diff --git a/configure b/configure
index cb6bf15..8774922 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 60552 .
+# From configure.in Revision: 60787 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for python 3.0.
 #
@@ -13581,138 +13581,6 @@
 
 
 # Check for use of the system libffi library
-if test "${ac_cv_header_ffi_h+set}" = set; then
-  { echo "$as_me:$LINENO: checking for ffi.h" >&5
-echo $ECHO_N "checking for ffi.h... $ECHO_C" >&6; }
-if test "${ac_cv_header_ffi_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_header_ffi_h" >&5
-echo "${ECHO_T}$ac_cv_header_ffi_h" >&6; }
-else
-  # Is the header compilable?
-{ echo "$as_me:$LINENO: checking ffi.h usability" >&5
-echo $ECHO_N "checking ffi.h usability... $ECHO_C" >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-#include <ffi.h>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_header_compiler=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_header_compiler=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6; }
-
-# Is the header present?
-{ echo "$as_me:$LINENO: checking ffi.h presence" >&5
-echo $ECHO_N "checking ffi.h presence... $ECHO_C" >&6; }
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <ffi.h>
-_ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  ac_header_preproc=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-  ac_header_preproc=no
-fi
-
-rm -f conftest.err conftest.$ac_ext
-{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6; }
-
-# So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
-  yes:no: )
-    { echo "$as_me:$LINENO: WARNING: ffi.h: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: ffi.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
-    { echo "$as_me:$LINENO: WARNING: ffi.h: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: ffi.h: proceeding with the compiler's result" >&2;}
-    ac_header_preproc=yes
-    ;;
-  no:yes:* )
-    { echo "$as_me:$LINENO: WARNING: ffi.h: present but cannot be compiled" >&5
-echo "$as_me: WARNING: ffi.h: present but cannot be compiled" >&2;}
-    { echo "$as_me:$LINENO: WARNING: ffi.h:     check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: ffi.h:     check for missing prerequisite headers?" >&2;}
-    { echo "$as_me:$LINENO: WARNING: ffi.h: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: ffi.h: see the Autoconf documentation" >&2;}
-    { echo "$as_me:$LINENO: WARNING: ffi.h:     section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: ffi.h:     section \"Present But Cannot Be Compiled\"" >&2;}
-    { echo "$as_me:$LINENO: WARNING: ffi.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: ffi.h: proceeding with the preprocessor's result" >&2;}
-    { echo "$as_me:$LINENO: WARNING: ffi.h: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: ffi.h: in the future, the compiler will take precedence" >&2;}
-    ( cat <<\_ASBOX
-## ------------------------------------------------ ##
-## Report this to http://www.python.org/python-bugs ##
-## ------------------------------------------------ ##
-_ASBOX
-     ) | sed "s/^/$as_me: WARNING:     /" >&2
-    ;;
-esac
-{ echo "$as_me:$LINENO: checking for ffi.h" >&5
-echo $ECHO_N "checking for ffi.h... $ECHO_C" >&6; }
-if test "${ac_cv_header_ffi_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_cv_header_ffi_h=$ac_header_preproc
-fi
-{ echo "$as_me:$LINENO: result: $ac_cv_header_ffi_h" >&5
-echo "${ECHO_T}$ac_cv_header_ffi_h" >&6; }
-
-fi
-
-
 { echo "$as_me:$LINENO: checking for --with-system-ffi" >&5
 echo $ECHO_N "checking for --with-system-ffi... $ECHO_C" >&6; }
 
@@ -13722,15 +13590,6 @@
 fi
 
 
-if test -z "$with_system_ffi" && test "$ac_cv_header_ffi_h" = yes; then
-	case "$ac_sys_system/`uname -m`" in
-	Linux/alpha*)  with_system_ffi="yes"; CONFIG_ARGS="$CONFIG_ARGS --with-system-ffi";;
-	Linux/arm*)  with_system_ffi="yes"; CONFIG_ARGS="$CONFIG_ARGS --with-system-ffi";;
-	Linux/ppc*)  with_system_ffi="yes"; CONFIG_ARGS="$CONFIG_ARGS --with-system-ffi";;
-	Linux/s390*)  with_system_ffi="yes"; CONFIG_ARGS="$CONFIG_ARGS --with-system-ffi";;
-	*) with_system_ffi="no"
-	esac
-fi
 { echo "$as_me:$LINENO: result: $with_system_ffi" >&5
 echo "${ECHO_T}$with_system_ffi" >&6; }