OK, seems that I've almost completed the native Win32 MinGW port that uses
the same ./configure script and Unix Makefiles (of course updated to
support mingw32 target), so keepeng it in sync should not became the
nigntmare as with MSVC/Mac/... non-unix systems. If it works, maybe to add
it to the stock distribution after some testing? :-)

A special care was taken to not break any existing configuration (no
Gnu make conditional operators etc.), so after applying the patch OCaml
*should* configure and compile on all hosts that were supported before (if
I ocasionally did not break something).

The port supports the same set of libraries as the MSVC one. Both bytecode
and native modes seem to work properly.

Problems
--------

1. Profiling mode (gprof) does not work under MinGW (neither it does under
Cygwin port) - I can enable it in ./configure script, but asmrun/i386.S
does not compile when.

2. I have no idea how to integrate the DLL support. I used Cygwin port as a
template, but it also seems to lack it, although Cygwin/Mingw gcc can build
Win32 DLLs without a problem.

How to use it
-------------

1. Make sure you have the latest Cygwin tools from
http://sources.redhat.com/cygwin. "MinGW runtime" and "w32api" packages are
required.

2. Apply the patch attached to this message.