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

depends/x86_64-pc-linux-gnu/include/boost/filesystem/string_file.hpp

@@ -0,0 +1,43 @@
+//  filesystem/string_file.hpp  --------------------------------------------------------//
+
+//  Copyright Beman Dawes 2015
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#ifndef BOOST_FILESYSTEM_STRING_FILE_HPP
+#define BOOST_FILESYSTEM_STRING_FILE_HPP
+
+#include <string>
+#include <boost/filesystem/fstream.hpp>
+#include <boost/filesystem/operations.hpp>
+
+namespace boost
+{
+namespace filesystem
+{
+inline
+void save_string_file(const path& p, const std::string& str)
+{
+  ofstream file;
+  file.exceptions(std::ofstream::failbit | std::ofstream::badbit);
+  file.open(p, std::ios_base::binary);
+  file.write(str.c_str(), str.size());
+}
+
+inline
+void load_string_file(const path& p, std::string& str)
+{
+  ifstream file;
+  file.exceptions(std::ifstream::failbit | std::ifstream::badbit);
+  file.open(p, std::ios_base::binary);
+  std::size_t sz = static_cast<std::size_t>(file_size(p));
+  str.resize(sz, '\0');
+  file.read(&str[0], sz);
+}
+}  // namespace filesystem
+}  // namespace boost
+
+#endif  // include guard