C:\wireshark>Nmake -f Makefile.nmake verify_tools

Microsoft (R) Program Maintenance Utility Version 9.00.21022.08
Copyright (C) Microsoft Corporation.  All rights reserved.


ERROR: The contents of 'C:\wireshark-win32-libs\current_tag.txt' is (unknown).
It should be 2012-02-29.

Checking for required applications:
        cl: /cygdrive/c/Program Files/Microsoft Visual Studio 9.0/VC/BIN/cl
        link: /cygdrive/c/Program Files/Microsoft Visual Studio 9.0/VC/BIN/link

        nmake: /cygdrive/c/Program Files/Microsoft Visual Studio 9.0/VC/BIN/nmak
e
        mt: /cygdrive/c/Program Files/Microsoft SDKs/Windows/v6.0A/bin/mt
        bash: /usr/bin/bash
        bison: /usr/bin/bison
        flex: /usr/bin/flex
        env: /usr/bin/env
        grep: /usr/bin/grep
        /usr/bin/find: /usr/bin/find
        perl: /usr/bin/perl
        C:\Python27\python.exe: /cygdrive/c/Python27/python.exe
        sed: /usr/bin/sed
        unzip: /usr/bin/unzip
        wget: /usr/bin/wget

Can't find:  peflags

ERROR: These application(s) are either not installed or simply can't be found in
 the current PATH: /cygdrive/c/Python27:/cygdrive/c/Program Files/Microsoft Visu
al Studio 9.0/Common7/IDE:/cygdrive/c/Program Files/Microsoft Visual Studio 9.0/
VC/BIN:/cygdrive/c/Program Files/Microsoft Visual Studio 9.0/Common7/Tools:/cygd
rive/c/WINDOWS/Microsoft.NET/Framework/v3.5:/cygdrive/c/WINDOWS/Microsoft.NET/Fr
amework/v2.0.50727:/cygdrive/c/Program Files/Microsoft Visual Studio 9.0/VC/VCPa
ckages:/cygdrive/c/Program Files/Microsoft SDKs/Windows/v6.0A/bin:/cygdrive/c/WI
NDOWS/system32:/cygdrive/c/WINDOWS:/cygdrive/c/WINDOWS/System32/Wbem:/cygdrive/c
/Program Files/TortoiseSVN/bin:/cygdrive/c/Program Files/Microsoft SQL Server/90
/Tools/binn/:.:C:cygwin/bin :/usr/bin:/cygdrive/c/wireshark-win32-libs/gtk2/bin:
/cygdrive/c/bin:/cygdrive/c/wireshark-win32-libs/zlib125:..

For additional help, please visit:
    http://www.wireshark.org/docs/wsdg_html_chunked/ChSetupWin32.html

NMAKE : fatal error U1077: 'c:\cygwin\bin\bash.EXE' : return code '0x1'
Stop.
/******************************************************************************/

This is the error I am getting after following the procedure. I couldn't get the files from trunk repository. So downloaded from the alternative link given in the wireshark developers' guide. i tried reinstalling the cygwin. the problem still persists.