  This is the first check-in on the windowscompilers branch and it adds the
  <a Mars C compiler</a>

  The user should have dmc installed in c:\DM with zlib in
  and

  typing -f win\Makefile.dmc builds fossil.exe in dmcobj

  The following files were edited or added:
  <p>Checks if one of the windows compilers  is used. If so we define _WIN32.
     Defining _WIN32 is normally done by<br>#include &lt;windows.h&gt;<br>
     However most of the time we don't use windows.h.  </p>
     <p>Adding an other windows compiler is done by adding<br>
     "|| defined(__COMPILER_IDENTIFIER__)"<br>
     and maybe some special things in the files below.
     Like
     <pre>
     </pre>
     </p>
  <p>These have all __MINGW32__ replaced by _WIN32. And in some places special processing for either MINGW32 or DMC
  <p>In popen2 the _open_osfHandle call first parameter is cast to a long. DMC refused to compile without the cast.</p>
  <p>DMC complained that it didn't knew of time_t in rss.h. time.h came after
     rss.h. Switching the two solved it!
  </p>
  <p>added tcl code to generate Makefile.dmc. tclsh src/makemake.tcl dmc
     prints to stdout the makefile. As a convienience to the
     end-user I added the win/Makefile.dmc to the repository.
     There are few changeable variables in there for adjusting path,
     CFLAGS LIBS etc.
  </p>
  <p>These are needed because DMC and MSVC doesn't provided them.
  dirent.h is copied verbatim from the net. unistd.h I found on the
  net too, but added some defines.
  <p>The problem with windows it doesn't have AWK standard installed.
  version.c creates VERSION.h. It is a very simple C-program and
  doesn't do a lot of checking.
  </p>