diff --git a/configure b/configure
index 0589db7..33eacde 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 1.443 .
+# From configure.in Revision: 1.444 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.57 for python 2.4.
 #
@@ -11164,73 +11164,6 @@
     THREADOBJ="Python/thread.o"
 else
 
-    echo "$as_me:$LINENO: checking for __d6_pthread_create in -lthread" >&5
-echo $ECHO_N "checking for __d6_pthread_create in -lthread... $ECHO_C" >&6
-if test "${ac_cv_lib_thread___d6_pthread_create+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lthread  $LIBS"
-cat >conftest.$ac_ext <<_ACEOF
-#line $LINENO "configure"
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-/* Override any gcc2 internal prototype to avoid an error.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-/* We use char because int might match the return type of a gcc2
-   builtin and then its argument prototype would still apply.  */
-char __d6_pthread_create ();
-int
-main ()
-{
-__d6_pthread_create ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-         { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_cv_lib_thread___d6_pthread_create=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_cv_lib_thread___d6_pthread_create=no
-fi
-rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-echo "$as_me:$LINENO: result: $ac_cv_lib_thread___d6_pthread_create" >&5
-echo "${ECHO_T}$ac_cv_lib_thread___d6_pthread_create" >&6
-if test $ac_cv_lib_thread___d6_pthread_create = yes; then
-  cat >>confdefs.h <<\_ACEOF
-#define WITH_THREAD 1
-_ACEOF
-
-    echo Systems with __d6_pthread_create are not supported anymore.
-    echo See README
-    exit 1
-    posix_threads=yes
-    LIBS="$LIBS -lthread"
-    THREADOBJ="Python/thread.o"
-else
-
     echo "$as_me:$LINENO: checking for __pthread_create_system in -lpthread" >&5
 echo $ECHO_N "checking for __pthread_create_system in -lpthread... $ECHO_C" >&6
 if test "${ac_cv_lib_pthread___pthread_create_system+set}" = set; then
@@ -11371,8 +11304,6 @@
 
 fi
 
-fi
-
 
 fi
 
diff --git a/configure.in b/configure.in
index 602b864..412befb 100644
--- a/configure.in
+++ b/configure.in
@@ -1642,13 +1642,6 @@
     posix_threads=yes
     LIBS="$LIBS -lc_r"
     THREADOBJ="Python/thread.o"], [
-    AC_CHECK_LIB(thread, __d6_pthread_create, [AC_DEFINE(WITH_THREAD)
-    echo Systems with __d6_pthread_create are not supported anymore.
-    echo See README
-    exit 1
-    posix_threads=yes
-    LIBS="$LIBS -lthread"
-    THREADOBJ="Python/thread.o"], [
     AC_CHECK_LIB(pthread, __pthread_create_system, [AC_DEFINE(WITH_THREAD)
     posix_threads=yes
     LIBS="$LIBS -lpthread"
@@ -1658,7 +1651,7 @@
     LIBS="$LIBS -lcma"
     THREADOBJ="Python/thread.o"],[
     USE_THREAD_MODULE="#"])
-    ])])])])])])])])])])])
+    ])])])])])])])])])])
 
     AC_CHECK_LIB(mpc, usconfig, [AC_DEFINE(WITH_THREAD)
     LIBS="$LIBS -lmpc"