这肯定是一个相对较新的问题，但我仍然陷入困境。我知道有一个简单的解决方案。我已经进行了一些谷歌搜索，但找不到确切的答案。这是我得到的错误...
C:\Ruby193\include\ruby-1.9.1\i386-mingw32>gem install pcap
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing pcap:
ERROR: Failed to build gem native extension.
C:/Ruby193/bin/ruby.exe extconf.rb
checking for socket() in -lsocket... no
checking for gethostbyname() in -lxnet... no
checking for hstrerror()... no
checking for pcap.h... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
显然我缺少一些库，但我不知道如何获取这些库，也不知道在尝试安装 pcap 时它们应该位于哪里。
mkmf.log
have_library: checking for socket() in -lsocket... -------------------- no
"gcc -o conftest -IC:/Ruby193/include/ruby-1.9.1/i386-mingw32 -IC:/Ruby193/include/ruby-1.9.1/ruby/backward -IC:/Ruby193/include/ruby-1.9.1 -I. -I/usr/local/include conftest.c -L. -LC:/Ruby193/lib -L/usr/local/lib -lmsvcrt-ruby191 -lshell32 -lws2_32 -limagehlp "
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5: int main() {return 0;}
/* end */
"gcc -o conftest -IC:/Ruby193/include/ruby-1.9.1/i386-mingw32 -IC:/Ruby193/include/ruby-1.9.1/ruby/backward -IC:/Ruby193/include/ruby-1.9.1 -I. -I/usr/local/include conftest.c -L. -LC:/Ruby193/lib -L/usr/local/lib -lmsvcrt-ruby191 -lsocket -lshell32 -lws2_32 -limagehlp "
c:/users/user/downloads/mingw/bin/../lib/gcc/mingw32/4.5.2/../../../../mingw32/bin/ld.exe: cannot find -lsocket
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5:
6: /*top*/
7: int main() {return 0;}
8: int t() { void ((*volatile p)()); p = (void ((*)()))socket; return 0; }
/* end */
"gcc -o conftest -IC:/Ruby193/include/ruby-1.9.1/i386-mingw32 -IC:/Ruby193/include/ruby-1.9.1/ruby/backward -IC:/Ruby193/include/ruby-1.9.1 -I. -I/usr/local/include conftest.c -L. -LC:/Ruby193/lib -L/usr/local/lib -lmsvcrt-ruby191 -lsocket -lshell32 -lws2_32 -limagehlp "
conftest.c: In function 't':
conftest.c:8:1: error: too few arguments to function 'socket'
c:\users\user\downloads\mingw\bin\../lib/gcc/mingw32/4.5.2/../../../../include/winsock2.h:553:35: note: declared here
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5:
6: /*top*/
7: int main() {return 0;}
8: int t() { socket(); return 0; }
/* end */
--------------------
have_library: checking for gethostbyname() in -lxnet... -------------------- no
"gcc -o conftest -IC:/Ruby193/include/ruby-1.9.1/i386-mingw32 -IC:/Ruby193/include/ruby-1.9.1/ruby/backward -IC:/Ruby193/include/ruby-1.9.1 -I. -I/usr/local/include conftest.c -L. -LC:/Ruby193/lib -L/usr/local/lib -lmsvcrt-ruby191 -lxnet -lshell32 -lws2_32 -limagehlp "
c:/users/user/downloads/mingw/bin/../lib/gcc/mingw32/4.5.2/../../../../mingw32/bin/ld.exe: cannot find -lxnet
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5:
6: /*top*/
7: int main() {return 0;}
8: int t() { void ((*volatile p)()); p = (void ((*)()))gethostbyname; return 0; }
/* end */
"gcc -o conftest -IC:/Ruby193/include/ruby-1.9.1/i386-mingw32 -IC:/Ruby193/include/ruby-1.9.1/ruby/backward -IC:/Ruby193/include/ruby-1.9.1 -I. -I/usr/local/include conftest.c -L. -LC:/Ruby193/lib -L/usr/local/lib -lmsvcrt-ruby191 -lxnet -lshell32 -lws2_32 -limagehlp "
conftest.c: In function 't':
conftest.c:8:1: error: too few arguments to function 'gethostbyname'
c:\users\user\downloads\mingw\bin\../lib/gcc/mingw32/4.5.2/../../../../include/winsock2.h:555:57: note: declared here
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5:
6: /*top*/
7: int main() {return 0;}
8: int t() { gethostbyname(); return 0; }
/* end */
--------------------
have_func: checking for hstrerror()... -------------------- no
"gcc -o conftest -IC:/Ruby193/include/ruby-1.9.1/i386-mingw32 -IC:/Ruby193/include/ruby-1.9.1/ruby/backward -IC:/Ruby193/include/ruby-1.9.1 -I. -I/usr/local/include conftest.c -L. -LC:/Ruby193/lib -L/usr/local/lib -lmsvcrt-ruby191 -lshell32 -lws2_32 -limagehlp "
conftest.c: In function 't':
conftest.c:8:53: error: 'hstrerror' undeclared (first use in this function)
conftest.c:8:53: note: each undeclared identifier is reported only once for each function it appears in
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5:
6: /*top*/
7: int main() {return 0;}
8: int t() { void ((*volatile p)()); p = (void ((*)()))hstrerror; return 0; }
/* end */
"gcc -o conftest -IC:/Ruby193/include/ruby-1.9.1/i386-mingw32 -IC:/Ruby193/include/ruby-1.9.1/ruby/backward -IC:/Ruby193/include/ruby-1.9.1 -I. -I/usr/local/include conftest.c -L. -LC:/Ruby193/lib -L/usr/local/lib -lmsvcrt-ruby191 -lshell32 -lws2_32 -limagehlp "
C:\Users\USER\AppData\Local\Temp\ccbjKHSc.o:conftest.c:(.text+0x19): undefined reference to `hstrerror'
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5:
6: /*top*/
7: int main() {return 0;}
8: int t() { hstrerror(); return 0; }
/* end */
--------------------
have_header: checking for pcap.h... -------------------- no
"gcc -E -IC:/Ruby193/include/ruby-1.9.1/i386-mingw32 -IC:/Ruby193/include/ruby-1.9.1/ruby/backward -IC:/Ruby193/include/ruby-1.9.1 -I. -I/usr/local/include conftest.c -o conftest.i"
conftest.c:5:18: fatal error: pcap.h: No such file or directory
compilation terminated.
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5: #include <pcap.h>
/* end */
--------------------
最终的解决方案是不使用 pcap rub，这似乎相当过时。
我尝试了 PCAP rub，但仍然遇到问题。您可以按照thread http://www.ruby-forum.com/topic/3469827#1041833在这里，乔姆最终帮助我启动并运行。
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