diff --git a/include/boost/predef/os/bsd.h b/include/boost/predef/os/bsd.h
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+/*
+Copyright Rene Rivera 2008-2015
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+#ifndef BOOST_PREDEF_OS_BSD_H
+#define BOOST_PREDEF_OS_BSD_H
+
+/* Special case: OSX will define BSD predefs if the sys/param.h
+ * header is included. We can guard against that, but only if we
+ * detect OSX first. Hence we will force include OSX detection
+ * before doing any BSD detection.
+ */
+#include <boost/predef/os/macos.h>
+
+#include <boost/predef/version_number.h>
+#include <boost/predef/make.h>
+
+/*`
+[heading `BOOST_OS_BSD`]
+
+[@http://en.wikipedia.org/wiki/Berkeley_Software_Distribution BSD] operating system.
+
+BSD has various branch operating systems possible and each detected
+individually. This detects the following variations and sets a specific
+version number macro to match:
+
+* `BOOST_OS_BSD_DRAGONFLY` [@http://en.wikipedia.org/wiki/DragonFly_BSD DragonFly BSD]
+* `BOOST_OS_BSD_FREE` [@http://en.wikipedia.org/wiki/Freebsd FreeBSD]
+* `BOOST_OS_BSD_BSDI` [@http://en.wikipedia.org/wiki/BSD/OS BSDi BSD/OS]
+* `BOOST_OS_BSD_NET` [@http://en.wikipedia.org/wiki/Netbsd NetBSD]
+* `BOOST_OS_BSD_OPEN` [@http://en.wikipedia.org/wiki/Openbsd OpenBSD]
+
+[note The general `BOOST_OS_BSD` is set in all cases to indicate some form
+of BSD. If the above variants is detected the corresponding macro is also set.]
+
+[table
+    [[__predef_symbol__] [__predef_version__]]
+
+    [[`BSD`] [__predef_detection__]]
+    [[`_SYSTYPE_BSD`] [__predef_detection__]]
+
+    [[`BSD4_2`] [4.2.0]]
+    [[`BSD4_3`] [4.3.0]]
+    [[`BSD4_4`] [4.4.0]]
+    [[`BSD`] [V.R.0]]
+    ]
+ */
+
+#include <boost/predef/os/bsd/bsdi.h>
+#include <boost/predef/os/bsd/dragonfly.h>
+#include <boost/predef/os/bsd/free.h>
+#include <boost/predef/os/bsd/open.h>
+#include <boost/predef/os/bsd/net.h>
+
+#ifndef BOOST_OS_BSD
+#define BOOST_OS_BSD BOOST_VERSION_NUMBER_NOT_AVAILABLE
+#endif
+
+#if !defined(BOOST_PREDEF_DETAIL_OS_DETECTED) && ( \
+    defined(BSD) || \
+    defined(_SYSTYPE_BSD) \
+    )
+#   undef BOOST_OS_BSD
+#   include <sys/param.h>
+#   if !defined(BOOST_OS_BSD) && defined(BSD4_4)
+#       define BOOST_OS_BSD BOOST_VERSION_NUMBER(4,4,0)
+#   endif
+#   if !defined(BOOST_OS_BSD) && defined(BSD4_3)
+#       define BOOST_OS_BSD BOOST_VERSION_NUMBER(4,3,0)
+#   endif
+#   if !defined(BOOST_OS_BSD) && defined(BSD4_2)
+#       define BOOST_OS_BSD BOOST_VERSION_NUMBER(4,2,0)
+#   endif
+#   if !defined(BOOST_OS_BSD) && defined(BSD)
+#       define BOOST_OS_BSD BOOST_PREDEF_MAKE_10_VVRR(BSD)
+#   endif
+#   if !defined(BOOST_OS_BSD)
+#       define BOOST_OS_BSD BOOST_VERSION_NUMBER_AVAILABLE
+#   endif
+#endif
+
+#if BOOST_OS_BSD
+#   define BOOST_OS_BSD_AVAILABLE
+#   include <boost/predef/detail/os_detected.h>
+#endif
+
+#define BOOST_OS_BSD_NAME "BSD"
+
+#else
+
+#include <boost/predef/os/bsd/bsdi.h>
+#include <boost/predef/os/bsd/dragonfly.h>
+#include <boost/predef/os/bsd/free.h>
+#include <boost/predef/os/bsd/open.h>
+#include <boost/predef/os/bsd/net.h>
+
+#endif
+
+#include <boost/predef/detail/test.h>
+BOOST_PREDEF_DECLARE_TEST(BOOST_OS_BSD,BOOST_OS_BSD_NAME)