--- boost/tr1/detail/config.hpp.orig	2010-06-12 04:30:03.000000000 -0500
+++ boost/tr1/detail/config.hpp	2013-07-30 14:26:57.000000000 -0500
@@ -9,6 +9,7 @@
 #include <cstddef>
 
 #if (defined(__GNUC__) && !(defined(linux) || defined(__linux) || defined(__linux__))) \
+   || (!defined(__FreeBSD__)) \
    || (!defined(_AIX) && defined(__IBMCPP__)  && (__IBMCPP__ >= 800)) 
    // Disable use of #include_next on Linux as typically we are installed in a 
    // directory that is searched *after* the std lib include path.
--- boost/tr1/detail/config_all.hpp.orig	2011-07-25 04:28:58.000000000 -0500
+++ boost/tr1/detail/config_all.hpp	2013-07-30 15:31:10.000000000 -0500
@@ -85,6 +85,8 @@
 #  elif defined(__GNUC__) && __GNUC__ >= 3
 #    if defined(BOOST_TR1_GCC_INCLUDE_PATH)
 #      define BOOST_TR1_STD_HEADER(name) <../BOOST_TR1_GCC_INCLUDE_PATH/name>
+#    elif (defined(__FreeBSD__))
+#      define BOOST_TR1_STD_HEADER(name) <../__GNUC__.__GNUC_MINOR__/name>
 #    elif ( (__GNUC__ == 3 ) && ((__GNUC_MINOR__ == 0) || ((__GNUC_MINOR__ < 3) && defined(__APPLE_CC__))))
 #      define BOOST_TR1_STD_HEADER(name) <../g++-v3/name>
 #    else
@@ -107,7 +109,7 @@
 #    endif
 
 #      if !defined(BOOST_TR1_DISABLE_INCLUDE_NEXT) && !defined(__ICC) \
-            && (defined(linux) || defined(__linux) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__))
+            && (defined(__FreeBSD__) || defined(linux) || defined(__linux) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__))
          // Disable use of #include_next on Linux as typically we are installed in a directory that is searched
          // *after* the std lib include path:
 #        define BOOST_TR1_DISABLE_INCLUDE_NEXT