Several changes to GNU toolchain based XTchain:

* Fix binutils patch
* Add make and wine tools
* Do not hardcode MinGW library and NT version
* Add licensing information
* General synchronization with LLVM-based XTchain

README.md

@@ -0,0 +1,22 @@
+## XT Toolchain
+This is a GNU-based mingw-w64 toolchain. It currently supports C and C++, and provides a variety of
+tools including IDL, message and resource compilers. The XT Toolchain is also the official build
+environment for compiling XT software, including the FerretOS. Currently, it is targeted at Linux
+host only, however it should be possible to build it in MSYS2 as well.
+
+This software includes:
+ * Binutils
+ * CMake
+ * GCC
+ * Make
+ * Mingw-w64
+ * Ninja
+ * Wine
+
+## Licensing
+The XTchain project includes the scripts for building and assembling a toolchain as well as
+environmental shell. These are licensed under the GPLv3 license. It covers only mentioned
+components that are provided by XTchain directly. For more information on that, refer to the
+COPYING.md file. The final pre-built toolchain is covered by the licenses of the individual,
+external projects. The full list of software incorporated into this toolchain is available in the
+README.md file.