libpqxx on windows

Thank you....
When i tried it..I got error,i am sending it to you.
pls see and if any of u knows how to rectify it....kindly tell me,as it is very much required to proceed further .
Pls find it below:
F:\libpqxx-2.5.3.tar\libpqxx-2.5.3\win32>nmake /f libpqxx.mak ALL
Microsoft (R) Program Maintenance Utility Version 7.10.3077
Copyright (C) Microsoft Corporation. All rights reserved.
You can specify a configuration when running NMAKE
by defining the macro CFG on the command line. For example:
NMAKE /f libpqxx.mak configuration

Possible choices for configuration are:

"RELEASE" (release Win32 (x86) Dynamic-Link Library and Static Library)
"DEBUG" (debug Win32 (x86) Dynamic-Link Library and Static Library)
"DLL" (release & debug Win32 (x86) Dynamic-Link Library)
"STATIC" (release & debug Win32 (x86) Static Library")
"ALL" Both the DLL and STATIC builds.

Building dll
if not exist "lib/" mkdir "lib"
if not exist "obj/" mkdir "obj"
libpqxx.cxx
binarystring.cxx
cachedresult.cxx
connection.cxx
connection_base.cxx
..\src\connection_base.cxx(26) : fatal error C1083: Cannot open include file: 's
ys/select.h': No such file or directory
NMAKE : fatal error U1077: 'cl.exe' : return code '0x2'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual Studio .NET 2003\
VC7\BIN\nmake.exe"' : return code '0x2'
Stop.
I searched for this error and i am sending that link also to you.find the link below

http://gborg.postgresql.org/pipermail/libpqxx-general/2004-February/000387.html
but i didn't get anything from this.....Can you pls suggest me......

Thanks&Regards,
Sandhya