Adding some information about building for Windows.

INSTALL

@@ -1,4 +1,4 @@
-# INSTALL uchardet
+# Building uchardet (generic)
 
 `uchardet` uses a typical cmake installation.
 
@@ -14,3 +14,13 @@ Alternatively, use `ccmake`, curses interface to `cmake`.
 * Install with `make install`.
 
 Read `README` for more details on uchardet.
+
+# Building uchardet on Windows
+
+The above procedure is generic, which means it should work on any platform.
+In particular, it works well on Linux.
+
+The procedure is the same on Windows, but if you want more details (for
+instance which tools to use in order to run CMake on Windows, compiler
+information, etc.), the following link may be useful:
+https://github.com/BYVoid/uchardet/issues/39#issuecomment-353873891

README.md

@@ -182,6 +182,20 @@ Techniques used by universalchardet are described at http://www.mozilla.org/proj
 
     brew install uchardet
 
+### Windows
+
+Binary packages are provided in Fedora repository. There may exist other
+pre-built packages but I am not aware of them.
+Nevertheless the library is very easily and quickly compilable under
+Windows as well, so finding a binary package is not necessary.
+Some did it successfully with the [CMake Windows
+installer](https://cmake.org/download/) and MinGW. It should be possible
+to use MinGW-w64 instead of MinGW, in particular to build both 32 and
+64-bit DLL libraries).
+
+Note also that it is very easily cross-buildable (for instance from a
+GNU/Linux machine).
+
 ### Build from source
 
 Releases are available from: