stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork

depends/x86_64-pc-linux-gnu/include/boost/hana/fwd/adjust.hpp

@@ -0,0 +1,64 @@
+/*!
+@file
+Forward declares `boost::hana::adjust`.
+
+@copyright Louis Dionne 2013-2017
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+ */
+
+#ifndef BOOST_HANA_FWD_ADJUST_HPP
+#define BOOST_HANA_FWD_ADJUST_HPP
+
+#include <boost/hana/config.hpp>
+#include <boost/hana/core/when.hpp>
+
+
+BOOST_HANA_NAMESPACE_BEGIN
+    //! Apply a function on all the elements of a structure that compare
+    //! equal to some value.
+    //! @ingroup group-Functor
+    //!
+    //!
+    //! Signature
+    //! ---------
+    //! Given `F` a Functor and `U` a type that can be compared with `T`'s,
+    //! the signature is
+    //! \f$
+    //!     \mathtt{adjust} : F(T) \times U \times (T \to T) \to F(T)
+    //! \f$
+    //!
+    //! @param xs
+    //! The structure to adjust with `f`.
+    //!
+    //! @param value
+    //! An object that is compared with each element `x` of the structure.
+    //! Elements of the structure that compare equal to `value` are adjusted
+    //! with the `f` function.
+    //!
+    //! @param f
+    //! A function called as `f(x)` on the element(s) of the structure that
+    //! compare equal to `value`.
+    //!
+    //!
+    //! Example
+    //! -------
+    //! @include example/adjust.cpp
+#ifdef BOOST_HANA_DOXYGEN_INVOKED
+    constexpr auto adjust = [](auto&& xs, auto&& value, auto&& f) {
+        return tag-dispatched;
+    };
+#else
+    template <typename Xs, typename = void>
+    struct adjust_impl : adjust_impl<Xs, when<true>> { };
+
+    struct adjust_t {
+        template <typename Xs, typename Value, typename F>
+        constexpr auto operator()(Xs&& xs, Value&& value, F&& f) const;
+    };
+
+    constexpr adjust_t adjust{};
+#endif
+BOOST_HANA_NAMESPACE_END
+
+#endif // !BOOST_HANA_FWD_ADJUST_HPP