Only in misc/build/Python-2.7.3/Lib: plat-freebsd9
diff -ru misc/Python-2.7.3/Lib/test/test_threading.py misc/build/Python-2.7.3/Lib/test/test_threading.py
--- misc/Python-2.7.3/Lib/test/test_threading.py	2012-04-09 18:07:32.000000000 -0500
+++ misc/build/Python-2.7.3/Lib/test/test_threading.py	2012-07-24 22:39:03.000000000 -0500
@@ -421,7 +421,7 @@
     # #12316 and #11870), and fork() from a worker thread is known to trigger
     # problems with some operating systems (issue #3863): skip problematic tests
     # on platforms known to behave badly.
-    platforms_to_skip = ('freebsd4', 'freebsd5', 'freebsd6', 'netbsd5',
+    platforms_to_skip = ('freebsd4', 'freebsd5', 'freebsd6', 'freebsd7', 'freebsd8', 'freebsd9', 'netbsd5',
                          'os2emx')
 
     def _run_and_join(self, script):
diff -ru misc/Python-2.7.3/Modules/_ctypes/libffi/configure misc/build/Python-2.7.3/Modules/_ctypes/libffi/configure
--- misc/Python-2.7.3/Modules/_ctypes/libffi/configure	2012-04-09 18:07:33.000000000 -0500
+++ misc/build/Python-2.7.3/Modules/_ctypes/libffi/configure	2012-07-24 22:39:03.000000000 -0500
@@ -6289,7 +6289,7 @@
   rm -rf conftest*
   ;;
 
-x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
+amd64-*-freebsd*|x86_64-*kfreebsd*-gnu|x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*| \
 s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
   # Find out which ABI we are using.
   echo 'int i;' > conftest.$ac_ext
diff -ru misc/Python-2.7.3/Python/thread_pthread.h misc/build/Python-2.7.3/Python/thread_pthread.h
--- misc/Python-2.7.3/Python/thread_pthread.h	2012-04-09 18:07:35.000000000 -0500
+++ misc/build/Python-2.7.3/Python/thread_pthread.h	2012-07-24 22:39:03.000000000 -0500
@@ -56,7 +56,6 @@
    in default setting.  So the process scope is preferred to get
    enough number of threads to work. */
 #ifdef __FreeBSD__
-#include <osreldate.h>
 #if __FreeBSD_version >= 500000 && __FreeBSD_version < 504101
 #undef PTHREAD_SYSTEM_SCHED_SUPPORTED
 #endif
@@ -161,6 +160,9 @@
 {
     pthread_t th;
     int status;
+#ifdef __FreeBSD__
+	sigset_t set, oset;
+#endif
 #if defined(THREAD_STACK_SIZE) || defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
     pthread_attr_t attrs;
 #endif
@@ -172,6 +174,9 @@
     if (!initialized)
         PyThread_init_thread();
 
+#ifdef __FreeBSD__
+	SET_THREAD_SIGMASK(SIG_SETMASK, &oset, NULL);
+#endif
 #if defined(THREAD_STACK_SIZE) || defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
     if (pthread_attr_init(&attrs) != 0)
         return -1;
@@ -189,7 +194,10 @@
 #if defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
     pthread_attr_setscope(&attrs, PTHREAD_SCOPE_SYSTEM);
 #endif
-
+#ifdef __FreeBSD__
+	sigfillset(&set);
+	SET_THREAD_SIGMASK(SIG_BLOCK, &set, &oset);
+#endif
     status = pthread_create(&th,
 #if defined(THREAD_STACK_SIZE) || defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
                              &attrs,
@@ -200,6 +208,9 @@
                              (void *)arg
                              );
 
+#ifdef __FreeBSD__
+	SET_THREAD_SIGMASK(SIG_SETMASK, &oset, NULL);
+#endif
 #if defined(THREAD_STACK_SIZE) || defined(PTHREAD_SYSTEM_SCHED_SUPPORTED)
     pthread_attr_destroy(&attrs);
 #endif
diff -ru misc/Python-2.7.3/configure misc/build/Python-2.7.3/configure
--- misc/Python-2.7.3/configure	2012-04-09 18:07:36.000000000 -0500
+++ misc/build/Python-2.7.3/configure	2012-07-24 22:39:03.000000000 -0500
@@ -4916,7 +4916,7 @@
           ;;
     SunOS*)
 	  LDLIBRARY='libpython$(VERSION).so'
-	  BLDLIBRARY='-Wl,-R,$(LIBDIR) -L. -lpython$(VERSION)'
+	  BLDLIBRARY=-R\'\$\$ORIGIN\'' -L. -lpython$(VERSION)'
 	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
 	  INSTSONAME="$LDLIBRARY".$SOVERSION
           ;;
@@ -4924,11 +4924,6 @@
 	  LDLIBRARY='libpython$(VERSION).so'
 	  BLDLIBRARY='-L. -lpython$(VERSION)'
 	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
-	  case $ac_sys_system in
-	      FreeBSD*)
-		SOVERSION=`echo $SOVERSION|cut -d "." -f 1`
-		;;
-	  esac
 	  INSTSONAME="$LDLIBRARY".$SOVERSION
 	  ;;
     hp*|HP*)
diff -ru misc/Python-2.7.3/setup.py misc/build/Python-2.7.3/setup.py
--- misc/Python-2.7.3/setup.py	2012-04-09 18:07:36.000000000 -0500
+++ misc/build/Python-2.7.3/setup.py	2012-07-24 22:39:03.000000000 -0500
@@ -1432,7 +1432,7 @@
             macros = dict()
             libraries = []
 
-        elif platform in ('freebsd4', 'freebsd5', 'freebsd6', 'freebsd7', 'freebsd8'):
+        elif platform in ('freebsd4', 'freebsd5', 'freebsd6', 'freebsd7', 'freebsd8', 'freebsd9'):
             # FreeBSD's P1003.1b semaphore support is very experimental
             # and has many known problems. (as of June 2008)
             macros = dict()
@@ -1484,7 +1484,7 @@
             missing.append('linuxaudiodev')
 
         if (platform in ('linux2', 'freebsd4', 'freebsd5', 'freebsd6',
-                        'freebsd7', 'freebsd8')
+                        'freebsd7', 'freebsd8', 'freebsd9')
             or platform.startswith("gnukfreebsd")):
             exts.append( Extension('ossaudiodev', ['ossaudiodev.c']) )
         else: