Windows x64 CMake generation fails with Cygwin path error

Hi friends: I tried to compile wireshark at WIN7 with CMAKE under 64bit option,however the result is failed I can not figure out the reason,could you help me to have a check.I appreciate any suggestions from you.Thanks a lot,i like this platform.below is the environment setting and command.

call "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat" x86_amd64
set WIRESHARK_BASE_DIR=E:\Wireshark_Plugin\SecVersion\wireshark-master
set WIRESHARK_CYGWIN_INSTALL_PATH==E:\Software\Cygwin\bin
set WIRESHARK_TARGET_PLATFORM=win64
set QT5_BASE_DIR=E:\Software\QT\5.6\msvc2013_64
set  VISUALSTUDIOVERSION=12.0
set MSVC_VARIANT=MSVC2013EE
e:
cd  E:\Wireshark_Plugin\SecVersion\wsbuild
cmake -DENABLE_CHM_GUIDES=on -G "Visual Studio 12 Win64" ..\wireshark-master
pause
E:\Wireshark_Plugin\SecVersion\wsbuild>call "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat" x86_amd64
– The C compiler identification is MSVC 18.0.40629.0
– The CXX compiler identification is MSVC 18.0.40629.0
– Check for working C compiler using: Visual Studio 12 2013 Win64
– Check for working C compiler using: Visual Studio 12 2013 Win64 – works
– Detecting C compiler ABI info
– Detecting C compiler ABI info - done
– Check for working CXX compiler using: Visual Studio 12 2013 Win64
– Check for working CXX compiler using: Visual Studio 12 2013 Win64 – works
– Detecting CXX compiler ABI info
– Detecting CXX compiler ABI info - done
– Detecting CXX compile features
– Detecting CXX compile features - done
– Generating build using CMake 3.5.2
– Found POWERSHELL: C:/Windows/System32/WindowsPowerShell/v1.0/powershell.exe
– Building for win64 using Visual Studio 12 2013 Win64
Working in E:\Wireshark_Plugin\SecVersion\wireshark-master\wireshark-win64-libs
Tag 2016-05-10 found. Skipping.
– No custom file found in E:/Wireshark_Plugin/SecVersion/wireshark-master
– Configuration types: Debug;Release;MinSizeRel;RelWithDebInfo
– CMAKE_C_FLAGS_RELWITHDEBINFO: /MD /Zi /O2 /Ob1 /D NDEBUG
– CMAKE_CXX_FLAGS_RELWITHDEBINFO: /MD /Zi /O2 /Ob1 /D NDEBUG
– V: 2.1.0-git, MaV: 2, MiV: 1, PL: 0, EV: -git.
– Found PythonInterp: C:/Python27/python.exe (found version "2.7.8")
– Found python module asn2wrs: E:\Wireshark_Plugin\SecVersion\wireshark-master\tools\asn2wrs.py
– Checking for c-compiler flag: /MP
– Performing Test C__MP_VALID
– Performing Test C__MP_VALID - Success
– Checking for c-compiler flag: /Zo
– Performing Test C__Zo_VALID
– Performing Test C__Zo_VALID - Success
– Checking for c-compiler flag: /w34295 /w34189
– Performing Test C__w34295_w34189_VALID
– Performing Test C__w34295_w34189_VALID - Success
– Checking for c++-compiler flag: /MP
– Performing Test CXX__MP_VALID
– Performing Test CXX__MP_VALID - Success
– Checking for c++-compiler flag: /Zo
– Performing Test CXX__Zo_VALID
– Performing Test CXX__Zo_VALID - Success
– Checking for c++-compiler flag: /w34295 /w34189
– Performing Test CXX__w34295_w34189_VALID
– Performing Test CXX__w34295_w34189_VALID - Success
statuscheck linker flag - test linker flags: -Wl,–as-needed
– Performing Test WS_LD_FLAG_VALID0
– Performing Test WS_LD_FLAG_VALID0 - Failed
statuscheck linker flag - test linker flags: -pie
– Performing Test WS_LD_FLAG_VALID1
– Performing Test WS_LD_FLAG_VALID1 - Failed
– Looking for sys/types.h
– Looking for sys/types.h - found
– Looking for stdint.h
– Looking for stdint.h - found
– Looking for stddef.h
– Looking for stddef.h - found
– Check size of off64_t
– Check size of off64_t - failed
– Looking for fseeko
– Looking for fseeko - not found
– Looking for unistd.h
– Looking for unistd.h - not found
– Packagelist: AIRPCAP;CAP;CARES;GCRYPT;GEOIP;GLIB2;GMODULE2;GNUTLS;GTHREAD2;GTK2;Gettext;Git;KERBEROS;LEX;LIBSSH;LUA;M;PCAP;POD;PORTAUDIO;Perl;PythonInterp;Qt5Core;Qt5LinguistTools;Qt5Multimedia;Qt5PrintSupport;Qt5Svg;Qt5Widgets;Qt5WinExtras;SBC;SED;SETCAP;SH;SMI;WINSPARKLE;YACC;YAPP;ZLIB
– Found AIRPCAP: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/AirPcap_Devpack_4_1_0_1622/Airpcap_Devpack/include
– AIRPCAP FOUND
– AIRPCAP includes: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/AirPcap_Devpack_4_1_0_1622/Airpcap_Devpack/include
– AIRPCAP libs: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/AirPcap_Devpack_4_1_0_1622/Airpcap_Devpack/lib/airpcap.lib
– Could NOT find PkgConfig (missing:  PKG_CONFIG_EXECUTABLE)
– Checking for one of the modules 'libcap'
– Could NOT find CAP (missing:  CAP_LIBRARY CAP_INCLUDE_DIR)
– CAP NOT FOUND
– Found CARES: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/c-ares-1.11.0-win64ws/lib/libcares-2.lib
– CARES FOUND
– CARES includes: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/c-ares-1.11.0-win64ws/include
– CARES libs: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/c-ares-1.11.0-win64ws/lib/libcares-2.lib
– Found GCRYPT: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gnutls-3.2.15-2.9-win64ws/bin/libgcrypt-20.lib (found suitable version "1.
6.2", minimum required is "1.4.2")
– GCRYPT FOUND
– GCRYPT includes: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gnutls-3.2.15-2.9-win64ws/include
– GCRYPT libs: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gnutls-3.2.15-2.9-win64ws/bin/libgcrypt-20.lib;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gnutls-3.2.15-2.9-win64ws/bin/libgpg-er
ror6-0.lib
– Could NOT find PkgConfig (missing:  PKG_CONFIG_EXECUTABLE)
– Checking for one of the modules 'geoip'
– Found GEOIP: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-
libs/GeoIP-1.6.6-win64ws/lib/libGeoIP-1.lib
– Looking for GeoIP_country_name_by_ipnum_v6
– Looking for GeoIP_country_name_by_ipnum_v6 - found
– GEOIP FOUND
– GEOIP includes: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/GeoIP-1.6.6-win64ws/include
– GEOIP libs: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/GeoIP-1.6.6-win64ws/lib/libGeoIP-1.lib
– Could NOT find PkgConfig (missing:  PKG_CONFIG_EXECUTABLE)
– Checking for one of the modules 'glib-2.0>=2.14.0'
– Found GLIB2: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/glib-2.0.lib
– GLIB2 FOUND
– GLIB2 includes: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include/glib-2.0;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/glib-2.0/include
– GLIB2 libs: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/glib-2.0.lib
– Could NOT find PkgConfig (missing:  PKG_CONFIG_EXECUTABLE)
– Checking for one of the modules 'gmodule-2.0'
– Found GMODULE2: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/gmodule-2.0.lib
– GMODULE2 FOUND
– GMODULE2 includes: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include/glib-2.0
– GMODULE2 libs: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/gmodule-2.0.lib
– Could NOT find PkgConfig (missing:  PKG_CONFIG_EXECUTABLE)
– Checking for one of the modules 'gnutls'
– Found GNUTLS: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gnutls-3.2.15-2.9-win64ws/bin/libgnutls-28.lib (found suitable version "3.2.15", minimum required is "2.12.0")
– GNUTLS FOUND
– GNUTLS includes: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gnutls-3.2.15-2.9-win64ws/include
– GNUTLS libs: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gnutls-3.2.15-2.9-win64ws/bin/libgnutls-28.lib
– Could NOT find PkgConfig (missing:  PKG_CONFIG_EXECUTABLE)
– Checking for one of the modules 'gthread-2.0'
– Found GTHREAD2: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/glib-2.0.lib
– GTHREAD2 FOUND
– GTHREAD2 includes: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include/glib-2.0/glib
– GTHREAD2 libs: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/glib-2.0.lib
– Found GTK2_GTK: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/gtk-win32-2.0.lib
– GTK2 FOUND
– GTK2 includes: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include/gtk-2.0;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include/freetype2;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include/glib-2.0;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/glib-2.0/include;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include/atk-1.0;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include/gdk-pixbuf-2.0;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include/cairo;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/include/pango-1.0;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/gtk-2.0/include
– GTK2 libs: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/glib-2.0.lib;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/gobject-2.0.lib;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/atk-1.0.lib;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/gmodule-2.0.lib;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/gdk_pixbuf-2.0.lib;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/cairo.lib;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/pango-1.0.lib;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/pangocairo-1.0.lib;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/gdk-win32-2.0.lib;E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/gtk2/lib/gtk-win32-2.0.lib
– Could NOT find Gettext (missing:  GETTEXT_MSGMERGE_EXECUTABLE GETTEXT_MSGFMT_
EXECUTABLE)
– GETTEXT NOT FOUND
– Could NOT find Git (missing:  GIT_EXECUTABLE)
– Git NOT FOUND
– Could NOT find PkgConfig (missing:  PKG_CONFIG_EXECUTABLE)
– Checking for one of the modules 'krb5;mit-krb5;heimdal-krb5'
– Found KERBEROS: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/kfw-3-2-2-x64-ws/lib/krb5_64.lib
– Looking for heimdal_version
– Looking for heimdal_version - not found
– KERBEROS FOUND
– KERBEROS includes: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/kfw-3-2-2-x64-ws/include
– KERBEROS libs: E:/Wireshark_Plugin/SecVersion/wireshark-master/Wireshark-win64-libs/kfw-3-2-2-x64-ws/lib/krb5_64.lib
CMake Error at cmake/modules/FindCygwin.cmake:59 (message):
Cygwin installation path was not detected.  You can set it with WIRESHARK_CYGWIN_INSTALL_PATH environment variable.
Call Stack (most recent call first):
cmake/modules/FindLEX.cmake:5 (INCLUDE)
CMakeLists.txt:835 (find_package)
– Configuring incomplete, errors occurred!
See also "E:/Wireshark_Plugin/SecVersion/wsbuild/CMakeFiles/CMakeOutput.log".
See also "E:/Wireshark_Plugin/SecVersion/wsbuild/CMakeFiles/CMakeError.log".