diff -ruN Python-2.4.2.orig/Include/Python.h Python-2.4.2/Include/Python.h
--- Python-2.4.2.orig/Include/Python.h	2004-07-27 17:57:23 +0200
+++ Python-2.4.2/Include/Python.h	2006-01-01 17:50:35 +0100
@@ -2,6 +2,9 @@
 #define Py_PYTHON_H
 /* Since this is a "meta-include" file, no #ifdef __cplusplus / extern "C" { */
 
+/* Required on Gentoo/OpenBSD */
+#include <sys/types.h>
+
 /* Include nearly all Python header files */
 
 #include "patchlevel.h"
diff -ruN Python-2.4.2.orig/configure.in Python-2.4.2/configure.in
--- Python-2.4.2.orig/configure.in	2005-08-07 23:08:53 +0200
+++ Python-2.4.2/configure.in	2006-01-01 17:53:27 +0100
@@ -140,7 +140,7 @@
   # On OpenBSD, select(2) is not available if _XOPEN_SOURCE is defined,
   # even though select is a POSIX function. Reported by J. Ribbens.
   # Reconfirmed for OpenBSD 3.3 by Zachary Hamm, for 3.4 by Jason Ish.
-  OpenBSD/2.* | OpenBSD/3.@<:@0123456@:>@) 
+  OpenBSD/2.* | OpenBSD/3.@<:@012345678@:>@) 
     define_xopen_source=no;;
   # On Solaris 2.6, sys/wait.h is inconsistent in the usage
   # of union __?sigval. Reported by Stuart Bishop.
@@ -1517,9 +1517,16 @@
 
 # only check for sem_ini if thread support is requested
 if test "$with_threads" = "yes" -o -z "$with_threads"; then
+  case "$ac_sys_system" in
+  OpenBSD*)
+    LIBS="-pthread ${LIBS}"
+    ;;
+  *)
     AC_SEARCH_LIBS(sem_init, pthread rt posix4) # 'Real Time' functions on Solaris
 						# posix4 on Solaris 2.6
 						# pthread (first!) on Linux
+    ;;
+  esac
 fi
 
 # check if we need libintl for locale functions