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

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

@@ -0,0 +1,54 @@
+/*!
+@file
+Forward declares `boost::hana::all_of`.
+
+@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_ALL_OF_HPP
+#define BOOST_HANA_FWD_ALL_OF_HPP
+
+#include <boost/hana/config.hpp>
+#include <boost/hana/core/when.hpp>
+
+
+BOOST_HANA_NAMESPACE_BEGIN
+    //! Returns whether all the keys of the structure satisfy the `predicate`.
+    //! @ingroup group-Searchable
+    //!
+    //! If the structure is not finite, `predicate` has to return a false-
+    //! valued `Logical` after looking at a finite number of keys for this
+    //! method to finish.
+    //!
+    //!
+    //! @param xs
+    //! The structure to search.
+    //!
+    //! @param predicate
+    //! A function called as `predicate(k)`, where `k` is a key of the
+    //! structure, and returning a `Logical`.
+    //!
+    //!
+    //! Example
+    //! -------
+    //! @include example/all_of.cpp
+#ifdef BOOST_HANA_DOXYGEN_INVOKED
+    constexpr auto all_of = [](auto&& xs, auto&& predicate) {
+        return tag-dispatched;
+    };
+#else
+    template <typename S, typename = void>
+    struct all_of_impl : all_of_impl<S, when<true>> { };
+
+    struct all_of_t {
+        template <typename Xs, typename Pred>
+        constexpr auto operator()(Xs&& xs, Pred&& pred) const;
+    };
+
+    constexpr all_of_t all_of{};
+#endif
+BOOST_HANA_NAMESPACE_END
+
+#endif // !BOOST_HANA_FWD_ALL_OF_HPP