Added thirdparty: boost library

thirdparty/include/boost/process/v2/impl/environment.ipp

@@ -0,0 +1,47 @@
+//
+// boost/process/v2/impl/environment.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2022 Klemens D. Morgenstern (klemens dot morgenstern at gmx dot net)
+//
+// 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_PROCESS_V2_IMPL_ENVIRONMENT_IPP
+#define BOOST_PROCESS_V2_IMPL_ENVIRONMENT_IPP
+
+#include <boost/process/v2/detail/config.hpp>
+#include <boost/process/v2/default_launcher.hpp>
+#include <boost/process/v2/environment.hpp>
+
+BOOST_PROCESS_V2_BEGIN_NAMESPACE
+
+#if defined(BOOST_PROCESS_V2_WINDOWS)
+
+error_code process_environment::on_setup(windows::default_launcher & launcher, const filesystem::path &, const std::wstring &)
+{
+    if (!unicode_env.empty() && !ec)
+    {
+      launcher.creation_flags |= CREATE_UNICODE_ENVIRONMENT ;
+      launcher.environment = unicode_env.data();
+    }
+
+    return ec;
+};
+
+#else
+
+error_code process_environment::on_setup(posix::default_launcher & launcher, const filesystem::path &, const char * const *)
+{
+    launcher.env = env.data();
+    return error_code{};
+};
+
+#endif
+
+
+BOOST_PROCESS_V2_END_NAMESPACE
+
+
+#endif //BOOST_PROCESS_V2_IMPL_ENVIRONMENT_IPP