[nem-en] compiling under mingw

[NoiseEHC]

As long as you have
set PATH=C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;C:\Program 
Files\Microsoft Visual Studio 8\SDK\v2.0\Bin;%PATH%
and apply this patch, you can compile...

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Index: C:/MinGW/1.0/home/Administrator/nemerle/configure
===================================================================
--- C:/MinGW/1.0/home/Administrator/nemerle/configure	(revision 6126)
+++ C:/MinGW/1.0/home/Administrator/nemerle/configure	(working copy)
@@ -756,10 +756,10 @@
 # Check if we have MSBuild available
 echo_check_for "MSBuild"
 
-try_execute "${netFRAMEWORK}MSBuild"
+try_execute "${netFRAMEWORK}MSBuild.exe"
 if test $? -lt 126; then
    echo_result found
-   msbuild="${netFRAMEWORK}MSBuild"
+   msbuild="${netFRAMEWORK}MSBuild.exe"
 else
   try_execute "${monopath}xbuild"
   res=$?