626: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5614,12 +5648,12 @@ done
 
 
 echo $ac_n "checking for PS_STRINGS""... $ac_c" 1>&6
-echo "configure:5618: checking for PS_STRINGS" >&5
+echo "configure:5652: checking for PS_STRINGS" >&5
 if eval "test \"`echo '$''{'pgac_cv_var_PS_STRINGS'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5623 "configure"
+#line 5657 "configure"
 #include "confdefs.h"
 #include <machine/vmparam.h>
 #include <sys/exec.h>
@@ -5629,7 +5663,7 @@ PS_STRINGS->ps_nargvstr = 1;
 PS_STRINGS->ps_argvstr = "foo";
 ; return 0; }
 EOF
-if { (eval echo configure:5633: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5667: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   pgac_cv_var_PS_STRINGS=yes
 else
@@ -5651,12 +5685,12 @@ fi
 
 SNPRINTF=''
 echo $ac_n "checking for snprintf""... $ac_c" 1>&6
-echo "configure:5655: checking for snprintf" >&5
+echo "configure:5689: checking for snprintf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_snprintf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5660 "configure"
+#line 5694 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char snprintf(); below.  */
@@ -5679,7 +5713,7 @@ snprintf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5683: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5717: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_snprintf=yes"
 else
@@ -5703,12 +5737,12 @@ SNPRINTF='snprintf.o'
 fi
 
 echo $ac_n "checking for vsnprintf""... $ac_c" 1>&6
-echo "configure:5707: checking for vsnprintf" >&5
+echo "configure:5741: checking for vsnprintf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vsnprintf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5712 "configure"
+#line 5746 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char vsnprintf(); below.  */
@@ -5731,7 +5765,7 @@ vsnprintf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5735: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5769: \"$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
@@ -5756,7 +5790,7 @@ fi
 
 
 cat > conftest.$ac_ext <<EOF
-#line 5760 "configure"
+#line 5794 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 EOF
@@ -5771,7 +5805,7 @@ fi
 rm -f conftest*
 
 cat > conftest.$ac_ext <<EOF
-#line 5775 "configure"
+#line 5809 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 EOF
@@ -5788,12 +5822,12 @@ rm -f conftest*
 
 # do this one the hard way in case isinf() is a macro
 echo $ac_n "checking for isinf""... $ac_c" 1>&6
-echo "configure:5792: checking for isinf" >&5
+echo "configure:5826: checking for isinf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_isinf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5797 "configure"
+#line 5831 "configure"
 #include "confdefs.h"
 #include <math.h>
 
@@ -5801,7 +5835,7 @@ int main() {
 double x = 0.0; int res = isinf(x);
 ; return 0; }
 EOF
-if { (eval echo configure:5805: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5839: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_func_isinf=yes
 else
@@ -5827,12 +5861,12 @@ else
   for ac_func in fpclass fp_class fp_class_d class
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5831: checking for $ac_func" >&5
+echo "configure:5865: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5836 "configure"
+#line 5870 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5855,7 +5889,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5859: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5893: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5883,12 +5917,12 @@ fi
 
 
 echo $ac_n "checking for getrusage""... $ac_c" 1>&6
-echo "configure:5887: checking for getrusage" >&5
+echo "configure:5921: checking for getrusage" >&5
 if eval "test \"`echo '$''{'ac_cv_func_getrusage'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5892 "configure"
+#line 5926 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char getrusage(); below.  */
@@ -5911,7 +5945,7 @@ getrusage();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5915: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5949: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_getrusage=yes"
 else
@@ -5936,12 +5970,12 @@ fi
 
 
 echo $ac_n "checking for srandom""... $ac_c" 1>&6
-echo "configure:5940: checking for srandom" >&5
+echo "configure:5974: checking for srandom" >&5
 if eval "test \"`echo '$''{'ac_cv_func_srandom'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5945 "configure"
+#line 5979 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char srandom(); below.  */
@@ -5964,7 +5998,7 @@ srandom();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5968: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6002: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_srandom=yes"
 else
@@ -5989,12 +6023,12 @@ fi
 
 
 echo $ac_n "checking for gethostname""... $ac_c" 1>&6
-echo "configure:5993: checking for gethostname" >&5
+echo "configure:6027: checking for gethostname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5998 "configure"
+#line 6032 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostname(); below.  */
@@ -6017,7 +6051,7 @@ gethostname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6021: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6055: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gethostname=yes"
 else
@@ -6042,12 +6076,12 @@ fi
 
 
 echo $ac_n "checking for random""... $ac_c" 1>&6
-echo "configure:6046: checking for random" >&5
+echo "configure:6080: checking for random" >&5
 if eval "test \"`echo '$''{'ac_cv_func_random'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6051 "configure"
+#line 6085 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char random(); below.  */
@@ -6070,7 +6104,7 @@ random();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6074: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6108: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_random=yes"
 else
@@ -6095,12 +6129,12 @@ fi
 
 
 echo $ac_n "checking for inet_aton""... $ac_c" 1>&6
-echo "configure:6099: checking for inet_aton" >&5
+echo "configure:6133: checking for inet_aton" >&5
 if eval "test \"`echo '$''{'ac_cv_func_inet_aton'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6104 "configure"
+#line 6138 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char inet_aton(); below.  */
@@ -6123,7 +6157,7 @@ inet_aton();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6127: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6161: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_inet_aton=yes"
 else
@@ -6148,12 +6182,12 @@ fi
 
 
 echo $ac_n "checking for strerror""... $ac_c" 1>&6
-echo "configure:6152: checking for strerror" >&5
+echo "configure:6186: checking for strerror" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strerror'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6157 "configure"
+#line 6191 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strerror(); below.  */
@@ -6176,7 +6210,7 @@ strerror();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6180: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6214: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strerror=yes"
 else
@@ -6202,12 +6236,12 @@ fi
 
 
 echo $ac_n "checking for strdup""... $ac_c" 1>&6
-echo "configure:6206: checking for strdup" >&5
+echo "configure:6240: checking for strdup" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strdup'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6211 "configure"
+#line 6245 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strdup(); below.  */
@@ -6230,7 +6264,7 @@ strdup();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6234: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6268: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strdup=yes"
 else
@@ -6255,12 +6289,12 @@ fi
 
 
 echo $ac_n "checking for strtol""... $ac_c" 1>&6
-echo "configure:6259: checking for strtol" >&5
+echo "configure:6293: checking for strtol" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtol'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6264 "configure"
+#line 6298 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtol(); below.  */
@@ -6283,7 +6317,7 @@ strtol();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6287: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6321: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strtol=yes"
 else
@@ -6308,12 +6342,12 @@ fi
 
 
 echo $ac_n "checking for strtoul""... $ac_c" 1>&6
-echo "configure:6312: checking for strtoul" >&5
+echo "configure:6346: checking for strtoul" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtoul'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6317 "configure"
+#line 6351 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtoul(); below.  */
@@ -6336,7 +6370,7 @@ strtoul();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6340: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6374: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strtoul=yes"
 else
@@ -6361,12 +6395,12 @@ fi
 
 
 echo $ac_n "checking for strcasecmp""... $ac_c" 1>&6
-echo "configure:6365: checking for strcasecmp" >&5
+echo "configure:6399: checking for strcasecmp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strcasecmp'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6370 "configure"
+#line 6404 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strcasecmp(); below.  */
@@ -6389,7 +6423,7 @@ strcasecmp();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6393: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6427: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strcasecmp=yes"
 else
@@ -6414,12 +6448,12 @@ fi
 
 
 echo $ac_n "checking for cbrt""... $ac_c" 1>&6
-echo "configure:6418: checking for cbrt" >&5
+echo "configure:6452: checking for cbrt" >&5
 if eval "test \"`echo '$''{'ac_cv_func_cbrt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6423 "configure"
+#line 6457 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char cbrt(); below.  */
@@ -6442,7 +6476,7 @@ cbrt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6446: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6480: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_cbrt=yes"
 else
@@ -6463,7 +6497,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for cbrt in -lm""... $ac_c" 1>&6
-echo "configure:6467: checking for cbrt in -lm" >&5
+echo "configure:6501: checking for cbrt in -lm" >&5
 ac_lib_var=`echo m'_'cbrt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6471,7 +6505,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6475 "configure"
+#line 6509 "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
@@ -6482,7 +6516,7 @@ int main() {
 cbrt()
 ; return 0; }
 EOF
-if { (eval echo configure:6486: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6520: \"$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
@@ -6520,12 +6554,12 @@ esac
 
 
 echo $ac_n "checking for rint""... $ac_c" 1>&6
-echo "configure:6524: checking for rint" >&5
+echo "configure:6558: checking for rint" >&5
 if eval "test \"`echo '$''{'ac_cv_func_rint'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6529 "configure"
+#line 6563 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char rint(); below.  */
@@ -6548,7 +6582,7 @@ rint();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6552: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6586: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_rint=yes"
 else
@@ -6569,7 +6603,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for rint in -lm""... $ac_c" 1>&6
-echo "configure:6573: checking for rint in -lm" >&5
+echo "configure:6607: checking for rint in -lm" >&5
 ac_lib_var=`echo m'_'rint | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6577,7 +6611,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm $HPUXMATHLIB $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6581 "configure"
+#line 6615 "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
@@ -6588,7 +6622,7 @@ int main() {
 rint()
 ; return 0; }
 EOF
-if { (eval echo configure:6592: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6626: \"$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
@@ -6617,9 +6651,9 @@ fi
 
 # Readline versions < 2.1 don't have rl_completion_append_character
 echo $ac_n "checking for rl_completion_append_character""... $ac_c" 1>&6
-echo "configure:6621: checking for rl_completion_append_character" >&5
+echo "configure:6655: checking for rl_completion_append_character" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6623 "configure"
+#line 6657 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #ifdef HAVE_READLINE_H
@@ -6632,7 +6666,7 @@ int main() {
 rl_completion_append_character = 'x';
 ; return 0; }
 EOF
-if { (eval echo configure:6636: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6670: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 cat >> confdefs.h <<\EOF
@@ -6653,7 +6687,7 @@ rm -f conftest*
 # with earlier Cygwins don't have this declared, although it's in the
 # library.
 echo $ac_n "checking whether filename_completion_function is declared""... $ac_c" 1>&6
-echo "configure:6657: checking whether filename_completion_function is declared" >&5
+echo "configure:6691: checking whether filename_completion_function is declared" >&5
 if test "$ac_cv_header_readline_h" = yes; then
     _readline_header='readline.h'
 elif test "$ac_cv_header_readline_readline_h" = yes; then
@@ -6662,7 +6696,7 @@ else
     _readline_header='xxx'
 fi
 cat > conftest.$ac_ext <<EOF
-#line 6666 "configure"
+#line 6700 "configure"
 #include "confdefs.h"
 #include <$_readline_header>
 EOF
@@ -6684,16 +6718,16 @@ rm -f conftest*
 
 
 echo $ac_n "checking for finite""... $ac_c" 1>&6
-echo "configure:6688: checking for finite" >&5
+echo "configure:6722: checking for finite" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6690 "configure"
+#line 6724 "configure"
 #include "confdefs.h"
 #include <math.h>
 int main() {
 int dummy=finite(1.0);
 ; return 0; }
 EOF
-if { (eval echo configure:6697: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6731: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_FINITE 1
@@ -6708,16 +6742,16 @@ fi
 rm -f conftest*
 
 echo $ac_n "checking for sigsetjmp""... $ac_c" 1>&6
-echo "configure:6712: checking for sigsetjmp" >&5
+echo "configure:6746: checking for sigsetjmp" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6714 "configure"
+#line 6748 "configure"
 #include "confdefs.h"
 #include <setjmp.h>
 int main() {
 sigjmp_buf x; sigsetjmp(x, 1);
 ; return 0; }
 EOF
-if { (eval echo configure:6721: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6755: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_SIGSETJMP 1
@@ -6737,12 +6771,12 @@ if test x"${enable_syslog+set}" = xset; then
   case $enable_syslog in
     yes)
       echo $ac_n "checking for syslog""... $ac_c" 1>&6
-echo "configure:6741: checking for syslog" >&5
+echo "configure:6775: checking for syslog" >&5
 if eval "test \"`echo '$''{'ac_cv_func_syslog'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6746 "configure"
+#line 6780 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char syslog(); below.  */
@@ -6765,7 +6799,7 @@ syslog();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6769: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6803: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_syslog=yes"
 else
@@ -6804,19 +6838,19 @@ fi
 
 
 echo $ac_n "checking for optreset""... $ac_c" 1>&6
-echo "configure:6808: checking for optreset" >&5
+echo "configure:6842: checking for optreset" >&5
 if eval "test \"`echo '$''{'pgac_cv_var_int_optreset'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6813 "configure"
+#line 6847 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 int main() {
 extern int optreset; optreset = 1;
 ; return 0; }
 EOF
-if { (eval echo configure:6820: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6854: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   pgac_cv_var_int_optreset=yes
 else
@@ -6839,7 +6873,7 @@ fi
 
 
 echo $ac_n "checking whether long int is 64 bits""... $ac_c" 1>&6
-echo "configure:6843: checking whether long int is 64 bits" >&5
+echo "configure:6877: checking whether long int is 64 bits" >&5
 if eval "test \"`echo '$''{'pgac_cv_type_long_int_64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6848,7 +6882,7 @@ else
 echo "configure: warning: 64 bit arithmetic disabled when cross-compiling" 1>&2
 else
   cat > conftest.$ac_ext <<EOF
-#line 6852 "configure"
+#line 6886 "configure"
 #include "confdefs.h"
 typedef long int int64;
 
@@ -6877,7 +6911,7 @@ main() {
   exit(! does_int64_work());
 }
 EOF
-if { (eval echo configure:6881: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6915: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   pgac_cv_type_long_int_64=yes
 else
@@ -6904,7 +6938,7 @@ fi
 
 if test x"$HAVE_LONG_INT_64" = x"no" ; then
   echo $ac_n "checking whether long long int is 64 bits""... $ac_c" 1>&6
-echo "configure:6908: checking whether long long int is 64 bits" >&5
+echo "configure:6942: checking whether long long int is 64 bits" >&5
 if eval "test \"`echo '$''{'pgac_cv_type_long_long_int_64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6913,7 +6947,7 @@ else
 echo "configure: warning: 64 bit arithmetic disabled when cross-compiling" 1>&2
 else
   cat > conftest.$ac_ext <<EOF
-#line 6917 "configure"
+#line 6951 "configure"
 #include "confdefs.h"
 typedef long long int int64;
 
@@ -6942,7 +6976,7 @@ main() {
   exit(! does_int64_work());
 }
 EOF
-if { (eval echo configure:6946: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6980: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   pgac_cv_type_long_long_int_64=yes
 else
@@ -6973,7 +7007,7 @@ fi
 if [ x"$HAVE_LONG_LONG_INT_64" = xyes ] ; then
   if [ x$SNPRINTF = x ] ; then
     echo $ac_n "checking whether snprintf handles 'long long int' as %lld""... $ac_c" 1>&6
-echo "configure:6977: checking whether snprintf handles 'long long int' as %lld" >&5
+echo "configure:7011: checking whether snprintf handles 'long long int' as %lld" >&5
     if test "$cross_compiling" = yes; then
    echo "$ac_t""assuming not on target machine" 1>&6
 	# Force usage of our own snprintf, since we cannot test foreign snprintf
@@ -6982,7 +7016,7 @@ echo "configure:6977: checking whether snprintf handles 'long long int' as %lld"
   
 else
   cat > conftest.$ac_ext <<EOF
-#line 6986 "configure"
+#line 7020 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 typedef long long int int64;
@@ -7009,7 +7043,7 @@ main() {
   exit(! does_int64_snprintf_work());
 }
 EOF
-if { (eval echo configure:7013: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7047: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
    echo "$ac_t""yes" 1>&6
 	  INT64_FORMAT='"%lld"'
@@ -7020,7 +7054,7 @@ else
   rm -fr conftest*
    echo "$ac_t""no" 1>&6
     echo $ac_n "checking whether snprintf handles 'long long int' as %qd""... $ac_c" 1>&6
-echo "configure:7024: checking whether snprintf handles 'long long int' as %qd" >&5 
+echo "configure:7058: checking whether snprintf handles 'long long int' as %qd" >&5 
     if test "$cross_compiling" = yes; then
    echo "$ac_t""assuming not on target machine" 1>&6
 	# Force usage of our own snprintf, since we cannot test foreign snprintf
@@ -7029,7 +7063,7 @@ echo "configure:7024: checking whether snprintf handles 'long long int' as %qd"
   
 else
   cat > conftest.$ac_ext <<EOF
-#line 7033 "configure"
+#line 7067 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 typedef long long int int64;
@@ -7056,7 +7090,7 @@ main() {
   exit(! does_int64_snprintf_work());
 }
 EOF
-if { (eval echo configure:7060: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7094: \"$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
     INT64_FORMAT='"%qd"'
@@ -7096,12 +7130,12 @@ EOF
 for ac_func in strtoll strtoq
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7100: checking for $ac_func" >&5
+echo "configure:7134: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7105 "configure"
+#line 7139 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7124,7 +7158,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7128: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7162: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7151,12 +7185,12 @@ done
 for ac_func in strtoull strtouq
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7155: checking for $ac_func" >&5
+echo "configure:7189: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7160 "configure"
+#line 7194 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7179,7 +7213,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7183: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7217: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7207,7 +7241,7 @@ done
 
 
 echo $ac_n "checking size of unsigned long""... $ac_c" 1>&6
-echo "configure:7211: checking size of unsigned long" >&5
+echo "configure:7245: checking size of unsigned long" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_unsigned_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7215,7 +7249,7 @@ else
   ac_cv_sizeof_unsigned_long=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 7219 "configure"
+#line 7253 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -7226,7 +7260,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:7230: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7264: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_unsigned_long=`cat conftestval`
 else
@@ -7252,7 +7286,7 @@ EOF
 
 
 echo $ac_n "checking alignment of short""... $ac_c" 1>&6
-echo "configure:7256: checking alignment of short" >&5
+echo "configure:7290: checking alignment of short" >&5
 if eval "test \"`echo '$''{'pgac_cv_alignof_short'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7260,7 +7294,7 @@ else
   pgac_cv_alignof_short='sizeof(short)'
 else
   cat > conftest.$ac_ext <<EOF
-#line 7264 "configure"
+#line 7298 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 struct { char filler; short field; } mystruct;
@@ -7272,7 +7306,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:7276: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7310: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   pgac_cv_alignof_short=`cat conftestval`
 else
@@ -7292,7 +7326,7 @@ EOF
 
 
 echo $ac_n "checking alignment of int""... $ac_c" 1>&6
-echo "configure:7296: checking alignment of int" >&5
+echo "configure:7330: checking alignment of int" >&5
 if eval "test \"`echo '$''{'pgac_cv_alignof_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7300,7 +7334,7 @@ else
   pgac_cv_alignof_int='sizeof(int)'
 else
   cat > conftest.$ac_ext <<EOF
-#line 7304 "configure"
+#line 7338 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 struct { char filler; int field; } mystruct;
@@ -7312,7 +7346,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:7316: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7350: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   pgac_cv_alignof_int=`cat conftestval`
 else
@@ -7332,7 +7366,7 @@ EOF
 
 
 echo $ac_n "checking alignment of long""... $ac_c" 1>&6
-echo "configure:7336: checking alignment of long" >&5
+echo "configure:7370: checking alignment of long" >&5
 if eval "test \"`echo '$''{'pgac_cv_alignof_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7340,7 +7374,7 @@ else
   pgac_cv_alignof_long='sizeof(long)'
 else
   cat > conftest.$ac_ext <<EOF
-#line 7344 "configure"
+#line 7378 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 struct { char filler; long field; } mystruct;
@@ -7352,7 +7386,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:7356: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7390: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   pgac_cv_alignof_long=`cat conftestval`
 else
@@ -7373,7 +7407,7 @@ EOF
 
 if [ x"$HAVE_LONG_LONG_INT_64" = xyes ] ; then
   echo $ac_n "checking alignment of long long int""... $ac_c" 1>&6
-echo "configure:7377: checking alignment of long long int" >&5
+echo "configure:7411: checking alignment of long long int" >&5
 if eval "test \"`echo '$''{'pgac_cv_alignof_long_long_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7381,7 +7415,7 @@ else
   pgac_cv_alignof_long_long_int='sizeof(long long int)'
 else
   cat > conftest.$ac_ext <<EOF
-#line 7385 "configure"
+#line 7419 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 struct { char filler; long long int field; } mystruct;
@@ -7393,7 +7427,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:7397: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7431: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   pgac_cv_alignof_long_long_int=`cat conftestval`
 else
@@ -7414,7 +7448,7 @@ EOF
 
 fi
 echo $ac_n "checking alignment of double""... $ac_c" 1>&6
-echo "configure:7418: checking alignment of double" >&5
+echo "configure:7452: checking alignment of double" >&5
 if eval "test \"`echo '$''{'pgac_cv_alignof_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7422,7 +7456,7 @@ else
   pgac_cv_alignof_double='sizeof(double)'
 else
   cat > conftest.$ac_ext <<EOF
-#line 7426 "configure"
+#line 7460 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 struct { char filler; double field; } mystruct;
@@ -7434,7 +7468,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:7438: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7472: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   pgac_cv_alignof_double=`cat conftestval`
 else
@@ -7472,12 +7506,12 @@ EOF
 
 
 echo $ac_n "checking for POSIX signal interface""... $ac_c" 1>&6
-echo "configure:7476: checking for POSIX signal interface" >&5
+echo "configure:7510: checking for POSIX signal interface" >&5
 if eval "test \"`echo '$''{'pgac_cv_func_posix_signals'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7481 "configure"
+#line 7515 "configure"
 #include "confdefs.h"
 #include <signal.h>
 
@@ -7488,7 +7522,7 @@ act.sa_flags = SA_RESTART;
 sigaction(0, &act, &oact);
 ; return 0; }
 EOF
-if { (eval echo configure:7492: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7526: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   pgac_cv_func_posix_signals=yes
 else
@@ -7518,7 +7552,7 @@ 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:7522: checking for $ac_word" >&5
+echo "configure:7556: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_TCLSH'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7554,7 +7588,7 @@ test -n "$TCLSH" && break
 done
 
 echo $ac_n "checking for tclConfig.sh""... $ac_c" 1>&6
-echo "configure:7558: checking for tclConfig.sh" >&5
+echo "configure:7592: checking for tclConfig.sh" >&5
 # Let user override test
 if test -z "$TCL_CONFIG_SH"; then
     pgac_test_dirs="$with_tclconfig"
@@ -7587,7 +7621,7 @@ fi
 # Check for Tk configuration script tkConfig.sh
 if test "$with_tk" = yes; then
     echo $ac_n "checking for tkConfig.sh""... $ac_c" 1>&6
-echo "configure:7591: checking for tkConfig.sh" >&5
+echo "configure:7625: checking for tkConfig.sh" >&5
 # Let user override test
 if test -z "$TK_CONFIG_SH"; then
     pgac_test_dirs="$with_tkconfig $with_tclconfig"
@@ -7626,7 +7660,7 @@ do
 # Extract the first word of "$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:7630: checking for $ac_word" >&5
+echo "configure:7664: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_NSGMLS'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7662,7 +7696,7 @@ do
 # Extract the first word of "$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:7666: checking for $ac_word" >&5
+echo "configure:7700: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_JADE'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7693,7 +7727,7 @@ done
 
   
 echo $ac_n "checking for DocBook V3.1""... $ac_c" 1>&6
-echo "configure:7697: checking for DocBook V3.1" >&5
+echo "configure:7731: checking for DocBook V3.1" >&5
 if eval "test \"`echo '$''{'pgac_cv_check_docbook'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7726,7 +7760,7 @@ have_docbook=$pgac_cv_check_docbook
 
 
   echo $ac_n "checking for DocBook stylesheets""... $ac_c" 1>&6
-echo "configure:7730: checking for DocBook stylesheets" >&5
+echo "configure:7764: checking for DocBook stylesheets" >&5
 if eval "test \"`echo '$''{'pgac_cv_path_stylesheets'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7765,7 +7799,7 @@ do
 # Extract the first word of "$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:7769: checking for $ac_word" >&5
+echo "configure:7803: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_SGMLSPL'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
diff --git a/configure.in b/configure.in
index 92ac6b5467..dd03fa5ea1 100644
--- a/configure.in
+++ b/configure.in
@@ -678,8 +678,11 @@ AC_CHECK_LIB(BSD,      main)
 AC_CHECK_LIB(gen,      main)
 AC_CHECK_LIB(PW,       main)
 AC_SEARCH_LIBS(crypt,  crypt)
-AC_CHECK_LIB(z,        inflate)
 AC_CHECK_LIB(bind,     __inet_ntoa)
+dnl only consider libz to be present if we find <zlib.h> as well
+AC_CHECK_HEADER(zlib.h, [
+AC_CHECK_LIB(z,        inflate)
+])
 
 
 if test "$with_krb4" = yes ; then
-- 
2.40.0