c++ - libjingle's XmppPump compilation problem -

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i started coding gtalk chat bot using libjingle. i'm having problem getting compiler find xmppclient class called xmpppump class. xmppclient provided libjingle in talk/xmpp/xmppclient.h file, reason it's not working me , has been frustrating me lately. guys able me out!

i'm using libjingle-0.5.1 , g++ compiler version 4.4.5. os ubuntu 10.10, 32-bit.

here's how i'm trying compile code:

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

here's error message:

 ../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 `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 `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 `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 `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 `buzz::xmppclient::sendstanza(buzz::xmlelement const*)' collect2: ld returned 1 exit status make: *** [../bin/gtalk_bot.bin] error 1

and here's code:

#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);   // information we'll need sign in  buzz::jid jid;  talk_base::insecurecryptstringimpl pass;  buzz::xmppclientsettings xcs;  xmpppump pump;  //xmpphandler xhandler;   status = readcommandlinearguments(argc, argv);   if(username.empty()){   // user name if there's none in command line argument   status = getusername(&username);  }  jid = buzz::jid(username);  assert(jid.isvalid() || jid.node() != "");   if(!username.empty() && password.empty()){   // if username provided, password isn't, ask 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 investigate  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; }

here's directory structure. there 3 libjingle folders because experimenting , trying different things see if can resolve compilation problem. libjingle folders unchanged except expat-2.0.1/ , srtp/ folders copied libjingle/talk/third_party/ folder. libjingle-0.5.1/ directory structure pretty same svn trunk located here:

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

except libjingle-0.5.1 folder compiled. 

 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:

here's libjingle's build directory:

 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

many libjingle team solving problem. apparently, static library ordering important. had re-order libraries to:

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

see "man ld":

the linker search archive once, @ location specified on command line. if archive defines symbol undefined in object appeared before archive on command line, linker include appropriate file(s) archive. however, undefined symbol in object appearing later on command line not cause linker search archive again.

now, i'm able compile app. hope else find useful.


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