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The problem message is the following:

/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /lib/../lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /lib/../lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/../lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/../lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /lib/../lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/../lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/libwpcap.a when searching for -lwpcap
/usr/lib/gcc/x86_64-pc-cygwin/4.9.3/../../../../x86_64-pc-cygwin/bin/ld: cannot find -lwpcap
collect2: error: ld returned 1 exit status

I already researched similar problems with this. I can assume that this is 64bit/32bit compatible problem or need to install libpcap-dev or etc. Could you please tell me more exact solution(link or code) specifically about lwpcap's problem on Cygwin64.

My system environment is CYGWIN_NT-10.0 DESKTOP-DB9DM81 2.2.1(0.289/5/3) 2015-08-20 11:42 x86_64 Cygwin on windows10.

Thank you in advance.

Pong
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1 Answers1

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"libpcap-dev" sounds like a Linux package, but this is Windows. You need to install the WinPcap developer's pack; see, for example, these "WinPcap for Cygwin" instructions.