diff --git a/configure b/configure
index 30aeb3fd872..d6544a9298e 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 1.462 .
+# From configure.in Revision: 1.464 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.57 for python 2.4.
 #
@@ -1347,6 +1347,14 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
+# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
+# u_int on Irix 5.3. Defining _BSD_TYPES brings it back.
+
+cat >>confdefs.h <<\_ACEOF
+#define _BSD_TYPES 1
+_ACEOF
+
+
 define_xopen_source=yes
 
 # Arguments passed to configure.
@@ -12351,8 +12359,9 @@ echo "${ECHO_T}MACHDEP_OBJS" >&6
 
 
 
-for ac_func in alarm chown clock confstr ctermid execv \
- fork fpathconf ftime ftruncate \
+
+for ac_func in alarm bind_textdomain_codeset chown clock confstr ctermid \
+ execv fork fpathconf ftime ftruncate \
  gai_strerror getgroups getlogin getloadavg getpeername getpgid getpid \
  getpriority getpwent getsid getwd \
  kill killpg lchown lstat mkfifo mknod mktime \
@@ -15592,6 +15601,57 @@ rm -f conftest.$ac_objext conftest.$ac_ext
 echo "$as_me:$LINENO: result: $works" >&5
 echo "${ECHO_T}$works" >&6
 
+# check for socketpair
+echo "$as_me:$LINENO: checking for socketpair" >&5
+echo $ECHO_N "checking for socketpair... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+int
+main ()
+{
+void *x=socketpair
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_SOCKETPAIR 1
+_ACEOF
+
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+
 # check if sockaddr has sa_len member
 echo "$as_me:$LINENO: checking if sockaddr has sa_len member" >&5
 echo $ECHO_N "checking if sockaddr has sa_len member... $ECHO_C" >&6
diff --git a/configure.in b/configure.in
index fbd436bb5b9..6f99ae9fd02 100644
--- a/configure.in
+++ b/configure.in
@@ -50,6 +50,10 @@ AC_DEFINE(_NETBSD_SOURCE, 1, [Define on NetBSD to activate all library features]
 # them.
 AC_DEFINE(__BSD_VISIBLE, 1, [Define on FreeBSD to activate all library features])
 
+# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
+# u_int on Irix 5.3. Defining _BSD_TYPES brings it back.
+AC_DEFINE(_BSD_TYPES, 1, [Define on Irix to enable u_int])
+
 define_xopen_source=yes
 
 # Arguments passed to configure.
diff --git a/pyconfig.h.in b/pyconfig.h.in
index 19227e0e0db..7c45736f483 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -428,15 +428,15 @@
 /* Define to 1 if you have the `snprintf' function. */
 #undef HAVE_SNPRINTF
 
-/* Define to 1 if you have the `socketpair' function. */
-#undef HAVE_SOCKETPAIR
-
 /* Define if sockaddr has sa_len member */
 #undef HAVE_SOCKADDR_SA_LEN
 
 /* struct sockaddr_storage (sys/socket.h) */
 #undef HAVE_SOCKADDR_STORAGE
 
+/* Define if you have the 'socketpair' function. */
+#undef HAVE_SOCKETPAIR
+
 /* Define to 1 if you have the `statvfs' function. */
 #undef HAVE_STATVFS
 
@@ -806,6 +806,9 @@
 # undef _ALL_SOURCE
 #endif
 
+/* Define on Irix to enable u_int */
+#undef _BSD_TYPES
+
 /* This must be set to 64 on some systems to enable large file support. */
 #undef _FILE_OFFSET_BITS