diff --git a/configure b/configure
index 53452e2..1b3fad0 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# From configure.in Revision: 1.25 
+# From configure.in Revision: 1.26 
 
 # Guess values for system-dependent variables and create Makefiles.
 # Generated automatically using autoconf version 2.10 
@@ -16,7 +16,7 @@
 ac_help="$ac_help
 --without-gcc             never use gcc"
 ac_help="$ac_help
---with-readline=DIRECTORY GNU readline"
+--with-readline[=DIRECTORY] use GNU readline library"
 ac_help="$ac_help
 --with-thread[=DIRECTORY] make interpreter thread-safe"
 ac_help="$ac_help
@@ -1017,7 +1017,10 @@
 
 fi
 
-for ac_hdr in dlfcn.h fcntl.h limits.h ncurses.h signal.h stdarg.h stddef.h stdlib.h thread.h unistd.h utime.h sys/audioio.h sys/param.h sys/select.h sys/time.h sys/times.h sys/un.h sys/utsname.h sys/wait.h
+for ac_hdr in dlfcn.h fcntl.h limits.h ncurses.h \
+signal.h stdarg.h stddef.h stdlib.h thread.h unistd.h utime.h \
+sys/audioio.h sys/param.h sys/select.h sys/time.h sys/times.h \
+sys/un.h sys/utsname.h sys/wait.h
 do
 ac_safe=`echo "$ac_hdr" | tr './\055' '___'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
@@ -1025,12 +1028,12 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1029 "configure"
+#line 1032 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1034: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1037: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1063,7 +1066,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1067 "configure"
+#line 1070 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_hdr>
@@ -1072,7 +1075,7 @@
 DIR *dirp = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:1076: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1079: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_header_dirent_$ac_safe=yes"
 else
@@ -1103,7 +1106,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-ldir  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1107 "configure"
+#line 1110 "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
@@ -1115,7 +1118,7 @@
 opendir()
 ; return 0; }
 EOF
-if { (eval echo configure:1119: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1122: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1142,7 +1145,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-lx  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1146 "configure"
+#line 1149 "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
@@ -1154,7 +1157,7 @@
 opendir()
 ; return 0; }
 EOF
-if { (eval echo configure:1158: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1161: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1179,7 +1182,7 @@
 was_it_defined=no
 echo $ac_n "checking for clock_t in time.h""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 1183 "configure"
+#line 1186 "configure"
 #include "confdefs.h"
 #include <time.h>
 EOF
@@ -1203,7 +1206,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1207 "configure"
+#line 1210 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1234,7 +1237,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1238 "configure"
+#line 1241 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1265,7 +1268,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1269 "configure"
+#line 1272 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1296,7 +1299,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1300 "configure"
+#line 1303 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
@@ -1314,7 +1317,7 @@
 int i;
 ; return 0; }
 EOF
-if { (eval echo configure:1318: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1321: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_type_signal=void
 else
@@ -1336,7 +1339,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1340 "configure"
+#line 1343 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1367,7 +1370,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1371 "configure"
+#line 1374 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 EOF
@@ -1486,7 +1489,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-ldl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1490 "configure"
+#line 1493 "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
@@ -1498,7 +1501,7 @@
 dlopen()
 ; return 0; }
 EOF
-if { (eval echo configure:1502: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1505: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1530,7 +1533,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-ldld  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1534 "configure"
+#line 1537 "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
@@ -1542,7 +1545,7 @@
 shl_load()
 ; return 0; }
 EOF
-if { (eval echo configure:1546: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1549: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1574,7 +1577,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-lsun  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1578 "configure"
+#line 1581 "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
@@ -1586,7 +1589,7 @@
 getpwnam()
 ; return 0; }
 EOF
-if { (eval echo configure:1590: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1593: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1626,7 +1629,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1630 "configure"
+#line 1633 "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
@@ -1638,7 +1641,7 @@
 t_open()
 ; return 0; }
 EOF
-if { (eval echo configure:1642: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1645: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1664,7 +1667,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-linet -lnsl $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1668 "configure"
+#line 1671 "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
@@ -1676,7 +1679,7 @@
 gethostbyname()
 ; return 0; }
 EOF
-if { (eval echo configure:1680: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1683: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1702,7 +1705,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket $LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1706 "configure"
+#line 1709 "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
@@ -1714,7 +1717,7 @@
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:1718: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1721: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1746,8 +1749,8 @@
 #define WITH_READLINE 1
 EOF
 
-if test ! -d "$withval"
-then { echo "configure: error: proper usage is --with-readline=DIRECTORY" 1>&2; exit 1; }
+if test -d "$withval"
+then LIBS="$LIBS -L$withval"
 fi
 termcap=
 echo $ac_n "checking for -ltermcap""... $ac_c" 1>&6
@@ -1758,7 +1761,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-ltermcap  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1762 "configure"
+#line 1765 "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
@@ -1770,7 +1773,7 @@
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:1774: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1777: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1795,7 +1798,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-ltermlib  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1799 "configure"
+#line 1802 "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
@@ -1807,7 +1810,7 @@
 tgetent()
 ; return 0; }
 EOF
-if { (eval echo configure:1811: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1814: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1823,20 +1826,59 @@
   termcap=termlib
 else
   echo "$ac_t""no" 1>&6
+
+{ echo "configure: error: no working termcap/termlib -- do not use --with-readline" 1>&2; exit 1; }
 fi
 
 fi
 
-if test ! -z "$termcap"
-then LIBS="$LIBS $withval/libreadline.a"
-     # Avoid possible conflict between shared libraries termcap and gl
-     # on IRIX 5: both contain a routine called clear.
-     if test -f /usr/lib/lib$termcap.a
-     then LIBS="$LIBS /usr/lib/lib$termcap.a"
-     else LIBS="$LIBS -l$termcap"
-     fi
-else { echo "configure: error: no working termcap/termlib" 1>&2; exit 1; }
+echo $ac_n "checking for -lreadline""... $ac_c" 1>&6
+ac_lib_var=`echo readline'_'readline | tr './+\055' '__p_'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-lreadline -l$termcap $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 1844 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char readline();
+
+int main() { return 0; }
+int t() {
+readline()
+; return 0; }
+EOF
+if { (eval echo configure:1856: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
 fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  
+LIBS="$LIBS -lreadline"
+# Avoid possible conflict between shared libraries termcap and gl
+# on IRIX 5: both contain a routine called clear.
+if test -f /usr/lib/lib$termcap.a
+then LIBS="$LIBS /usr/lib/lib$termcap.a"
+else LIBS="$LIBS -l$termcap"
+fi
+
+else
+  echo "$ac_t""no" 1>&6
+{ echo "configure: error: no working GNU readline -- do not use --with-readline" 1>&2; exit 1; }
+fi
+
 else
   echo "$ac_t""no" 1>&6
 fi
@@ -1859,7 +1901,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-lpthreads  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1863 "configure"
+#line 1905 "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
@@ -1871,7 +1913,7 @@
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:1875: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1917: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1896,6 +1938,55 @@
 LIBOBJS="$LIBOBJS thread.o"
 else
   echo "$ac_t""no" 1>&6
+
+echo $ac_n "checking for -lpthread""... $ac_c" 1>&6
+ac_lib_var=`echo pthread'_'pthread_create | tr './+\055' '__p_'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-lpthread  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 1951 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char pthread_create();
+
+int main() { return 0; }
+int t() {
+pthread_create()
+; return 0; }
+EOF
+if { (eval echo configure:1963: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  cat >> confdefs.h <<\EOF
+#define WITH_THREAD 1
+EOF
+
+cat >> confdefs.h <<\EOF
+#define _POSIX_THREADS 1
+EOF
+
+LIBS="$LIBS -lpthread"
+LIBOBJS="$LIBOBJS thread.o"
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+
 fi
 
 echo $ac_n "checking for -lmpc""... $ac_c" 1>&6
@@ -1906,7 +1997,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-lmpc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1910 "configure"
+#line 2001 "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
@@ -1918,7 +2009,7 @@
 usconfig()
 ; return 0; }
 EOF
-if { (eval echo configure:1922: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:2013: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1949,7 +2040,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-lthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1953 "configure"
+#line 2044 "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
@@ -1961,7 +2052,7 @@
 thr_create()
 ; return 0; }
 EOF
-if { (eval echo configure:1965: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:2056: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2040,7 +2131,7 @@
 
 
 # checks for library functions
-for ac_func in chown clock dlopen ftime ftruncate \
+for ac_func in chown clock dlopen flock ftime ftruncate \
  gethostname_r getpeername getpgrp getpid gettimeofday getwd \
  link lstat mkfifo nice readlink \
  select setgid setuid setsid setpgid setpgrp setvbuf \
@@ -2052,7 +2143,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2056 "configure"
+#line 2147 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2076,7 +2167,7 @@
 
 ; return 0; }
 EOF
-if { (eval echo configure:2080: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:2171: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2105,7 +2196,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2109 "configure"
+#line 2200 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2129,7 +2220,7 @@
 
 ; return 0; }
 EOF
-if { (eval echo configure:2133: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:2224: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2154,7 +2245,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2158 "configure"
+#line 2249 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char getpgrp(); below.  */
@@ -2178,7 +2269,7 @@
 
 ; return 0; }
 EOF
-if { (eval echo configure:2182: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:2273: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_func_getpgrp=yes"
 else
@@ -2191,7 +2282,7 @@
 if eval "test \"`echo '$ac_cv_func_'getpgrp`\" = yes"; then
   echo "$ac_t""yes" 1>&6
   cat > conftest.$ac_ext <<EOF
-#line 2195 "configure"
+#line 2286 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 int main() { return 0; }
@@ -2199,7 +2290,7 @@
 getpgrp(0);
 ; return 0; }
 EOF
-if { (eval echo configure:2203: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2294: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define GETPGRP_HAVE_ARG 1
@@ -2217,7 +2308,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2221 "configure"
+#line 2312 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char setpgrp(); below.  */
@@ -2241,7 +2332,7 @@
 
 ; return 0; }
 EOF
-if { (eval echo configure:2245: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:2336: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_func_setpgrp=yes"
 else
@@ -2254,7 +2345,7 @@
 if eval "test \"`echo '$ac_cv_func_'setpgrp`\" = yes"; then
   echo "$ac_t""yes" 1>&6
   cat > conftest.$ac_ext <<EOF
-#line 2258 "configure"
+#line 2349 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 int main() { return 0; }
@@ -2262,7 +2353,7 @@
 setpgrp(0,0);
 ; return 0; }
 EOF
-if { (eval echo configure:2266: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2357: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define SETPGRP_HAVE_ARG 1
@@ -2280,7 +2371,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2284 "configure"
+#line 2375 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gettimeofday(); below.  */
@@ -2304,7 +2395,7 @@
 
 ; return 0; }
 EOF
-if { (eval echo configure:2308: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:2399: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_func_gettimeofday=yes"
 else
@@ -2317,7 +2408,7 @@
 if eval "test \"`echo '$ac_cv_func_'gettimeofday`\" = yes"; then
   echo "$ac_t""yes" 1>&6
   cat > conftest.$ac_ext <<EOF
-#line 2321 "configure"
+#line 2412 "configure"
 #include "confdefs.h"
 #include <sys/time.h>
 int main() { return 0; }
@@ -2325,7 +2416,7 @@
 gettimeofday((struct timeval*)0,(struct timezone*)0);
 ; return 0; }
 EOF
-if { (eval echo configure:2329: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2420: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   :
 else
   rm -rf conftest*
@@ -2347,7 +2438,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2351 "configure"
+#line 2442 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -2357,7 +2448,7 @@
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:2361: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2452: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -2381,7 +2472,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2385 "configure"
+#line 2476 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
@@ -2390,7 +2481,7 @@
 struct tm *tp; tp->tm_sec;
 ; return 0; }
 EOF
-if { (eval echo configure:2394: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2485: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm=time.h
 else
@@ -2414,7 +2505,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2418 "configure"
+#line 2509 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_cv_struct_tm>
@@ -2423,7 +2514,7 @@
 struct tm tm; tm.tm_zone;
 ; return 0; }
 EOF
-if { (eval echo configure:2427: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2518: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm_zone=yes
 else
@@ -2446,7 +2537,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2450 "configure"
+#line 2541 "configure"
 #include "confdefs.h"
 #include <time.h>
 #ifndef tzname /* For SGI.  */
@@ -2457,7 +2548,7 @@
 atoi(*tzname);
 ; return 0; }
 EOF
-if { (eval echo configure:2461: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:2552: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   ac_cv_var_tzname=yes
 else
@@ -2483,7 +2574,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2487 "configure"
+#line 2578 "configure"
 #include "confdefs.h"
 #include <time.h>
 int main() { return 0; }
@@ -2491,7 +2582,7 @@
 return altzone;
 ; return 0; }
 EOF
-if { (eval echo configure:2495: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2586: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time_altzone=yes
 else
@@ -2513,7 +2604,7 @@
 was_it_defined=no
 echo $ac_n "checking whether sys/select.h and sys/time.h may both be included""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 2517 "configure"
+#line 2608 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2525,7 +2616,7 @@
 ;
 ; return 0; }
 EOF
-if { (eval echo configure:2529: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2620: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define SYS_SELECT_WITH_SYS_TIME 1
@@ -2545,7 +2636,7 @@
   if test "$GCC" = yes; then
   # GCC predefines this symbol on systems where it applies.
 cat > conftest.$ac_ext <<EOF
-#line 2549 "configure"
+#line 2640 "configure"
 #include "confdefs.h"
 #ifdef __CHAR_UNSIGNED__
   yes
@@ -2567,7 +2658,7 @@
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
 cat > conftest.$ac_ext <<EOF
-#line 2571 "configure"
+#line 2662 "configure"
 #include "confdefs.h"
 /* volatile prevents gcc2 from optimizing the test away on sparcs.  */
 #if !defined(__STDC__) || __STDC__ != 1
@@ -2577,7 +2668,7 @@
   volatile char c = 255; exit(c < 0);
 }
 EOF
-{ (eval echo configure:2581: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+{ (eval echo configure:2672: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
 if test -s conftest && (./conftest; exit) 2>/dev/null; then
   ac_cv_c_char_unsigned=yes
 else
@@ -2602,7 +2693,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2606 "configure"
+#line 2697 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2652,7 +2743,7 @@
 
 ; return 0; }
 EOF
-if { (eval echo configure:2656: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2747: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -2675,7 +2766,7 @@
 works=no
 echo $ac_n "checking for working volatile""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 2679 "configure"
+#line 2770 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2683,7 +2774,7 @@
 volatile int x; x = 0;
 ; return 0; }
 EOF
-if { (eval echo configure:2687: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2778: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   works=yes
 else
@@ -2700,7 +2791,7 @@
 works=no
 echo $ac_n "checking for working signed char""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 2704 "configure"
+#line 2795 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2708,7 +2799,7 @@
 signed char c;
 ; return 0; }
 EOF
-if { (eval echo configure:2712: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2803: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   works=yes
 else
@@ -2725,7 +2816,7 @@
 have_prototypes=no
 echo $ac_n "checking for prototypes""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 2729 "configure"
+#line 2820 "configure"
 #include "confdefs.h"
 int foo(int x) { return 0; }
 int main() { return 0; }
@@ -2733,7 +2824,7 @@
 return foo(10);
 ; return 0; }
 EOF
-if { (eval echo configure:2737: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2828: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_PROTOTYPES 1
@@ -2747,7 +2838,7 @@
 works=no
 echo $ac_n "checking for variable length prototypes and stdarg.h""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 2751 "configure"
+#line 2842 "configure"
 #include "confdefs.h"
 
 #include <stdarg.h>
@@ -2758,7 +2849,7 @@
 return foo(10, 11, 12);
 ; return 0; }
 EOF
-if { (eval echo configure:2762: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2853: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define HAVE_STDARG_PROTOTYPES 1
@@ -2773,7 +2864,7 @@
 bad_prototypes=no
 echo $ac_n "checking for bad exec* prototypes""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 2777 "configure"
+#line 2868 "configure"
 #include "confdefs.h"
 #include <unistd.h>
 int main() { return 0; }
@@ -2781,7 +2872,7 @@
 char **t;execve("@",t,t);
 ; return 0; }
 EOF
-if { (eval echo configure:2785: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2876: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   :
 else
   rm -rf conftest*
@@ -2801,7 +2892,7 @@
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
 cat > conftest.$ac_ext <<EOF
-#line 2805 "configure"
+#line 2896 "configure"
 #include "confdefs.h"
 
 struct s { int a; int b; };
@@ -2817,7 +2908,7 @@
 }
 
 EOF
-{ (eval echo configure:2821: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+{ (eval echo configure:2912: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
 if test -s conftest && (./conftest; exit) 2>/dev/null; then
   :
 else
@@ -2833,7 +2924,7 @@
 va_list_is_array=no
 echo $ac_n "checking whether va_list is an array""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 2837 "configure"
+#line 2928 "configure"
 #include "confdefs.h"
 
 #ifdef HAVE_STDARG_PROTOTYPES
@@ -2847,7 +2938,7 @@
 va_list list1, list2; list1 = list2;
 ; return 0; }
 EOF
-if { (eval echo configure:2851: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2942: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   :
 else
   rm -rf conftest*
@@ -2872,7 +2963,7 @@
   ac_save_LIBS="$LIBS"
 LIBS="-lieee  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2876 "configure"
+#line 2967 "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
@@ -2884,7 +2975,7 @@
 __fpu_control()
 ; return 0; }
 EOF
-if { (eval echo configure:2888: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:2979: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2946,7 +3037,7 @@
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2950 "configure"
+#line 3041 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2970,7 +3061,7 @@
 
 ; return 0; }
 EOF
-if { (eval echo configure:2974: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:3065: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3003,7 +3094,7 @@
   ac_cv_func_getopt=no
 else
 cat > conftest.$ac_ext <<EOF
-#line 3007 "configure"
+#line 3098 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 extern int optind, opterr, getopt();
@@ -3015,7 +3106,7 @@
 	exit(0);
 }
 EOF
-{ (eval echo configure:3019: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+{ (eval echo configure:3110: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
 if test -s conftest && (./conftest; exit) 2>/dev/null; then
   ac_cv_func_getopt=yes
 else