diff --git a/boost/preprocessor/slot/detail/def.hpp b/boost/preprocessor/slot/detail/def.hpp
new file mode 100644
index 0000000..885099e
--- /dev/null
+++ b/boost/preprocessor/slot/detail/def.hpp
@@ -0,0 +1,49 @@
+# /* **************************************************************************
+#  *                                                                          *
+#  *     (C) Copyright Paul Mensonides 2002.
+#  *     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)
+#  *                                                                          *
+#  ************************************************************************** */
+#
+# /* See http://www.boost.org for most recent version. */
+#
+# ifndef BOOST_PREPROCESSOR_SLOT_DETAIL_DEF_HPP
+# define BOOST_PREPROCESSOR_SLOT_DETAIL_DEF_HPP
+#
+# /* BOOST_PP_SLOT_OFFSET_x */
+#
+# define BOOST_PP_SLOT_OFFSET_10(x) (x) % 1000000000UL
+# define BOOST_PP_SLOT_OFFSET_9(x) BOOST_PP_SLOT_OFFSET_10(x) % 100000000UL
+# define BOOST_PP_SLOT_OFFSET_8(x) BOOST_PP_SLOT_OFFSET_9(x) % 10000000UL
+# define BOOST_PP_SLOT_OFFSET_7(x) BOOST_PP_SLOT_OFFSET_8(x) % 1000000UL
+# define BOOST_PP_SLOT_OFFSET_6(x) BOOST_PP_SLOT_OFFSET_7(x) % 100000UL
+# define BOOST_PP_SLOT_OFFSET_5(x) BOOST_PP_SLOT_OFFSET_6(x) % 10000UL
+# define BOOST_PP_SLOT_OFFSET_4(x) BOOST_PP_SLOT_OFFSET_5(x) % 1000UL
+# define BOOST_PP_SLOT_OFFSET_3(x) BOOST_PP_SLOT_OFFSET_4(x) % 100UL
+# define BOOST_PP_SLOT_OFFSET_2(x) BOOST_PP_SLOT_OFFSET_3(x) % 10UL
+#
+# /* BOOST_PP_SLOT_CC_x */
+#
+# define BOOST_PP_SLOT_CC_2(a, b) BOOST_PP_SLOT_CC_2_D(a, b)
+# define BOOST_PP_SLOT_CC_3(a, b, c) BOOST_PP_SLOT_CC_3_D(a, b, c)
+# define BOOST_PP_SLOT_CC_4(a, b, c, d) BOOST_PP_SLOT_CC_4_D(a, b, c, d)
+# define BOOST_PP_SLOT_CC_5(a, b, c, d, e) BOOST_PP_SLOT_CC_5_D(a, b, c, d, e)
+# define BOOST_PP_SLOT_CC_6(a, b, c, d, e, f) BOOST_PP_SLOT_CC_6_D(a, b, c, d, e, f)
+# define BOOST_PP_SLOT_CC_7(a, b, c, d, e, f, g) BOOST_PP_SLOT_CC_7_D(a, b, c, d, e, f, g)
+# define BOOST_PP_SLOT_CC_8(a, b, c, d, e, f, g, h) BOOST_PP_SLOT_CC_8_D(a, b, c, d, e, f, g, h)
+# define BOOST_PP_SLOT_CC_9(a, b, c, d, e, f, g, h, i) BOOST_PP_SLOT_CC_9_D(a, b, c, d, e, f, g, h, i)
+# define BOOST_PP_SLOT_CC_10(a, b, c, d, e, f, g, h, i, j) BOOST_PP_SLOT_CC_10_D(a, b, c, d, e, f, g, h, i, j)
+#
+# define BOOST_PP_SLOT_CC_2_D(a, b) a ## b
+# define BOOST_PP_SLOT_CC_3_D(a, b, c) a ## b ## c
+# define BOOST_PP_SLOT_CC_4_D(a, b, c, d) a ## b ## c ## d
+# define BOOST_PP_SLOT_CC_5_D(a, b, c, d, e) a ## b ## c ## d ## e
+# define BOOST_PP_SLOT_CC_6_D(a, b, c, d, e, f) a ## b ## c ## d ## e ## f
+# define BOOST_PP_SLOT_CC_7_D(a, b, c, d, e, f, g) a ## b ## c ## d ## e ## f ## g
+# define BOOST_PP_SLOT_CC_8_D(a, b, c, d, e, f, g, h) a ## b ## c ## d ## e ## f ## g ## h
+# define BOOST_PP_SLOT_CC_9_D(a, b, c, d, e, f, g, h, i) a ## b ## c ## d ## e ## f ## g ## h ## i
+# define BOOST_PP_SLOT_CC_10_D(a, b, c, d, e, f, g, h, i, j) a ## b ## c ## d ## e ## f ## g ## h ## i ## j
+#
+# endif