diff --git a/configure b/configure
index e2c07351e8f..4cfa96bf7cb 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# From configure.in Revision: 1.266 
+# From configure.in Revision: 1.267 
 
 # Guess values for system-dependent variables and create Makefiles.
 # Generated automatically using autoconf version 2.13 
@@ -740,6 +740,8 @@ fi
 echo "$ac_t""$with_cxx" 1>&6
 
 
+
+
 if test "$check_cxx" = "yes" 
 then
 	for ac_prog in $CCC c++ g++ gcc CC cxx cc++ cl
@@ -747,7 +749,7 @@ do
 # Extract the first word of "$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:751: checking for $ac_word" >&5
+echo "configure:753: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CXX'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -782,7 +784,7 @@ test -n "$CXX" || CXX="notfound"
 		CXX=
 	else
 		echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:786: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
+echo "configure:788: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
 
 ac_ext=C
 # CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -793,12 +795,12 @@ cross_compiling=$ac_cv_prog_cxx_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 797 "configure"
+#line 799 "configure"
 #include "confdefs.h"
 
 int main(){return(0);}
 EOF
-if { (eval echo configure:802: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:804: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   ac_cv_prog_cxx_works=yes
   # If we can't run a trivial program, we are probably using a cross compiler.
   if (./conftest; exit) 2>/dev/null; then
@@ -824,7 +826,7 @@ if test $ac_cv_prog_cxx_works = no; then
   { echo "configure: error: installation or configuration problem: C++ compiler cannot create executables." 1>&2; exit 1; }
 fi
 echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:828: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:830: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
 echo "$ac_t""$ac_cv_prog_cxx_cross" 1>&6
 cross_compiling=$ac_cv_prog_cxx_cross
 
@@ -841,7 +843,7 @@ fi
 # 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:845: checking for $ac_word" >&5
+echo "configure:847: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -871,7 +873,7 @@ if test -z "$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:875: checking for $ac_word" >&5
+echo "configure:877: 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
@@ -922,7 +924,7 @@ 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:926: checking for $ac_word" >&5
+echo "configure:928: 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
@@ -954,7 +956,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:958: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:960: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -965,12 +967,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 969 "configure"
+#line 971 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:974: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:976: \"$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
@@ -996,12 +998,12 @@ 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""... $ac_c" 1>&6
-echo "configure:1000: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:1002: checking whether the C compiler ($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""... $ac_c" 1>&6
-echo "configure:1005: checking whether we are using GNU C" >&5
+echo "configure:1007: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1010,7 +1012,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:1014: \"$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:1016: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -1029,7 +1031,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
 ac_save_CFLAGS="$CFLAGS"
 CFLAGS=
 echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:1033: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:1035: 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
@@ -1063,7 +1065,7 @@ fi
 
 # checks for UNIX variants that set C preprocessor variables
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1067: checking how to run the C preprocessor" >&5
+echo "configure:1069: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1078,13 +1080,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1082 "configure"
+#line 1084 "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:1088: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1090: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1095,13 +1097,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1099 "configure"
+#line 1101 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1105: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1107: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1112,13 +1114,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 1116 "configure"
+#line 1118 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1122: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1124: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1143,9 +1145,9 @@ fi
 echo "$ac_t""$CPP" 1>&6
 
 echo $ac_n "checking for AIX""... $ac_c" 1>&6
-echo "configure:1147: checking for AIX" >&5
+echo "configure:1149: checking for AIX" >&5
 cat > conftest.$ac_ext <<EOF
-#line 1149 "configure"
+#line 1151 "configure"
 #include "confdefs.h"
 #ifdef _AIX
   yes
@@ -1168,17 +1170,17 @@ rm -f conftest*
 
 ac_safe=`echo "minix/config.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for minix/config.h""... $ac_c" 1>&6
-echo "configure:1172: checking for minix/config.h" >&5
+echo "configure:1174: checking for minix/config.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1177 "configure"
+#line 1179 "configure"
 #include "confdefs.h"
 #include <minix/config.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1182: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1184: \"$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*
@@ -1217,12 +1219,12 @@ fi
 
 
 echo $ac_n "checking for Cygwin environment""... $ac_c" 1>&6
-echo "configure:1221: checking for Cygwin environment" >&5
+echo "configure:1223: checking for Cygwin environment" >&5
 if eval "test \"`echo '$''{'ac_cv_cygwin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1226 "configure"
+#line 1228 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -1233,7 +1235,7 @@ int main() {
 return __CYGWIN__;
 ; return 0; }
 EOF
-if { (eval echo configure:1237: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1239: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_cygwin=yes
 else
@@ -1250,19 +1252,19 @@ echo "$ac_t""$ac_cv_cygwin" 1>&6
 CYGWIN=
 test "$ac_cv_cygwin" = yes && CYGWIN=yes
 echo $ac_n "checking for mingw32 environment""... $ac_c" 1>&6
-echo "configure:1254: checking for mingw32 environment" >&5
+echo "configure:1256: checking for mingw32 environment" >&5
 if eval "test \"`echo '$''{'ac_cv_mingw32'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1259 "configure"
+#line 1261 "configure"
 #include "confdefs.h"
 
 int main() {
 return __MINGW32__;
 ; return 0; }
 EOF
-if { (eval echo configure:1266: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1268: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_mingw32=yes
 else
@@ -1281,7 +1283,7 @@ test "$ac_cv_mingw32" = yes && MINGW32=yes
 
 
 echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
-echo "configure:1285: checking for executable suffix" >&5
+echo "configure:1287: checking for executable suffix" >&5
 if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1291,7 +1293,7 @@ else
   rm -f conftest*
   echo 'int main () { return 0; }' > conftest.$ac_ext
   ac_cv_exeext=
-  if { (eval echo configure:1295: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  if { (eval echo configure:1297: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
     for file in conftest.*; do
       case $file in
       *.c | *.o | *.obj) ;;
@@ -1312,7 +1314,7 @@ echo "$ac_t""${ac_cv_exeext}" 1>&6
 ac_exeext=$EXEEXT
 
 echo $ac_n "checking for --with-suffix""... $ac_c" 1>&6
-echo "configure:1316: checking for --with-suffix" >&5
+echo "configure:1318: checking for --with-suffix" >&5
 # Check whether --with-suffix or --without-suffix was given.
 if test "${with_suffix+set}" = set; then
   withval="$with_suffix"
@@ -1360,7 +1362,7 @@ esac
 
 
 echo $ac_n "checking LIBRARY""... $ac_c" 1>&6
-echo "configure:1364: checking LIBRARY" >&5
+echo "configure:1366: checking LIBRARY" >&5
 if test -z "$LIBRARY"
 then
 	LIBRARY='libpython$(VERSION).a'
@@ -1390,7 +1392,7 @@ LDLIBRARYDIR=''
 # linking.
 
 echo $ac_n "checking LINKCC""... $ac_c" 1>&6
-echo "configure:1394: checking LINKCC" >&5
+echo "configure:1396: checking LINKCC" >&5
 if test -z "$LINKCC"
 then
 	case $ac_sys_system in
@@ -1406,7 +1408,7 @@ fi
 echo "$ac_t""$LINKCC" 1>&6
 
 echo $ac_n "checking LDLIBRARY""... $ac_c" 1>&6
-echo "configure:1410: checking LDLIBRARY" >&5
+echo "configure:1412: checking LDLIBRARY" >&5
 
 # DG/UX requires some fancy ld contortions to produce a .so from an .a
 case $MACHDEP in
@@ -1443,7 +1445,7 @@ echo "$ac_t""$LDLIBRARY" 1>&6
 # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1447: checking for $ac_word" >&5
+echo "configure:1449: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1476,7 +1478,7 @@ do
 # Extract the first word of "$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:1480: checking for $ac_word" >&5
+echo "configure:1482: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1546,7 +1548,7 @@ ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
 echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:1550: checking for a BSD compatible install" >&5
+echo "configure:1552: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1611,7 +1613,7 @@ fi
 
 # Check for --with-pydebug
 echo $ac_n "checking for --with-pydebug""... $ac_c" 1>&6
-echo "configure:1615: checking for --with-pydebug" >&5
+echo "configure:1617: checking for --with-pydebug" >&5
 # Check whether --with-pydebug or --without-pydebug was given.
 if test "${with_pydebug+set}" = set; then
   withval="$with_pydebug"
@@ -1672,7 +1674,7 @@ then
 fi
 
 echo $ac_n "checking whether $CC accepts -OPT:Olimit=0""... $ac_c" 1>&6
-echo "configure:1676: checking whether $CC accepts -OPT:Olimit=0" >&5
+echo "configure:1678: checking whether $CC accepts -OPT:Olimit=0" >&5
 if eval "test \"`echo '$''{'ac_cv_opt_olimit_ok'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1682,11 +1684,11 @@ if test "$cross_compiling" = yes; then
   ac_cv_opt_olimit_ok=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 1686 "configure"
+#line 1688 "configure"
 #include "confdefs.h"
 int main() { return 0; }
 EOF
-if { (eval echo configure:1690: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1692: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_opt_olimit_ok=yes
 else
@@ -1709,7 +1711,7 @@ if test $ac_cv_opt_olimit_ok = yes; then
     esac
 else
   echo $ac_n "checking whether $CC accepts -Olimit 1500""... $ac_c" 1>&6
-echo "configure:1713: checking whether $CC accepts -Olimit 1500" >&5
+echo "configure:1715: checking whether $CC accepts -Olimit 1500" >&5
   if eval "test \"`echo '$''{'ac_cv_olimit_ok'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1719,11 +1721,11 @@ else
   ac_cv_olimit_ok=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 1723 "configure"
+#line 1725 "configure"
 #include "confdefs.h"
 int main() { return 0; }
 EOF
-if { (eval echo configure:1727: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1729: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_olimit_ok=yes
 else
@@ -1744,20 +1746,18 @@ fi
   fi
 fi
 
-# -Kpthread, if available, provides the right #defines
-# and linker options to make pthread_create available
-# Some compilers won't report that they do not support -Kpthread,
-# so we need to run a program to see whether it really made the
-# function available.
-echo $ac_n "checking whether $CC accepts -Kpthread""... $ac_c" 1>&6
-echo "configure:1754: checking whether $CC accepts -Kpthread" >&5
-if eval "test \"`echo '$''{'ac_cv_kpthread'+set}'`\" = set"; then
+# On some compilers, pthreads are available without further options
+# (e.g. MacOS X). On some of these systems, the compiler will not
+# complain if unaccepted options are passed (e.g. gcc on Mac OS X).
+# So we have to see first whether pthreads are available without
+# options before we can check whether -Kpthread improves anything.
+echo $ac_n "checking whether pthreads are available without options""... $ac_c" 1>&6
+echo "configure:1756: checking whether pthreads are available without options" >&5
+if eval "test \"`echo '$''{'ac_cv_pthread_is_default'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
-  ac_save_cc="$CC"
-CC="$CC -Kpthread"
-if test "$cross_compiling" = yes; then
-  ac_cv_kpthread=no
+  if test "$cross_compiling" = yes; then
+  ac_cv_pthread_is_default=no
 else
   cat > conftest.$ac_ext <<EOF
 #line 1764 "configure"
@@ -1776,6 +1776,59 @@ int main(){
 
 EOF
 if { (eval echo configure:1779: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+then
+  ac_cv_pthread_is_default=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_pthread_is_default=no
+fi
+rm -fr conftest*
+fi
+
+
+fi
+
+echo "$ac_t""$ac_cv_pthread_is_default" 1>&6
+
+
+if test $ac_cv_pthread_is_default = yes 
+then
+  ac_cv_kpthread=no
+else
+# -Kpthread, if available, provides the right #defines
+# and linker options to make pthread_create available
+# Some compilers won't report that they do not support -Kpthread,
+# so we need to run a program to see whether it really made the
+# function available.
+echo $ac_n "checking whether $CC accepts -Kpthread""... $ac_c" 1>&6
+echo "configure:1807: checking whether $CC accepts -Kpthread" >&5
+if eval "test \"`echo '$''{'ac_cv_kpthread'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_cc="$CC"
+CC="$CC -Kpthread"
+if test "$cross_compiling" = yes; then
+  ac_cv_kpthread=no
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1817 "configure"
+#include "confdefs.h"
+
+#include <pthread.h>
+
+void* routine(void* p){return NULL;}
+
+int main(){
+  pthread_t p;
+  if(pthread_create(&p,NULL,routine,NULL)!=0)
+    return 1;
+  return 0;
+}
+
+EOF
+if { (eval echo configure:1832: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_kpthread=yes
 else
@@ -1791,16 +1844,17 @@ CC="$ac_save_cc"
 fi
 
 echo "$ac_t""$ac_cv_kpthread" 1>&6
+fi
 
 
 # checks for header files
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:1799: checking for ANSI C header files" >&5
+echo "configure:1853: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1804 "configure"
+#line 1858 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -1808,7 +1862,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1812: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1866: \"$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*
@@ -1825,7 +1879,7 @@ 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 1829 "configure"
+#line 1883 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -1843,7 +1897,7 @@ 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 1847 "configure"
+#line 1901 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -1864,7 +1918,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 1868 "configure"
+#line 1922 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -1875,7 +1929,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:1879: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1933: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -1908,17 +1962,17 @@ ndbm.h db1/ndbm.h gdbm/ndbm.h sys/resource.h netpacket/packet.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1912: checking for $ac_hdr" >&5
+echo "configure:1966: 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 1917 "configure"
+#line 1971 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1922: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1976: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1949,12 +2003,12 @@ for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr that defines DIR""... $ac_c" 1>&6
-echo "configure:1953: checking for $ac_hdr that defines DIR" >&5
+echo "configure:2007: checking for $ac_hdr that defines DIR" >&5
 if eval "test \"`echo '$''{'ac_cv_header_dirent_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1958 "configure"
+#line 2012 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_hdr>
@@ -1962,7 +2016,7 @@ int main() {
 DIR *dirp = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:1966: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2020: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_header_dirent_$ac_safe=yes"
 else
@@ -1987,7 +2041,7 @@ done
 # Two versions of opendir et al. are in -ldir and -lx on SCO Xenix.
 if test $ac_header_dirent = dirent.h; then
 echo $ac_n "checking for opendir in -ldir""... $ac_c" 1>&6
-echo "configure:1991: checking for opendir in -ldir" >&5
+echo "configure:2045: checking for opendir in -ldir" >&5
 ac_lib_var=`echo dir'_'opendir | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1995,7 +2049,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldir  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1999 "configure"
+#line 2053 "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
@@ -2006,7 +2060,7 @@ int main() {
 opendir()
 ; return 0; }
 EOF
-if { (eval echo configure:2010: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2064: \"$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
@@ -2028,7 +2082,7 @@ fi
 
 else
 echo $ac_n "checking for opendir in -lx""... $ac_c" 1>&6
-echo "configure:2032: checking for opendir in -lx" >&5
+echo "configure:2086: checking for opendir in -lx" >&5
 ac_lib_var=`echo x'_'opendir | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2036,7 +2090,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lx  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2040 "configure"
+#line 2094 "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
@@ -2047,7 +2101,7 @@ int main() {
 opendir()
 ; return 0; }
 EOF
-if { (eval echo configure:2051: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2105: \"$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
@@ -2073,9 +2127,9 @@ fi
 # checks for typedefs
 was_it_defined=no
 echo $ac_n "checking for clock_t in time.h""... $ac_c" 1>&6
-echo "configure:2077: checking for clock_t in time.h" >&5
+echo "configure:2131: checking for clock_t in time.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 2079 "configure"
+#line 2133 "configure"
 #include "confdefs.h"
 #include <time.h>
 EOF
@@ -2114,12 +2168,12 @@ EOF
 
 # Type availability checks
 echo $ac_n "checking for mode_t""... $ac_c" 1>&6
-echo "configure:2118: checking for mode_t" >&5
+echo "configure:2172: checking for mode_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2123 "configure"
+#line 2177 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2147,12 +2201,12 @@ EOF
 fi
 
 echo $ac_n "checking for off_t""... $ac_c" 1>&6
-echo "configure:2151: checking for off_t" >&5
+echo "configure:2205: checking for off_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_off_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2156 "configure"
+#line 2210 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2180,12 +2234,12 @@ EOF
 fi
 
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:2184: checking for pid_t" >&5
+echo "configure:2238: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2189 "configure"
+#line 2243 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2213,12 +2267,12 @@ EOF
 fi
 
 echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6
-echo "configure:2217: checking return type of signal handlers" >&5
+echo "configure:2271: checking return type of signal handlers" >&5
 if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2222 "configure"
+#line 2276 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
@@ -2235,7 +2289,7 @@ int main() {
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:2239: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2293: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_type_signal=void
 else
@@ -2254,12 +2308,12 @@ EOF
 
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:2258: checking for size_t" >&5
+echo "configure:2312: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2263 "configure"
+#line 2317 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2287,12 +2341,12 @@ EOF
 fi
 
 echo $ac_n "checking for uid_t in sys/types.h""... $ac_c" 1>&6
-echo "configure:2291: checking for uid_t in sys/types.h" >&5
+echo "configure:2345: checking for uid_t in sys/types.h" >&5
 if eval "test \"`echo '$''{'ac_cv_type_uid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2296 "configure"
+#line 2350 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 EOF
@@ -2323,7 +2377,7 @@ fi
 
 # Sizes of various common basic types
 echo $ac_n "checking size of int""... $ac_c" 1>&6
-echo "configure:2327: checking size of int" >&5
+echo "configure:2381: checking size of int" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2331,7 +2385,7 @@ else
   ac_cv_sizeof_int=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 2335 "configure"
+#line 2389 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2342,7 +2396,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2346: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2400: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_int=`cat conftestval`
 else
@@ -2362,7 +2416,7 @@ EOF
 
 
 echo $ac_n "checking size of long""... $ac_c" 1>&6
-echo "configure:2366: checking size of long" >&5
+echo "configure:2420: checking size of long" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2370,7 +2424,7 @@ else
   ac_cv_sizeof_long=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 2374 "configure"
+#line 2428 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2381,7 +2435,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2385: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2439: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_long=`cat conftestval`
 else
@@ -2401,7 +2455,7 @@ EOF
 
 
 echo $ac_n "checking size of void *""... $ac_c" 1>&6
-echo "configure:2405: checking size of void *" >&5
+echo "configure:2459: checking size of void *" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_void_p'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2409,7 +2463,7 @@ else
   ac_cv_sizeof_void_p=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 2413 "configure"
+#line 2467 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2420,7 +2474,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2424: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2478: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_void_p=`cat conftestval`
 else
@@ -2440,7 +2494,7 @@ EOF
 
 
 echo $ac_n "checking size of char""... $ac_c" 1>&6
-echo "configure:2444: checking size of char" >&5
+echo "configure:2498: checking size of char" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_char'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2448,7 +2502,7 @@ else
   ac_cv_sizeof_char=1
 else
   cat > conftest.$ac_ext <<EOF
-#line 2452 "configure"
+#line 2506 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2459,7 +2513,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2463: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2517: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_char=`cat conftestval`
 else
@@ -2479,7 +2533,7 @@ EOF
 
 
 echo $ac_n "checking size of short""... $ac_c" 1>&6
-echo "configure:2483: checking size of short" >&5
+echo "configure:2537: checking size of short" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_short'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2487,7 +2541,7 @@ else
   ac_cv_sizeof_short=2
 else
   cat > conftest.$ac_ext <<EOF
-#line 2491 "configure"
+#line 2545 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2498,7 +2552,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2502: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2556: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_short=`cat conftestval`
 else
@@ -2518,7 +2572,7 @@ EOF
 
 
 echo $ac_n "checking size of float""... $ac_c" 1>&6
-echo "configure:2522: checking size of float" >&5
+echo "configure:2576: checking size of float" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_float'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2526,7 +2580,7 @@ else
   ac_cv_sizeof_float=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 2530 "configure"
+#line 2584 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2537,7 +2591,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2541: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2595: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_float=`cat conftestval`
 else
@@ -2557,7 +2611,7 @@ EOF
 
 
 echo $ac_n "checking size of double""... $ac_c" 1>&6
-echo "configure:2561: checking size of double" >&5
+echo "configure:2615: checking size of double" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2565,7 +2619,7 @@ else
   ac_cv_sizeof_double=8
 else
   cat > conftest.$ac_ext <<EOF
-#line 2569 "configure"
+#line 2623 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2576,7 +2630,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2580: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2634: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_double=`cat conftestval`
 else
@@ -2596,7 +2650,7 @@ EOF
 
 
 echo $ac_n "checking size of fpos_t""... $ac_c" 1>&6
-echo "configure:2600: checking size of fpos_t" >&5
+echo "configure:2654: checking size of fpos_t" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_fpos_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2604,7 +2658,7 @@ else
   ac_cv_sizeof_fpos_t=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 2608 "configure"
+#line 2662 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2615,7 +2669,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2619: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2673: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_fpos_t=`cat conftestval`
 else
@@ -2636,17 +2690,17 @@ EOF
 
 
 echo $ac_n "checking for long long support""... $ac_c" 1>&6
-echo "configure:2640: checking for long long support" >&5
+echo "configure:2694: checking for long long support" >&5
 have_long_long=no
 cat > conftest.$ac_ext <<EOF
-#line 2643 "configure"
+#line 2697 "configure"
 #include "confdefs.h"
 
 int main() {
 long long x; x = (long long)0;
 ; return 0; }
 EOF
-if { (eval echo configure:2650: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2704: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_LONG_LONG 1
@@ -2660,7 +2714,7 @@ rm -f conftest*
 echo "$ac_t""$have_long_long" 1>&6
 if test "$have_long_long" = yes ; then
 echo $ac_n "checking size of long long""... $ac_c" 1>&6
-echo "configure:2664: checking size of long long" >&5
+echo "configure:2718: checking size of long long" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_long_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2668,7 +2722,7 @@ else
   ac_cv_sizeof_long_long=8
 else
   cat > conftest.$ac_ext <<EOF
-#line 2672 "configure"
+#line 2726 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2679,7 +2733,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2683: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2737: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_long_long=`cat conftestval`
 else
@@ -2701,17 +2755,17 @@ EOF
 fi
 
 echo $ac_n "checking for uintptr_t support""... $ac_c" 1>&6
-echo "configure:2705: checking for uintptr_t support" >&5
+echo "configure:2759: checking for uintptr_t support" >&5
 have_uintptr_t=no
 cat > conftest.$ac_ext <<EOF
-#line 2708 "configure"
+#line 2762 "configure"
 #include "confdefs.h"
 
 int main() {
 uintptr_t x; x = (uintptr_t)0;
 ; return 0; }
 EOF
-if { (eval echo configure:2715: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2769: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_UINTPTR_T 1
@@ -2725,7 +2779,7 @@ rm -f conftest*
 echo "$ac_t""$have_uintptr_t" 1>&6
 if test "$have_uintptr_t" = yes ; then
 echo $ac_n "checking size of uintptr_t""... $ac_c" 1>&6
-echo "configure:2729: checking size of uintptr_t" >&5
+echo "configure:2783: checking size of uintptr_t" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_uintptr_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2733,7 +2787,7 @@ else
   ac_cv_sizeof_uintptr_t=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 2737 "configure"
+#line 2791 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -2744,7 +2798,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2748: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2802: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_uintptr_t=`cat conftestval`
 else
@@ -2767,7 +2821,7 @@ fi
 
 # Hmph. AC_CHECK_SIZEOF() doesn't include <sys/types.h>.
 echo $ac_n "checking size of off_t""... $ac_c" 1>&6
-echo "configure:2771: checking size of off_t" >&5
+echo "configure:2825: checking size of off_t" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_off_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2775,7 +2829,7 @@ else
   ac_cv_sizeof_off_t=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 2779 "configure"
+#line 2833 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <sys/types.h>
@@ -2787,7 +2841,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2791: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2845: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_off_t=`cat conftestval`
 else
@@ -2809,7 +2863,7 @@ EOF
 
 
 echo $ac_n "checking whether to enable large file support""... $ac_c" 1>&6
-echo "configure:2813: checking whether to enable large file support" >&5
+echo "configure:2867: checking whether to enable large file support" >&5
 if test "$have_long_long" = yes -a \
 	"$ac_cv_sizeof_off_t" -gt "$ac_cv_sizeof_long" -a \
 	"$ac_cv_sizeof_long_long" -ge "$ac_cv_sizeof_off_t"; then
@@ -2824,7 +2878,7 @@ fi
 
 # AC_CHECK_SIZEOF() doesn't include <time.h>.
 echo $ac_n "checking size of time_t""... $ac_c" 1>&6
-echo "configure:2828: checking size of time_t" >&5
+echo "configure:2882: checking size of time_t" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_time_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2832,7 +2886,7 @@ else
   ac_cv_sizeof_time_t=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 2836 "configure"
+#line 2890 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <time.h>
@@ -2844,7 +2898,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2848: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2902: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_time_t=`cat conftestval`
 else
@@ -2872,17 +2926,17 @@ if test "$ac_cv_kpthread" = "yes"
 then CC="$CC -Kpthread"
 fi
 echo $ac_n "checking for pthread_t""... $ac_c" 1>&6
-echo "configure:2876: checking for pthread_t" >&5
+echo "configure:2930: checking for pthread_t" >&5
 have_pthread_t=no
 cat > conftest.$ac_ext <<EOF
-#line 2879 "configure"
+#line 2933 "configure"
 #include "confdefs.h"
 #include <pthread.h>
 int main() {
 pthread_t x; x = *(pthread_t*)0;
 ; return 0; }
 EOF
-if { (eval echo configure:2886: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2940: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   have_pthread_t=yes
 else
@@ -2894,7 +2948,7 @@ echo "$ac_t""$have_pthread_t" 1>&6
 if test "$have_pthread_t" = yes ; then
   # AC_CHECK_SIZEOF() doesn't include <pthread.h>.
   echo $ac_n "checking size of pthread_t""... $ac_c" 1>&6
-echo "configure:2898: checking size of pthread_t" >&5
+echo "configure:2952: checking size of pthread_t" >&5
   if eval "test \"`echo '$''{'ac_cv_sizeof_pthread_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2902,7 +2956,7 @@ else
   ac_cv_sizeof_pthread_t=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 2906 "configure"
+#line 2960 "configure"
 #include "confdefs.h"
 #include <stdio.h>
   #include <pthread.h>
@@ -2914,7 +2968,7 @@ else
     exit(0);
   }
 EOF
-if { (eval echo configure:2918: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2972: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_pthread_t=`cat conftestval`
 else
@@ -2938,7 +2992,7 @@ fi
 CC="$ac_save_cc"
 
 echo $ac_n "checking for --enable-toolbox-glue""... $ac_c" 1>&6
-echo "configure:2942: checking for --enable-toolbox-glue" >&5
+echo "configure:2996: checking for --enable-toolbox-glue" >&5
 # Check whether --enable-toolbox-glue or --disable-toolbox-glue was given.
 if test "${enable_toolbox_glue+set}" = set; then
   enableval="$enable_toolbox_glue"
@@ -2990,7 +3044,7 @@ case $ac_sys_system/$ac_sys_release in
 esac
 
 echo $ac_n "checking for --enable-framework""... $ac_c" 1>&6
-echo "configure:2994: checking for --enable-framework" >&5
+echo "configure:3048: checking for --enable-framework" >&5
 if test "$enable_framework"
 then
 	OPT="$OPT -fno-common -dynamic"
@@ -3013,7 +3067,7 @@ else
 fi
 
 echo $ac_n "checking for dyld""... $ac_c" 1>&6
-echo "configure:3017: checking for dyld" >&5
+echo "configure:3071: checking for dyld" >&5
 case $ac_sys_system/$ac_sys_release in
   Darwin/*)
   	cat >> confdefs.h <<\EOF
@@ -3036,7 +3090,7 @@ esac
 # SO is the extension of shared libraries `(including the dot!)
 # -- usually .so, .sl on HP-UX, .dll on Cygwin
 echo $ac_n "checking SO""... $ac_c" 1>&6
-echo "configure:3040: checking SO" >&5
+echo "configure:3094: checking SO" >&5
 if test -z "$SO"
 then
 	case $ac_sys_system in
@@ -3051,7 +3105,7 @@ echo "$ac_t""$SO" 1>&6
 # (Shared libraries in this instance are shared modules to be loaded into
 # Python, as opposed to building Python itself as a shared library.)
 echo $ac_n "checking LDSHARED""... $ac_c" 1>&6
-echo "configure:3055: checking LDSHARED" >&5
+echo "configure:3109: checking LDSHARED" >&5
 if test -z "$LDSHARED"
 then
 	case $ac_sys_system/$ac_sys_release in
@@ -3118,7 +3172,7 @@ BLDSHARED=${BLDSHARED-$LDSHARED}
 # CCSHARED are the C *flags* used to create objects to go into a shared
 # library (module) -- this is only needed for a few systems
 echo $ac_n "checking CCSHARED""... $ac_c" 1>&6
-echo "configure:3122: checking CCSHARED" >&5
+echo "configure:3176: checking CCSHARED" >&5
 if test -z "$CCSHARED"
 then
 	case $ac_sys_system/$ac_sys_release in
@@ -3150,7 +3204,7 @@ echo "$ac_t""$CCSHARED" 1>&6
 # LINKFORSHARED are the flags passed to the $(CC) command that links
 # the python executable -- this is only needed for a few systems
 echo $ac_n "checking LINKFORSHARED""... $ac_c" 1>&6
-echo "configure:3154: checking LINKFORSHARED" >&5
+echo "configure:3208: checking LINKFORSHARED" >&5
 if test -z "$LINKFORSHARED"
 then
 	case $ac_sys_system/$ac_sys_release in
@@ -3195,7 +3249,7 @@ echo "$ac_t""$LINKFORSHARED" 1>&6
 
 
 echo $ac_n "checking CFLAGSFORSHARED""... $ac_c" 1>&6
-echo "configure:3199: checking CFLAGSFORSHARED" >&5
+echo "configure:3253: checking CFLAGSFORSHARED" >&5
 if test ! "$LIBRARY" = "$LDLIBRARY"
 then
 	case $ac_sys_system in
@@ -3211,7 +3265,7 @@ echo "$ac_t""$CFLAGSFORSHARED" 1>&6
 
 # checks for libraries
 echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
-echo "configure:3215: checking for dlopen in -ldl" >&5
+echo "configure:3269: checking for dlopen in -ldl" >&5
 ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3219,7 +3273,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3223 "configure"
+#line 3277 "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
@@ -3230,7 +3284,7 @@ int main() {
 dlopen()
 ; return 0; }
 EOF
-if { (eval echo configure:3234: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3288: \"$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
@@ -3258,7 +3312,7 @@ else
 fi
 	# Dynamic linking for SunOS/Solaris and SYSV
 echo $ac_n "checking for shl_load in -ldld""... $ac_c" 1>&6
-echo "configure:3262: checking for shl_load in -ldld" >&5
+echo "configure:3316: checking for shl_load in -ldld" >&5
 ac_lib_var=`echo dld'_'shl_load | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3266,7 +3320,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldld  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3270 "configure"
+#line 3324 "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
@@ -3277,7 +3331,7 @@ int main() {
 shl_load()
 ; return 0; }
 EOF
-if { (eval echo configure:3281: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3335: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3308,16 +3362,16 @@ fi
 # checks for system dependent C++ extensions support
 case "$ac_sys_system" in
 	AIX*)	echo $ac_n "checking for genuine AIX C++ extensions support""... $ac_c" 1>&6
-echo "configure:3312: checking for genuine AIX C++ extensions support" >&5
+echo "configure:3366: checking for genuine AIX C++ extensions support" >&5
 		cat > conftest.$ac_ext <<EOF
-#line 3314 "configure"
+#line 3368 "configure"
 #include "confdefs.h"
 #include "/usr/lpp/xlC/include/load.h"
 int main() {
 loadAndInit("", 0, "")
 ; return 0; }
 EOF
-if { (eval echo configure:3321: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3375: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define AIX_GENUINE_CPLUSPLUS 1
@@ -3341,7 +3395,7 @@ case "$ac_sys_system" in
 IRIX*) ;;
 *)
 echo $ac_n "checking for t_open in -lnsl""... $ac_c" 1>&6
-echo "configure:3345: checking for t_open in -lnsl" >&5
+echo "configure:3399: checking for t_open in -lnsl" >&5
 ac_lib_var=`echo nsl'_'t_open | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3349,7 +3403,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3353 "configure"
+#line 3407 "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
@@ -3360,7 +3414,7 @@ int main() {
 t_open()
 ; return 0; }
 EOF
-if { (eval echo configure:3364: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3418: \"$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
@@ -3381,7 +3435,7 @@ else
 fi
  # SVR4
 echo $ac_n "checking for socket in -lsocket""... $ac_c" 1>&6
-echo "configure:3385: checking for socket in -lsocket" >&5
+echo "configure:3439: checking for socket in -lsocket" >&5
 ac_lib_var=`echo socket'_'socket | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3389,7 +3443,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket $LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3393 "configure"
+#line 3447 "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
@@ -3400,7 +3454,7 @@ int main() {
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:3404: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3458: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3425,7 +3479,7 @@ esac
 case "$ac_sys_system" in
 BeOS*)
 echo $ac_n "checking for socket in -lnet""... $ac_c" 1>&6
-echo "configure:3429: checking for socket in -lnet" >&5
+echo "configure:3483: checking for socket in -lnet" >&5
 ac_lib_var=`echo net'_'socket | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3433,7 +3487,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnet $LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3437 "configure"
+#line 3491 "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
@@ -3444,7 +3498,7 @@ int main() {
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:3448: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3502: \"$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
@@ -3468,7 +3522,7 @@ fi
 esac
 
 echo $ac_n "checking for --with-libs""... $ac_c" 1>&6
-echo "configure:3472: checking for --with-libs" >&5
+echo "configure:3526: checking for --with-libs" >&5
 # Check whether --with-libs or --without-libs was given.
 if test "${with_libs+set}" = set; then
   withval="$with_libs"
@@ -3485,7 +3539,7 @@ fi
 
 
 echo $ac_n "checking for --with-signal-module""... $ac_c" 1>&6
-echo "configure:3489: checking for --with-signal-module" >&5
+echo "configure:3543: checking for --with-signal-module" >&5
 # Check whether --with-signal-module or --without-signal-module was given.
 if test "${with_signal_module+set}" = set; then
   withval="$with_signal_module"
@@ -3511,7 +3565,7 @@ fi
 USE_THREAD_MODULE=""
 
 echo $ac_n "checking for --with-dec-threads""... $ac_c" 1>&6
-echo "configure:3515: checking for --with-dec-threads" >&5
+echo "configure:3569: checking for --with-dec-threads" >&5
 
 # Check whether --with-dec-threads or --without-dec-threads was given.
 if test "${with_dec_threads+set}" = set; then
@@ -3528,7 +3582,7 @@ fi
 
 
 echo $ac_n "checking for --with-threads""... $ac_c" 1>&6
-echo "configure:3532: checking for --with-threads" >&5
+echo "configure:3586: checking for --with-threads" >&5
 # Check whether --with-threads or --without-threads was given.
 if test "${with_threads+set}" = set; then
   withval="$with_threads"
@@ -3553,6 +3607,23 @@ echo "$ac_t""$with_threads" 1>&6
 if test "$with_threads" = "no"
 then
     USE_THREAD_MODULE="#"
+elif test "$ac_cv_pthread_is_default" = yes
+then
+    cat >> confdefs.h <<\EOF
+#define WITH_THREAD 1
+EOF
+
+    cat >> confdefs.h <<\EOF
+#define _POSIX_THREADS 1
+EOF
+
+    # Defining _REENTRANT on system with POSIX threads should not hurt.
+    cat >> confdefs.h <<\EOF
+#define _REENTRANT 1
+EOF
+
+    posix_threads=yes
+    LIBOBJS="$LIBOBJS thread.o"    
 elif test "$ac_cv_kpthread" = "yes"
 then
     CC="$CC -Kpthread"
@@ -3579,17 +3650,17 @@ EOF
 
     ac_safe=`echo "mach/cthreads.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for mach/cthreads.h""... $ac_c" 1>&6
-echo "configure:3583: checking for mach/cthreads.h" >&5
+echo "configure:3654: checking for mach/cthreads.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3588 "configure"
+#line 3659 "configure"
 #include "confdefs.h"
 #include <mach/cthreads.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3593: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3664: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3618,7 +3689,7 @@ else
   echo "$ac_t""no" 1>&6
 
     echo $ac_n "checking for --with-pth""... $ac_c" 1>&6
-echo "configure:3622: checking for --with-pth" >&5
+echo "configure:3693: checking for --with-pth" >&5
     # Check whether --with-pth or --without-pth was given.
 if test "${with_pth+set}" = set; then
   withval="$with_pth"
@@ -3644,9 +3715,9 @@ else
     _libs=$LIBS
     LIBS="$LIBS -lpthread"
     echo $ac_n "checking for pthread_create in -lpthread""... $ac_c" 1>&6
-echo "configure:3648: checking for pthread_create in -lpthread" >&5
+echo "configure:3719: checking for pthread_create in -lpthread" >&5
     cat > conftest.$ac_ext <<EOF
-#line 3650 "configure"
+#line 3721 "configure"
 #include "confdefs.h"
 #include <pthread.h>
 
@@ -3656,7 +3727,7 @@ int main() {
 pthread_create (NULL, NULL, start_routine, NULL)
 ; return 0; }
 EOF
-if { (eval echo configure:3660: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3731: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   
     echo "$ac_t""yes" 1>&6
@@ -3681,12 +3752,12 @@ else
   
     LIBS=$_libs
     echo $ac_n "checking for pthread_detach""... $ac_c" 1>&6
-echo "configure:3685: checking for pthread_detach" >&5
+echo "configure:3756: checking for pthread_detach" >&5
 if eval "test \"`echo '$''{'ac_cv_func_pthread_detach'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3690 "configure"
+#line 3761 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char pthread_detach(); below.  */
@@ -3709,7 +3780,7 @@ pthread_detach();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3713: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3784: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_pthread_detach=yes"
 else
@@ -3742,17 +3813,17 @@ else
 
     ac_safe=`echo "kernel/OS.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for kernel/OS.h""... $ac_c" 1>&6
-echo "configure:3746: checking for kernel/OS.h" >&5
+echo "configure:3817: checking for kernel/OS.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3751 "configure"
+#line 3822 "configure"
 #include "confdefs.h"
 #include <kernel/OS.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:3756: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:3827: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -3781,7 +3852,7 @@ else
   echo "$ac_t""no" 1>&6
 
     echo $ac_n "checking for pthread_create in -lpthreads""... $ac_c" 1>&6
-echo "configure:3785: checking for pthread_create in -lpthreads" >&5
+echo "configure:3856: checking for pthread_create in -lpthreads" >&5
 ac_lib_var=`echo pthreads'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3789,7 +3860,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthreads  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3793 "configure"
+#line 3864 "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
@@ -3800,7 +3871,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3804: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3875: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3830,7 +3901,7 @@ else
   echo "$ac_t""no" 1>&6
 
     echo $ac_n "checking for pthread_create in -lc_r""... $ac_c" 1>&6
-echo "configure:3834: checking for pthread_create in -lc_r" >&5
+echo "configure:3905: checking for pthread_create in -lc_r" >&5
 ac_lib_var=`echo c_r'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3838,7 +3909,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lc_r  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3842 "configure"
+#line 3913 "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
@@ -3849,7 +3920,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3853: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3924: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3879,7 +3950,7 @@ else
   echo "$ac_t""no" 1>&6
 
     echo $ac_n "checking for __d6_pthread_create in -lthread""... $ac_c" 1>&6
-echo "configure:3883: checking for __d6_pthread_create in -lthread" >&5
+echo "configure:3954: checking for __d6_pthread_create in -lthread" >&5
 ac_lib_var=`echo thread'_'__d6_pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3887,7 +3958,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3891 "configure"
+#line 3962 "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
@@ -3898,7 +3969,7 @@ int main() {
 __d6_pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3902: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3973: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3928,7 +3999,7 @@ else
   echo "$ac_t""no" 1>&6
 
     echo $ac_n "checking for __pthread_create_system in -lpthread""... $ac_c" 1>&6
-echo "configure:3932: checking for __pthread_create_system in -lpthread" >&5
+echo "configure:4003: checking for __pthread_create_system in -lpthread" >&5
 ac_lib_var=`echo pthread'_'__pthread_create_system | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3936,7 +4007,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3940 "configure"
+#line 4011 "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
@@ -3947,7 +4018,7 @@ int main() {
 __pthread_create_system()
 ; return 0; }
 EOF
-if { (eval echo configure:3951: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4022: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3977,7 +4048,7 @@ else
   echo "$ac_t""no" 1>&6
 
     echo $ac_n "checking for pthread_create in -lcma""... $ac_c" 1>&6
-echo "configure:3981: checking for pthread_create in -lcma" >&5
+echo "configure:4052: checking for pthread_create in -lcma" >&5
 ac_lib_var=`echo cma'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3985,7 +4056,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lcma  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3989 "configure"
+#line 4060 "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
@@ -3996,7 +4067,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:4000: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4071: \"$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
@@ -4050,7 +4121,7 @@ fi
 
     if test "$posix_threads" = "yes"; then
       echo $ac_n "checking if PTHREAD_SCOPE_SYSTEM is supported""... $ac_c" 1>&6
-echo "configure:4054: checking if PTHREAD_SCOPE_SYSTEM is supported" >&5
+echo "configure:4125: checking if PTHREAD_SCOPE_SYSTEM is supported" >&5
       if eval "test \"`echo '$''{'ac_cv_pthread_system_supported'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -4058,7 +4129,7 @@ else
   ac_cv_pthread_system_supported=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 4062 "configure"
+#line 4133 "configure"
 #include "confdefs.h"
 #include <pthread.h>
       void *foo(void *parm) {
@@ -4072,7 +4143,7 @@ else
         exit(0);
       }
 EOF
-if { (eval echo configure:4076: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4147: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_pthread_system_supported=yes
 else
@@ -4097,7 +4168,7 @@ EOF
     fi
 
     echo $ac_n "checking for usconfig in -lmpc""... $ac_c" 1>&6
-echo "configure:4101: checking for usconfig in -lmpc" >&5
+echo "configure:4172: checking for usconfig in -lmpc" >&5
 ac_lib_var=`echo mpc'_'usconfig | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4105,7 +4176,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lmpc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4109 "configure"
+#line 4180 "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
@@ -4116,7 +4187,7 @@ int main() {
 usconfig()
 ; return 0; }
 EOF
-if { (eval echo configure:4120: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4191: \"$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
@@ -4143,7 +4214,7 @@ else
 fi
 
     echo $ac_n "checking for thr_create in -lthread""... $ac_c" 1>&6
-echo "configure:4147: checking for thr_create in -lthread" >&5
+echo "configure:4218: checking for thr_create in -lthread" >&5
 ac_lib_var=`echo thread'_'thr_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4151,7 +4222,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4155 "configure"
+#line 4226 "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
@@ -4162,7 +4233,7 @@ int main() {
 thr_create()
 ; return 0; }
 EOF
-if { (eval echo configure:4166: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4237: \"$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
@@ -4201,7 +4272,7 @@ fi
 
 # Check for enable-ipv6
 echo $ac_n "checking if --enable-ipv6 is specified""... $ac_c" 1>&6
-echo "configure:4205: checking if --enable-ipv6 is specified" >&5
+echo "configure:4276: checking if --enable-ipv6 is specified" >&5
 # Check whether --enable-ipv6 or --disable-ipv6 was given.
 if test "${enable_ipv6+set}" = set; then
   enableval="$enable_ipv6"
@@ -4226,7 +4297,7 @@ else
 
 else
   cat > conftest.$ac_ext <<EOF
-#line 4230 "configure"
+#line 4301 "configure"
 #include "confdefs.h"
  /* AF_INET6 available check */
 #include <sys/types.h>
@@ -4240,7 +4311,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:4244: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:4315: \"$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
   ipv6=yes
@@ -4257,9 +4328,9 @@ fi
 
 if test "$ipv6" = "yes"; then
 	echo $ac_n "checking if RFC2553 API is available""... $ac_c" 1>&6
-echo "configure:4261: checking if RFC2553 API is available" >&5
+echo "configure:4332: checking if RFC2553 API is available" >&5
 	cat > conftest.$ac_ext <<EOF
-#line 4263 "configure"
+#line 4334 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <netinet/in.h>
@@ -4268,7 +4339,7 @@ struct sockaddr_in6 x;
 x.sin6_scope_id;
 ; return 0; }
 EOF
-if { (eval echo configure:4272: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:4343: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 		ipv6=yes
@@ -4298,15 +4369,15 @@ ipv6trylibc=no
 
 if test "$ipv6" = "yes"; then
 	echo $ac_n "checking ipv6 stack type""... $ac_c" 1>&6
-echo "configure:4302: checking ipv6 stack type" >&5
+echo "configure:4373: checking ipv6 stack type" >&5
 	for i in inria kame linux-glibc linux-inet6 solaris toshiba v6d zeta;
 	do
 		case $i in
 		inria)
 						cat > conftest.$ac_ext <<EOF
-#line 4308 "configure"
+#line 4379 "configure"
 #include "confdefs.h"
-dnl
+
 #include <netinet/in.h>
 #ifdef IPV6_INRIA_VERSION
 yes
@@ -4323,9 +4394,9 @@ rm -f conftest*
 			;;
 		kame)
 						cat > conftest.$ac_ext <<EOF
-#line 4327 "configure"
+#line 4398 "configure"
 #include "confdefs.h"
-dnl
+
 #include <netinet/in.h>
 #ifdef __KAME__
 yes
@@ -4345,9 +4416,9 @@ rm -f conftest*
 			;;
 		linux-glibc)
 						cat > conftest.$ac_ext <<EOF
-#line 4349 "configure"
+#line 4420 "configure"
 #include "confdefs.h"
-dnl
+
 #include <features.h>
 #if defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2))
 yes
@@ -4382,9 +4453,9 @@ rm -f conftest*
 			;;
 		toshiba)
 			cat > conftest.$ac_ext <<EOF
-#line 4386 "configure"
+#line 4457 "configure"
 #include "confdefs.h"
-dnl
+
 #include <sys/param.h>
 #ifdef _TOSHIBA_INET6
 yes
@@ -4403,9 +4474,9 @@ rm -f conftest*
 			;;
 		v6d)
 			cat > conftest.$ac_ext <<EOF
-#line 4407 "configure"
+#line 4478 "configure"
 #include "confdefs.h"
-dnl
+
 #include </usr/local/v6/include/sys/v6config.h>
 #ifdef __V6D__
 yes
@@ -4424,9 +4495,9 @@ rm -f conftest*
 			;;
 		zeta)
 			cat > conftest.$ac_ext <<EOF
-#line 4428 "configure"
+#line 4499 "configure"
 #include "confdefs.h"
-dnl
+
 #include <sys/param.h>
 #ifdef _ZETA_MINAMI_INET6
 yes
@@ -4469,7 +4540,7 @@ fi
 
 # Check for GC support
 echo $ac_n "checking for --with-cycle-gc""... $ac_c" 1>&6
-echo "configure:4473: checking for --with-cycle-gc" >&5
+echo "configure:4544: checking for --with-cycle-gc" >&5
 # Check whether --with-cycle-gc or --without-cycle-gc was given.
 if test "${with_cycle_gc+set}" = set; then
   withval="$with_cycle_gc"
@@ -4491,7 +4562,7 @@ echo "$ac_t""$with_cycle_gc" 1>&6
 
 # Check for Python-specific malloc support
 echo $ac_n "checking for --with-pymalloc""... $ac_c" 1>&6
-echo "configure:4495: checking for --with-pymalloc" >&5
+echo "configure:4566: checking for --with-pymalloc" >&5
 # Check whether --with-pymalloc or --without-pymalloc was given.
 if test "${with_pymalloc+set}" = set; then
   withval="$with_pymalloc"
@@ -4510,7 +4581,7 @@ fi
 
 # Check for --with-wctype-functions
 echo $ac_n "checking for --with-wctype-functions""... $ac_c" 1>&6
-echo "configure:4514: checking for --with-wctype-functions" >&5
+echo "configure:4585: checking for --with-wctype-functions" >&5
 # Check whether --with-wctype-functions or --without-wctype-functions was given.
 if test "${with_wctype_functions+set}" = set; then
   withval="$with_wctype_functions"
@@ -4532,7 +4603,7 @@ fi
 DLINCLDIR=.
 
 echo $ac_n "checking for --with-sgi-dl""... $ac_c" 1>&6
-echo "configure:4536: checking for --with-sgi-dl" >&5
+echo "configure:4607: checking for --with-sgi-dl" >&5
 # Check whether --with-sgi-dl or --without-sgi-dl was given.
 if test "${with_sgi_dl+set}" = set; then
   withval="$with_sgi_dl"
@@ -4556,7 +4627,7 @@ fi
 
 
 echo $ac_n "checking for --with-dl-dld""... $ac_c" 1>&6
-echo "configure:4560: checking for --with-dl-dld" >&5
+echo "configure:4631: checking for --with-dl-dld" >&5
 # Check whether --with-dl-dld or --without-dl-dld was given.
 if test "${with_dl_dld+set}" = set; then
   withval="$with_dl_dld"
@@ -4585,12 +4656,12 @@ fi
 for ac_func in dlopen
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4589: checking for $ac_func" >&5
+echo "configure:4660: 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 4594 "configure"
+#line 4665 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4613,7 +4684,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4617: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4688: \"$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
@@ -4642,7 +4713,7 @@ done
 # loading of modules.
 
 echo $ac_n "checking DYNLOADFILE""... $ac_c" 1>&6
-echo "configure:4646: checking DYNLOADFILE" >&5
+echo "configure:4717: checking DYNLOADFILE" >&5
 if test -z "$DYNLOADFILE"
 then
 	case $ac_sys_system/$ac_sys_release in
@@ -4673,7 +4744,7 @@ fi
 
 
 echo $ac_n "checking MACHDEP_OBJS""... $ac_c" 1>&6
-echo "configure:4677: checking MACHDEP_OBJS" >&5
+echo "configure:4748: checking MACHDEP_OBJS" >&5
 if test -z "$MACHDEP_OBJS"
 then
 	MACHDEP_OBJS=$extra_machdep_objs
@@ -4696,12 +4767,12 @@ for ac_func in alarm chown chroot clock confstr ctermid ctermid_r execv \
  truncate uname waitpid _getpty getpriority
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4700: checking for $ac_func" >&5
+echo "configure:4771: 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 4705 "configure"
+#line 4776 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4724,7 +4795,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4728: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4799: \"$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
@@ -4754,12 +4825,12 @@ done
 for ac_func in openpty
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4758: checking for $ac_func" >&5
+echo "configure:4829: 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 4763 "configure"
+#line 4834 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4782,7 +4853,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4786: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4857: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4804,7 +4875,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for openpty in -lutil""... $ac_c" 1>&6
-echo "configure:4808: checking for openpty in -lutil" >&5
+echo "configure:4879: checking for openpty in -lutil" >&5
 ac_lib_var=`echo util'_'openpty | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4812,7 +4883,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lutil  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4816 "configure"
+#line 4887 "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
@@ -4823,7 +4894,7 @@ int main() {
 openpty()
 ; return 0; }
 EOF
-if { (eval echo configure:4827: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4898: \"$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
@@ -4852,12 +4923,12 @@ done
 for ac_func in forkpty
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4856: checking for $ac_func" >&5
+echo "configure:4927: 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 4861 "configure"
+#line 4932 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4880,7 +4951,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4884: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4955: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -4902,7 +4973,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for forkpty in -lutil""... $ac_c" 1>&6
-echo "configure:4906: checking for forkpty in -lutil" >&5
+echo "configure:4977: checking for forkpty in -lutil" >&5
 ac_lib_var=`echo util'_'forkpty | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -4910,7 +4981,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lutil  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 4914 "configure"
+#line 4985 "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
@@ -4921,7 +4992,7 @@ int main() {
 forkpty()
 ; return 0; }
 EOF
-if { (eval echo configure:4925: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4996: \"$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
@@ -4952,12 +5023,12 @@ done
 for ac_func in fseek64 fseeko fstatvfs ftell64 ftello statvfs
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:4956: checking for $ac_func" >&5
+echo "configure:5027: 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 4961 "configure"
+#line 5032 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -4980,7 +5051,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4984: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5055: \"$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
@@ -5008,12 +5079,12 @@ done
 for ac_func in dup2 getcwd strdup strerror memmove
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5012: checking for $ac_func" >&5
+echo "configure:5083: 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 5017 "configure"
+#line 5088 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5036,7 +5107,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5040: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5111: \"$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
@@ -5065,12 +5136,12 @@ done
 for ac_func in getpgrp
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5069: checking for $ac_func" >&5
+echo "configure:5140: 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 5074 "configure"
+#line 5145 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5093,7 +5164,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5097: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5168: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5112,14 +5183,14 @@ if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
 #define $ac_tr_func 1
 EOF
  cat > conftest.$ac_ext <<EOF
-#line 5116 "configure"
+#line 5187 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 int main() {
 getpgrp(0);
 ; return 0; }
 EOF
-if { (eval echo configure:5123: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5194: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define GETPGRP_HAVE_ARG 1
@@ -5138,12 +5209,12 @@ done
 for ac_func in setpgrp
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5142: checking for $ac_func" >&5
+echo "configure:5213: 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 5147 "configure"
+#line 5218 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5166,7 +5237,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5170: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5241: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5185,14 +5256,14 @@ if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
 #define $ac_tr_func 1
 EOF
  cat > conftest.$ac_ext <<EOF
-#line 5189 "configure"
+#line 5260 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 int main() {
 setpgrp(0,0);
 ; return 0; }
 EOF
-if { (eval echo configure:5196: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5267: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define SETPGRP_HAVE_ARG 1
@@ -5211,12 +5282,12 @@ done
 for ac_func in gettimeofday
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5215: checking for $ac_func" >&5
+echo "configure:5286: 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 5220 "configure"
+#line 5291 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5239,7 +5310,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5243: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5314: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5258,14 +5329,14 @@ if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
 #define $ac_tr_func 1
 EOF
  cat > conftest.$ac_ext <<EOF
-#line 5262 "configure"
+#line 5333 "configure"
 #include "confdefs.h"
 #include <sys/time.h>
 int main() {
 gettimeofday((struct timeval*)0,(struct timezone*)0);
 ; return 0; }
 EOF
-if { (eval echo configure:5269: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5340: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   :
 else
   echo "configure: failed program was:" >&5
@@ -5286,12 +5357,12 @@ done
 for ac_func in getaddrinfo
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5290: checking for $ac_func" >&5
+echo "configure:5361: 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 5295 "configure"
+#line 5366 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5314,7 +5385,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5318: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5389: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -5333,13 +5404,13 @@ if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
 #define $ac_tr_func 1
 EOF
  echo $ac_n "checking getaddrinfo bug""... $ac_c" 1>&6
-echo "configure:5337: checking getaddrinfo bug" >&5
+echo "configure:5408: checking getaddrinfo bug" >&5
 if test "$cross_compiling" = yes; then
   echo "$ac_t""buggy" 1>&6
 buggygetaddrinfo=yes
 else
   cat > conftest.$ac_ext <<EOF
-#line 5343 "configure"
+#line 5414 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -5428,7 +5499,7 @@ main()
 }
 
 EOF
-if { (eval echo configure:5432: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5503: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   echo "$ac_t""good" 1>&6
 buggygetaddrinfo=no
@@ -5459,12 +5530,12 @@ fi
 for ac_func in getnameinfo
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:5463: checking for $ac_func" >&5
+echo "configure:5534: 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 5468 "configure"
+#line 5539 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -5487,7 +5558,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5491: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5562: \"$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
@@ -5514,12 +5585,12 @@ done
 
 # checks for structures
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:5518: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:5589: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5523 "configure"
+#line 5594 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -5528,7 +5599,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:5532: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5603: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -5549,12 +5620,12 @@ EOF
 fi
 
 echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6
-echo "configure:5553: checking whether struct tm is in sys/time.h or time.h" >&5
+echo "configure:5624: checking whether struct tm is in sys/time.h or time.h" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5558 "configure"
+#line 5629 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
@@ -5562,7 +5633,7 @@ int main() {
 struct tm *tp; tp->tm_sec;
 ; return 0; }
 EOF
-if { (eval echo configure:5566: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5637: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm=time.h
 else
@@ -5583,12 +5654,12 @@ EOF
 fi
 
 echo $ac_n "checking for tm_zone in struct tm""... $ac_c" 1>&6
-echo "configure:5587: checking for tm_zone in struct tm" >&5
+echo "configure:5658: checking for tm_zone in struct tm" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm_zone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5592 "configure"
+#line 5663 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_cv_struct_tm>
@@ -5596,7 +5667,7 @@ int main() {
 struct tm tm; tm.tm_zone;
 ; return 0; }
 EOF
-if { (eval echo configure:5600: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5671: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm_zone=yes
 else
@@ -5616,12 +5687,12 @@ EOF
 
 else
   echo $ac_n "checking for tzname""... $ac_c" 1>&6
-echo "configure:5620: checking for tzname" >&5
+echo "configure:5691: checking for tzname" >&5
 if eval "test \"`echo '$''{'ac_cv_var_tzname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5625 "configure"
+#line 5696 "configure"
 #include "confdefs.h"
 #include <time.h>
 #ifndef tzname /* For SGI.  */
@@ -5631,7 +5702,7 @@ int main() {
 atoi(*tzname);
 ; return 0; }
 EOF
-if { (eval echo configure:5635: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5706: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_var_tzname=yes
 else
@@ -5654,19 +5725,19 @@ fi
 
 
 echo $ac_n "checking for time.h that defines altzone""... $ac_c" 1>&6
-echo "configure:5658: checking for time.h that defines altzone" >&5
+echo "configure:5729: checking for time.h that defines altzone" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time_altzone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5663 "configure"
+#line 5734 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() {
 return altzone;
 ; return 0; }
 EOF
-if { (eval echo configure:5670: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5741: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time_altzone=yes
 else
@@ -5688,9 +5759,9 @@ fi
 
 was_it_defined=no
 echo $ac_n "checking whether sys/select.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:5692: checking whether sys/select.h and sys/time.h may both be included" >&5
+echo "configure:5763: checking whether sys/select.h and sys/time.h may both be included" >&5
 cat > conftest.$ac_ext <<EOF
-#line 5694 "configure"
+#line 5765 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -5701,7 +5772,7 @@ int main() {
 ;
 ; return 0; }
 EOF
-if { (eval echo configure:5705: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5776: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define SYS_SELECT_WITH_SYS_TIME 1
@@ -5715,12 +5786,12 @@ rm -f conftest*
 echo "$ac_t""$was_it_defined" 1>&6
 
 echo $ac_n "checking for addrinfo""... $ac_c" 1>&6
-echo "configure:5719: checking for addrinfo" >&5
+echo "configure:5790: checking for addrinfo" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_addrinfo'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5724 "configure"
+#line 5795 "configure"
 #include "confdefs.h"
 
 #		include <netdb.h>
@@ -5728,7 +5799,7 @@ int main() {
 struct addrinfo a
 ; return 0; }
 EOF
-if { (eval echo configure:5732: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5803: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_addrinfo=yes
 else
@@ -5749,12 +5820,12 @@ EOF
 fi
 
 echo $ac_n "checking for sockaddr_storage""... $ac_c" 1>&6
-echo "configure:5753: checking for sockaddr_storage" >&5
+echo "configure:5824: checking for sockaddr_storage" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_sockaddr_storage'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5758 "configure"
+#line 5829 "configure"
 #include "confdefs.h"
 
 #		include <sys/types.h>
@@ -5763,7 +5834,7 @@ int main() {
 struct sockaddr_storage s
 ; return 0; }
 EOF
-if { (eval echo configure:5767: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5838: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_sockaddr_storage=yes
 else
@@ -5786,14 +5857,14 @@ fi
 # checks for compiler characteristics
 
 echo $ac_n "checking whether char is unsigned""... $ac_c" 1>&6
-echo "configure:5790: checking whether char is unsigned" >&5
+echo "configure:5861: checking whether char is unsigned" >&5
 if eval "test \"`echo '$''{'ac_cv_c_char_unsigned'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   if test "$GCC" = yes; then
   # GCC predefines this symbol on systems where it applies.
 cat > conftest.$ac_ext <<EOF
-#line 5797 "configure"
+#line 5868 "configure"
 #include "confdefs.h"
 #ifdef __CHAR_UNSIGNED__
   yes
@@ -5815,7 +5886,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 5819 "configure"
+#line 5890 "configure"
 #include "confdefs.h"
 /* volatile prevents gcc2 from optimizing the test away on sparcs.  */
 #if !defined(__STDC__) || __STDC__ != 1
@@ -5825,7 +5896,7 @@ main() {
   volatile char c = 255; exit(c < 0);
 }
 EOF
-if { (eval echo configure:5829: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5900: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_char_unsigned=yes
 else
@@ -5849,12 +5920,12 @@ EOF
 fi
 
 echo $ac_n "checking for working const""... $ac_c" 1>&6
-echo "configure:5853: checking for working const" >&5
+echo "configure:5924: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5858 "configure"
+#line 5929 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -5903,7 +5974,7 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:5907: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:5978: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -5926,16 +5997,16 @@ fi
 
 works=no
 echo $ac_n "checking for working volatile""... $ac_c" 1>&6
-echo "configure:5930: checking for working volatile" >&5
+echo "configure:6001: checking for working volatile" >&5
 cat > conftest.$ac_ext <<EOF
-#line 5932 "configure"
+#line 6003 "configure"
 #include "confdefs.h"
 
 int main() {
 volatile int x; x = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:5939: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6010: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   works=yes
 else
@@ -5952,16 +6023,16 @@ echo "$ac_t""$works" 1>&6
 
 works=no
 echo $ac_n "checking for working signed char""... $ac_c" 1>&6
-echo "configure:5956: checking for working signed char" >&5
+echo "configure:6027: checking for working signed char" >&5
 cat > conftest.$ac_ext <<EOF
-#line 5958 "configure"
+#line 6029 "configure"
 #include "confdefs.h"
 
 int main() {
 signed char c;
 ; return 0; }
 EOF
-if { (eval echo configure:5965: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6036: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   works=yes
 else
@@ -5978,16 +6049,16 @@ echo "$ac_t""$works" 1>&6
 
 have_prototypes=no
 echo $ac_n "checking for prototypes""... $ac_c" 1>&6
-echo "configure:5982: checking for prototypes" >&5
+echo "configure:6053: checking for prototypes" >&5
 cat > conftest.$ac_ext <<EOF
-#line 5984 "configure"
+#line 6055 "configure"
 #include "confdefs.h"
 int foo(int x) { return 0; }
 int main() {
 return foo(10);
 ; return 0; }
 EOF
-if { (eval echo configure:5991: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6062: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_PROTOTYPES 1
@@ -6002,9 +6073,9 @@ echo "$ac_t""$have_prototypes" 1>&6
 
 works=no
 echo $ac_n "checking for variable length prototypes and stdarg.h""... $ac_c" 1>&6
-echo "configure:6006: checking for variable length prototypes and stdarg.h" >&5
+echo "configure:6077: checking for variable length prototypes and stdarg.h" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6008 "configure"
+#line 6079 "configure"
 #include "confdefs.h"
 
 #include <stdarg.h>
@@ -6021,7 +6092,7 @@ int main() {
 return foo(10, "", 3.14);
 ; return 0; }
 EOF
-if { (eval echo configure:6025: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6096: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_STDARG_PROTOTYPES 1
@@ -6037,16 +6108,16 @@ echo "$ac_t""$works" 1>&6
 if test "$have_prototypes" = yes; then
 bad_prototypes=no
 echo $ac_n "checking for bad exec* prototypes""... $ac_c" 1>&6
-echo "configure:6041: checking for bad exec* prototypes" >&5
+echo "configure:6112: checking for bad exec* prototypes" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6043 "configure"
+#line 6114 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 int main() {
 char **t;execve("@",t,t);
 ; return 0; }
 EOF
-if { (eval echo configure:6050: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6121: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   :
 else
   echo "configure: failed program was:" >&5
@@ -6063,9 +6134,9 @@ fi
 
 # check if sockaddr has sa_len member
 echo $ac_n "checking if sockaddr has sa_len member""... $ac_c" 1>&6
-echo "configure:6067: checking if sockaddr has sa_len member" >&5
+echo "configure:6138: checking if sockaddr has sa_len member" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6069 "configure"
+#line 6140 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/socket.h>
@@ -6074,7 +6145,7 @@ struct sockaddr x;
 x.sa_len = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:6078: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6149: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   echo "$ac_t""yes" 1>&6
 	cat >> confdefs.h <<\EOF
@@ -6090,7 +6161,7 @@ fi
 rm -f conftest*
 
 echo $ac_n "checking for bad static forward""... $ac_c" 1>&6
-echo "configure:6094: checking for bad static forward" >&5
+echo "configure:6165: checking for bad static forward" >&5
 if eval "test \"`echo '$''{'ac_cv_bad_static_forward'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6098,7 +6169,7 @@ else
   ac_cv_bad_static_forward=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 6102 "configure"
+#line 6173 "configure"
 #include "confdefs.h"
 
 struct s { int a; int b; };
@@ -6113,7 +6184,7 @@ main() {
  exit(!((int)&foo == foobar()));
 }
 EOF
-if { (eval echo configure:6117: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6188: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_bad_static_forward=no
 else
@@ -6138,9 +6209,9 @@ fi
 
 va_list_is_array=no
 echo $ac_n "checking whether va_list is an array""... $ac_c" 1>&6
-echo "configure:6142: checking whether va_list is an array" >&5
+echo "configure:6213: checking whether va_list is an array" >&5
 cat > conftest.$ac_ext <<EOF
-#line 6144 "configure"
+#line 6215 "configure"
 #include "confdefs.h"
 
 #ifdef HAVE_STDARG_PROTOTYPES
@@ -6153,7 +6224,7 @@ int main() {
 va_list list1, list2; list1 = list2;
 ; return 0; }
 EOF
-if { (eval echo configure:6157: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6228: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   :
 else
   echo "configure: failed program was:" >&5
@@ -6169,12 +6240,12 @@ echo "$ac_t""$va_list_is_array" 1>&6
 
 # sigh -- gethostbyname_r is a mess; it can have 3, 5 or 6 arguments :-(
 echo $ac_n "checking for gethostbyname_r""... $ac_c" 1>&6
-echo "configure:6173: checking for gethostbyname_r" >&5
+echo "configure:6244: checking for gethostbyname_r" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname_r'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6178 "configure"
+#line 6249 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname_r(); below.  */
@@ -6197,7 +6268,7 @@ gethostbyname_r();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6201: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6272: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname_r=yes"
 else
@@ -6217,11 +6288,11 @@ if eval "test \"`echo '$ac_cv_func_'gethostbyname_r`\" = yes"; then
 EOF
 
   echo $ac_n "checking gethostbyname_r with 6 args""... $ac_c" 1>&6
-echo "configure:6221: checking gethostbyname_r with 6 args" >&5
+echo "configure:6292: checking gethostbyname_r with 6 args" >&5
   OLD_CFLAGS=$CFLAGS
   CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
   cat > conftest.$ac_ext <<EOF
-#line 6225 "configure"
+#line 6296 "configure"
 #include "confdefs.h"
 
 #   include <netdb.h>
@@ -6238,7 +6309,7 @@ int main() {
   
 ; return 0; }
 EOF
-if { (eval echo configure:6242: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6313: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
     cat >> confdefs.h <<\EOF
@@ -6258,9 +6329,9 @@ else
   
     echo "$ac_t""no" 1>&6
     echo $ac_n "checking gethostbyname_r with 5 args""... $ac_c" 1>&6
-echo "configure:6262: checking gethostbyname_r with 5 args" >&5
+echo "configure:6333: checking gethostbyname_r with 5 args" >&5
     cat > conftest.$ac_ext <<EOF
-#line 6264 "configure"
+#line 6335 "configure"
 #include "confdefs.h"
 
 #     include <netdb.h>
@@ -6277,7 +6348,7 @@ int main() {
     
 ; return 0; }
 EOF
-if { (eval echo configure:6281: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6352: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
       cat >> confdefs.h <<\EOF
@@ -6297,9 +6368,9 @@ else
   
       echo "$ac_t""no" 1>&6
       echo $ac_n "checking gethostbyname_r with 3 args""... $ac_c" 1>&6
-echo "configure:6301: checking gethostbyname_r with 3 args" >&5
+echo "configure:6372: checking gethostbyname_r with 3 args" >&5
       cat > conftest.$ac_ext <<EOF
-#line 6303 "configure"
+#line 6374 "configure"
 #include "confdefs.h"
 
 #       include <netdb.h>
@@ -6314,7 +6385,7 @@ int main() {
       
 ; return 0; }
 EOF
-if { (eval echo configure:6318: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6389: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   
         cat >> confdefs.h <<\EOF
@@ -6350,12 +6421,12 @@ else
   for ac_func in gethostbyname
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6354: checking for $ac_func" >&5
+echo "configure:6425: 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 6359 "configure"
+#line 6430 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6378,7 +6449,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6382: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6453: \"$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
@@ -6416,12 +6487,12 @@ fi
 
 # Linux requires this for correct f.p. operations
 echo $ac_n "checking for __fpu_control""... $ac_c" 1>&6
-echo "configure:6420: checking for __fpu_control" >&5
+echo "configure:6491: checking for __fpu_control" >&5
 if eval "test \"`echo '$''{'ac_cv_func___fpu_control'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6425 "configure"
+#line 6496 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char __fpu_control(); below.  */
@@ -6444,7 +6515,7 @@ __fpu_control();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6448: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6519: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func___fpu_control=yes"
 else
@@ -6462,7 +6533,7 @@ if eval "test \"`echo '$ac_cv_func_'__fpu_control`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for __fpu_control in -lieee""... $ac_c" 1>&6
-echo "configure:6466: checking for __fpu_control in -lieee" >&5
+echo "configure:6537: checking for __fpu_control in -lieee" >&5
 ac_lib_var=`echo ieee'_'__fpu_control | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6470,7 +6541,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lieee  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6474 "configure"
+#line 6545 "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
@@ -6481,7 +6552,7 @@ int main() {
 __fpu_control()
 ; return 0; }
 EOF
-if { (eval echo configure:6485: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6556: \"$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
@@ -6514,7 +6585,7 @@ fi
 
 # Check for --with-fpectl
 echo $ac_n "checking for --with-fpectl""... $ac_c" 1>&6
-echo "configure:6518: checking for --with-fpectl" >&5
+echo "configure:6589: checking for --with-fpectl" >&5
 # Check whether --with-fpectl or --without-fpectl was given.
 if test "${with_fpectl+set}" = set; then
   withval="$with_fpectl"
@@ -6539,7 +6610,7 @@ BeOS) ;;
 *) LIBM=-lm
 esac
 echo $ac_n "checking for --with-libm=STRING""... $ac_c" 1>&6
-echo "configure:6543: checking for --with-libm=STRING" >&5
+echo "configure:6614: checking for --with-libm=STRING" >&5
 # Check whether --with-libm or --without-libm was given.
 if test "${with_libm+set}" = set; then
   withval="$with_libm"
@@ -6560,7 +6631,7 @@ fi
 # check for --with-libc=...
 
 echo $ac_n "checking for --with-libc=STRING""... $ac_c" 1>&6
-echo "configure:6564: checking for --with-libc=STRING" >&5
+echo "configure:6635: checking for --with-libc=STRING" >&5
 # Check whether --with-libc or --without-libc was given.
 if test "${with_libc+set}" = set; then
   withval="$with_libc"
@@ -6584,12 +6655,12 @@ LIBS="$LIBS $LIBM"
 for ac_func in hypot
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:6588: checking for $ac_func" >&5
+echo "configure:6659: 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 6593 "configure"
+#line 6664 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -6612,7 +6683,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6616: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6687: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -6642,7 +6713,7 @@ LIBS=$LIBS_SAVE
 
 # check whether malloc(0) returns NULL or not
 echo $ac_n "checking what malloc(0) returns""... $ac_c" 1>&6
-echo "configure:6646: checking what malloc(0) returns" >&5
+echo "configure:6717: checking what malloc(0) returns" >&5
 if eval "test \"`echo '$''{'ac_cv_malloc_zero'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6650,7 +6721,7 @@ else
   ac_cv_malloc_zero=nonnull
 else
   cat > conftest.$ac_ext <<EOF
-#line 6654 "configure"
+#line 6725 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #ifdef HAVE_STDLIB
@@ -6669,7 +6740,7 @@ main() {
 	exit(0);
 }
 EOF
-if { (eval echo configure:6673: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6744: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_malloc_zero=nonnull
 else
@@ -6695,17 +6766,17 @@ fi
 # check for wchar.h
 ac_safe=`echo "wchar.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for wchar.h""... $ac_c" 1>&6
-echo "configure:6699: checking for wchar.h" >&5
+echo "configure:6770: checking for wchar.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6704 "configure"
+#line 6775 "configure"
 #include "confdefs.h"
 #include <wchar.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6709: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6780: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -6736,7 +6807,7 @@ fi
 if test "$wchar_h" = yes
 then
   echo $ac_n "checking size of wchar_t""... $ac_c" 1>&6
-echo "configure:6740: checking size of wchar_t" >&5
+echo "configure:6811: checking size of wchar_t" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_wchar_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6744,7 +6815,7 @@ else
   ac_cv_sizeof_wchar_t=4
 else
   cat > conftest.$ac_ext <<EOF
-#line 6748 "configure"
+#line 6819 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -6755,7 +6826,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:6759: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6830: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_wchar_t=`cat conftestval`
 else
@@ -6777,7 +6848,7 @@ EOF
 fi
 
 echo $ac_n "checking what type to use for unicode""... $ac_c" 1>&6
-echo "configure:6781: checking what type to use for unicode" >&5
+echo "configure:6852: checking what type to use for unicode" >&5
 # Check whether --enable-unicode or --disable-unicode was given.
 if test "${enable_unicode+set}" = set; then
   enableval="$enable_unicode"
@@ -6852,14 +6923,14 @@ fi
 
 # check for endianness
 echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
-echo "configure:6856: checking whether byte ordering is bigendian" >&5
+echo "configure:6927: checking whether byte ordering is bigendian" >&5
 if eval "test \"`echo '$''{'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 6863 "configure"
+#line 6934 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -6870,11 +6941,11 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:6874: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6945: \"$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 6878 "configure"
+#line 6949 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -6885,7 +6956,7 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:6889: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6960: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_bigendian=yes
 else
@@ -6905,7 +6976,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 6909 "configure"
+#line 6980 "configure"
 #include "confdefs.h"
 main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
@@ -6918,7 +6989,7 @@ main () {
   exit (u.c[sizeof (long) - 1] == 1);
 }
 EOF
-if { (eval echo configure:6922: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:6993: \"$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
@@ -6945,7 +7016,7 @@ fi
 # Check whether right shifting a negative integer extends the sign bit
 # or fills with zeros (like the Cray J90, according to Tim Peters).
 echo $ac_n "checking whether right shift extends the sign bit""... $ac_c" 1>&6
-echo "configure:6949: checking whether right shift extends the sign bit" >&5
+echo "configure:7020: checking whether right shift extends the sign bit" >&5
 if eval "test \"`echo '$''{'ac_cv_rshift_extends_sign'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6954,7 +7025,7 @@ if test "$cross_compiling" = yes; then
   ac_cv_rshift_extends_sign=yes
 else
   cat > conftest.$ac_ext <<EOF
-#line 6958 "configure"
+#line 7029 "configure"
 #include "confdefs.h"
 
 int main()
@@ -6963,7 +7034,7 @@ int main()
 }
 
 EOF
-if { (eval echo configure:6967: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7038: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_rshift_extends_sign=yes
 else
@@ -6988,13 +7059,13 @@ fi
 
 # check for getc_unlocked and related locking functions
 echo $ac_n "checking for getc_unlocked() and friends""... $ac_c" 1>&6
-echo "configure:6992: checking for getc_unlocked() and friends" >&5
+echo "configure:7063: checking for getc_unlocked() and friends" >&5
 if eval "test \"`echo '$''{'ac_cv_have_getc_unlocked'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
 cat > conftest.$ac_ext <<EOF
-#line 6998 "configure"
+#line 7069 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int main() {
@@ -7006,7 +7077,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:7010: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7081: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_have_getc_unlocked=yes
 else
@@ -7029,7 +7100,7 @@ fi
 
 # check for readline 4.0
 echo $ac_n "checking for rl_pre_input_hook in -lreadline""... $ac_c" 1>&6
-echo "configure:7033: checking for rl_pre_input_hook in -lreadline" >&5
+echo "configure:7104: checking for rl_pre_input_hook in -lreadline" >&5
 ac_lib_var=`echo readline'_'rl_pre_input_hook | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7037,7 +7108,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lreadline -ltermcap $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7041 "configure"
+#line 7112 "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
@@ -7048,7 +7119,7 @@ int main() {
 rl_pre_input_hook()
 ; return 0; }
 EOF
-if { (eval echo configure:7052: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7123: \"$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
@@ -7074,7 +7145,7 @@ fi
 
 # check for readline 4.2
 echo $ac_n "checking for rl_completion_matches in -lreadline""... $ac_c" 1>&6
-echo "configure:7078: checking for rl_completion_matches in -lreadline" >&5
+echo "configure:7149: checking for rl_completion_matches in -lreadline" >&5
 ac_lib_var=`echo readline'_'rl_completion_matches | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7082,7 +7153,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lreadline -ltermcap $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7086 "configure"
+#line 7157 "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
@@ -7093,7 +7164,7 @@ int main() {
 rl_completion_matches()
 ; return 0; }
 EOF
-if { (eval echo configure:7097: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7168: \"$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
@@ -7118,7 +7189,7 @@ fi
 
 
 echo $ac_n "checking for broken nice()""... $ac_c" 1>&6
-echo "configure:7122: checking for broken nice()" >&5
+echo "configure:7193: checking for broken nice()" >&5
 if eval "test \"`echo '$''{'ac_cv_broken_nice'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7127,7 +7198,7 @@ if test "$cross_compiling" = yes; then
   ac_cv_broken_nice=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 7131 "configure"
+#line 7202 "configure"
 #include "confdefs.h"
 
 int main()
@@ -7139,7 +7210,7 @@ int main()
 }
 
 EOF
-if { (eval echo configure:7143: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7214: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_broken_nice=yes
 else
@@ -7170,12 +7241,12 @@ cat >> confdefs.h <<\EOF
 #endif
 EOF
 echo $ac_n "checking for socklen_t""... $ac_c" 1>&6
-echo "configure:7174: checking for socklen_t" >&5
+echo "configure:7245: checking for socklen_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_socklen_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7179 "configure"
+#line 7250 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -7224,7 +7295,7 @@ done
 
 SRCDIRS="Parser Grammar Objects Python Modules"
 echo $ac_n "checking for build directories""... $ac_c" 1>&6
-echo "configure:7228: checking for build directories" >&5
+echo "configure:7299: checking for build directories" >&5
 for dir in $SRCDIRS; do
     if test ! -d $dir; then
         mkdir $dir
diff --git a/configure.in b/configure.in
index 8d77e7b43ab..9846dd2267f 100644
--- a/configure.in
+++ b/configure.in
@@ -152,9 +152,18 @@ AC_MSG_RESULT($with_cxx)
 
 dnl The following fragment works similar to AC_PROG_CXX.
 dnl It does not fail if CXX is not found, and it is not executed if 
-dnl --with-cxx was given.
+dnl --without-cxx was given.
 dnl Finally, it does not test whether CXX is g++.
 
+dnl Autoconf 2.5x does not have AC_PROG_CXX_WORKS anymore
+ifdef([AC_PROG_CXX_WORKS],[],
+      [AC_DEFUN([AC_PROG_CXX_WORKS],
+      [AC_LANG_PUSH(C++)dnl
+       _AC_COMPILER_EXEEXT
+       AC_LANG_POP()
+      ]
+)])
+
 if test "$check_cxx" = "yes" 
 then
 	AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++ cl, notfound)
@@ -405,6 +414,36 @@ else
   fi
 fi
 
+# On some compilers, pthreads are available without further options
+# (e.g. MacOS X). On some of these systems, the compiler will not
+# complain if unaccepted options are passed (e.g. gcc on Mac OS X).
+# So we have to see first whether pthreads are available without
+# options before we can check whether -Kpthread improves anything.
+AC_MSG_CHECKING(whether pthreads are available without options)
+AC_CACHE_VAL(ac_cv_pthread_is_default,
+[AC_TRY_RUN([
+#include <pthread.h>
+
+void* routine(void* p){return NULL;}
+
+int main(){
+  pthread_t p;
+  if(pthread_create(&p,NULL,routine,NULL)!=0)
+    return 1;
+  return 0;
+}
+],
+  ac_cv_pthread_is_default=yes,
+  ac_cv_pthread_is_default=no,
+  ac_cv_pthread_is_default=no)
+])
+AC_MSG_RESULT($ac_cv_pthread_is_default)
+
+
+if test $ac_cv_pthread_is_default = yes 
+then
+  ac_cv_kpthread=no
+else
 # -Kpthread, if available, provides the right #defines
 # and linker options to make pthread_create available
 # Some compilers won't report that they do not support -Kpthread,
@@ -431,6 +470,7 @@ int main(){
   ac_cv_kpthread=no)
 CC="$ac_save_cc"])
 AC_MSG_RESULT($ac_cv_kpthread)
+fi
 
 dnl # check for ANSI or K&R ("traditional") preprocessor
 dnl AC_MSG_CHECKING(for C preprocessor type)
@@ -925,6 +965,14 @@ AC_MSG_RESULT($with_threads)
 if test "$with_threads" = "no"
 then
     USE_THREAD_MODULE="#"
+elif test "$ac_cv_pthread_is_default" = yes
+then
+    AC_DEFINE(WITH_THREAD)
+    AC_DEFINE(_POSIX_THREADS)
+    # Defining _REENTRANT on system with POSIX threads should not hurt.
+    AC_DEFINE(_REENTRANT)
+    posix_threads=yes
+    LIBOBJS="$LIBOBJS thread.o"    
 elif test "$ac_cv_kpthread" = "yes"
 then
     CC="$CC -Kpthread"
@@ -1120,7 +1168,7 @@ if test "$ipv6" = "yes"; then
 		case $i in
 		inria)
 			dnl http://www.kame.net/
-			AC_EGREP_CPP(yes, [dnl
+			AC_EGREP_CPP(yes, [
 #include <netinet/in.h>
 #ifdef IPV6_INRIA_VERSION
 yes
@@ -1130,7 +1178,7 @@ yes
 			;;
 		kame)
 			dnl http://www.kame.net/
-			AC_EGREP_CPP(yes, [dnl
+			AC_EGREP_CPP(yes, [
 #include <netinet/in.h>
 #ifdef __KAME__
 yes
@@ -1143,7 +1191,7 @@ yes
 			;;
 		linux-glibc)
 			dnl http://www.v6.linux.or.jp/
-			AC_EGREP_CPP(yes, [dnl
+			AC_EGREP_CPP(yes, [
 #include <features.h>
 #if defined(__GLIBC__) && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2))
 yes
@@ -1171,7 +1219,7 @@ yes
                         fi
 			;;
 		toshiba)
-			AC_EGREP_CPP(yes, [dnl
+			AC_EGREP_CPP(yes, [
 #include <sys/param.h>
 #ifdef _TOSHIBA_INET6
 yes
@@ -1182,7 +1230,7 @@ yes
 				OPT="-DINET6 $OPT"])
 			;;
 		v6d)
-			AC_EGREP_CPP(yes, [dnl
+			AC_EGREP_CPP(yes, [
 #include </usr/local/v6/include/sys/v6config.h>
 #ifdef __V6D__
 yes
@@ -1193,7 +1241,7 @@ yes
 				OPT="-I/usr/local/v6/include $OPT"])
 			;;
 		zeta)
-			AC_EGREP_CPP(yes, [dnl
+			AC_EGREP_CPP(yes, [
 #include <sys/param.h>
 #ifdef _ZETA_MINAMI_INET6
 yes