libjingle的Xmpppump汇编问题

Question

我刚刚开始使用libjingle编码GTALK聊天机器人。我遇到问题，让编译器找到XMPPPPUMP类称为XMPPCLIENT类。 XMPPClient由Libjingle在Talk/XMPP/XMPPCLIENT.H文件中提供，但是由于某种原因，它对我不起作用，最近令我沮丧。希望你们能够帮助我！

我正在使用libjingle-0.5.1，而我的G ++编译器版本为4.4.5。我的操作系统是Ubuntu 10.10，32位。

这是我试图编译我的代码的方式：

g++ -g -Werror -DPOSIX -DEXPAT_RELATIVE_PATH -DFEATURE_ENABLE_SSL -DHAVE_OPENSSL_SSL_H=1 -I../include -I../misc/libjingle-0.5.1 -I../misc/libjingle-0.5.1/talk/third_party/expat-2.0.1 -I../misc/libjingle-0.5.1/talk/third_party/srtp/include -L../lib -lpthread -lssl -o ../bin/gtalk_bot.bin ../obj/main.o /usr/local/lib/libglog.a ../misc/libjingle-0.5.1/talk/build/dbg/lib/libjingle.a ../misc/libjingle-0.5.1/talk/build/dbg/lib/libexpat.a ../misc/libjingle-0.5.1/talk/build/dbg/lib/libsrtp.a ../misc/libjingle-0.5.1/talk/build/dbg/lib/libxmpphelp.a

这是错误消息：

../misc/libjingle-0.5.1/talk/build/dbg/lib/libxmpphelp.a(xmpppump.o): In function `XmppPump::XmppPump(XmppPumpNotify*)':
xmpppump.cc:(.text._ZN8XmppPumpC2EP14XmppPumpNotify+0x6e): undefined reference to `buzz::XmppClient::XmppClient(talk_base::TaskParent*)'
../misc/libjingle-0.5.1/talk/build/dbg/lib/libxmpphelp.a(xmpppump.o): In function `XmppPump::XmppPump(XmppPumpNotify*)':
xmpppump.cc:(.text._ZN8XmppPumpC1EP14XmppPumpNotify+0x6e): undefined reference to `buzz::XmppClient::XmppClient(talk_base::TaskParent*)'
../misc/libjingle-0.5.1/talk/build/dbg/lib/libxmpphelp.a(xmpppump.o): In function `XmppPump::DoLogin(buzz::XmppClientSettings const&, buzz::AsyncSocket*, buzz::PreXmppAuth*)':
xmpppump.cc:(.text._ZN8XmppPump7DoLoginERKN4buzz18XmppClientSettingsEPNS0_11AsyncSocketEPNS0_11PreXmppAuthE+0xa9): undefined reference to `buzz::XmppClient::Connect(buzz::XmppClientSettings const&, std::basic_string, std::allocator > const&, buzz::AsyncSocket*, buzz::PreXmppAuth*)'
../misc/libjingle-0.5.1/talk/build/dbg/lib/libxmpphelp.a(xmpppump.o): In function `XmppPump::DoDisconnect()':
xmpppump.cc:(.text._ZN8XmppPump12DoDisconnectEv+0x25): undefined reference to `buzz::XmppClient::Disconnect()'
../misc/libjingle-0.5.1/talk/build/dbg/lib/libxmpphelp.a(xmpppump.o): In function `XmppPump::SendStanza(buzz::XmlElement const*)':
xmpppump.cc:(.text._ZN8XmppPump10SendStanzaEPKN4buzz10XmlElementE+0x2c): undefined reference to `buzz::XmppClient::SendStanza(buzz::XmlElement const*)'
collect2: ld returned 1 exit status
make: *** [../bin/gtalk_bot.bin] Error 1

这是我的代码：

#include <string>
#include <iostream>
#include <assert.h>
#include <getopt.h>
#include "glog/logging.h"
#include "talk/base/thread.h"
#include "talk/base/physicalsocketserver.h"
#include "talk/base/socketaddress.h"
#include "talk/base/cryptstring.h"
#include "talk/base/ssladapter.h"
#include "talk/xmpp/jid.h"
#include "talk/xmpp/xmppclient.h"
#include "talk/xmpp/xmppclientsettings.h"
#include "talk/examples/login/xmpppump.h"
#include "talk/examples/login/xmppauth.h"
#include "talk/examples/login/xmppthread.h"

using namespace std;

int readCommandLineArguments(int argc, char **argv);
int getUserName(string *username);
int getPassword(string *password);

buzz::Jid serverJid;
string username;
string password;
string auth_cookie;


int main(int argc, char **argv){
 int status = 0;

 // use: GLOG_log_dir="log" ./gtalk_bot.bin
 google::InitGoogleLogging(argv[0]);

 talk_base::PhysicalSocketServer pss;
 talk_base::AutoThread main_thread(&pss);

 // Get the information we'll need to sign in
 buzz::Jid jid;
 talk_base::InsecureCryptStringImpl pass;
 buzz::XmppClientSettings xcs;
 XmppPump pump;
 //XmppHandler xhandler;

 status = readCommandLineArguments(argc, argv);

 if(username.empty()){
  // get the user name if there's none in the command line argument
  status = getUserName(&username);
 }
 jid = buzz::Jid(username);
 assert(jid.IsValid() || jid.node() != "");

 if(!username.empty() && password.empty()){
  // If username is provided, but the password isn't, ask for one.
  status = getPassword(&password);
 }
 pass.password() = password;

 // Turn on SSL
 talk_base::InitializeSSL();

 xcs.set_user(jid.node());
 xcs.set_resource("one_chat_bot"); //TODO: need to investigate what this is
 xcs.set_host(jid.domain());
 xcs.set_use_tls(true);
 xcs.set_pass(talk_base::CryptString(pass));
 xcs.set_server(talk_base::SocketAddress("talk.google.com", 5222));

 //xhandler.DoLogin(xcs, new XmppSocket(true), NULL);
// xhandler.DoLogin(xcs, new XmppSocket(true), NULL);
 main_thread.Run();
// xhandler.DoDisconnect();

 //delete objects here

 return 0;
}



int readCommandLineArguments(int argc, char **argv){
 int input = 0;
 int rc = 0;
 int options_index = 0;

 static struct option long_options[] = {
  {"username", required_argument, 0, 'u'},
  {"password", required_argument, 0, 'p'},
  {0, 0, 0, 0}
 };

 while((input = getopt_long(argc, argv, "u:p:", long_options, &options_index)) != -1 && rc == 0){
  switch(input){
   case 'u':
    if(optarg){
     username = optarg;
    }
    break;
   case 'p':
    if(optarg){
     password = optarg;
    }
    break;
   case '?':
   default:
    rc = 1;
    break;
  }
 }

 return rc;
}



int getUserName(string *username){
 int rc = 0;

 cout << "google username: ";
 cin >> *username;

 return rc;
}


int getPassword(string *password){
 int rc = 0;

 cout << "password: ";
 cin >> *password;

 return rc;
}

这是我的目录结构。有三个libjingle文件夹，因为我正在尝试并尝试不同的事情，以查看是否可以解决汇编问题。 Libjingle文件夹没有变化，除了Expat-2.0.1/和SRTP/文件夹被复制到libjingle/ talk/ talk/ thix_party/文件夹。 libjingle-0.5.1/目录结构几乎与位于此处的SVN TRUNK相同：

http://code.google.com/p/libjingle/source/browse/trunk/#trunk

除了我的libjingle-0.5.1文件夹已经编译。

gtalk_bot$ ls *
bin:
log

include:

lib:

misc:
expat-2.0.1         glog-0.3.1.tar.gz  libjingle-0.4.0.tar.gz  libjingle-0.5.1      libjingle-0.5.tar.gz  srtp            swtoolkit
expat-2.0.1.tar.gz  libjingle-0.4.0    libjingle-0.5           libjingle-0.5.1.zip  scons-2.0.1.tar.gz    srtp-1.4.4.tgz  swtoolkit.0.9.1.zip

obj:
main.o  XmppHandler.o

src:
main.cc  main.o  Makefile  SConstruct  XmppHandler.cc  XmppHandler.h  XmppSocket.cc  XmppSocket.h

test:

这是Libjingle的构建目录：

gtalk_bot/misc/libjingle-0.5.1/talk/build/dbg$ ls *
lib:
libexpat.a  libjingle.a  libsrtp.a  libxmpphelp.a

obj:
base  call  examples  libexpat.a  libjingle.a  libsrtp.a  libxmpphelp.a  login  p2p  relayserver  session  stunserver  third_party  xmllite  xmpp

staging:
call  login  relayserver  stunserver

Answer 1

非常感谢Libjingle团队解决了我的问题。显然，静态库排序很重要。我只需要重新订购库：

libxmpphelp.a  libjingle.a libexpat.a libsrtp.a

请参阅“ Man Ld”：

链接器将在命令行上指定的位置仅搜索一次存档。如果存档定义一个符号，该符号在命令行上的存档之前出现的某些对象中未定义，则链接器将包含存档中的适当文件。但是，在命令行稍后出现的对象中的一个未定义符号不会导致链接器再次搜索存档。

现在，我可以编译我的应用程序。希望其他人会发现这有用。