how to compile pcp fileshare in libjingle - c++

Question

okay, i'm trying to compile the fileshare example called 'pcp' using the following command
wolfgang#den-pc:~/tejesh/libjingle-0.6.14/programs$ g++ -g -Wall -DPOSIX
-DEXPAT_RELATIVE_PATH -DFEATURE_ENABLE_SSL -DHAVE_OPENSSL_SSL_H=1 -I ../ pcp_main.cc
../talk/build/dbg/lib/libxmpphelp.a ../talk/build/dbg/lib/libjingle.a ../talk/build
/dbg/lib/libexpat.a ../talk/build/dbg/lib/libsrtp.a -lpthread -lssl
And i get the following 'typeinfo' error...
pcp_main.cc: In member function ‘virtual void
CustomXmppPump::OnStateChange(buzz::XmppEngine::State)’:
pcp_main.cc:348:12: warning: enumeration value ‘STATE_NONE’ not handled in switch
[-Wswitch]
/tmp/ccVe8JUg.o:(.rodata._ZTI14CustomXmppPump[typeinfo for CustomXmppPump]+0x18):
undefined reference to `typeinfo for XmppPump'
/tmp/ccVe8JUg.o:(.rodata._ZTIN7cricket18SessionManagerTaskE[typeinfo for
cricket::SessionManagerTask]+0x8): undefined reference to `typeinfo for buzz::XmppTask'
/tmp/ccVe8JUg.o:(.rodata._ZTIN7cricket15SessionSendTaskE[typeinfo for
cricket::SessionSendTask]+0x8): undefined reference to `typeinfo for buzz::XmppTask'
/tmp/ccVe8JUg.o:(.rodata._ZTI17AutoPortAllocator[typeinfo for AutoPortAllocator]+0x8):
undefined reference to `typeinfo for cricket::HttpPortAllocator'
collect2: ld returned 1 exit status
Anybody have some idea on this issue?

Answer 1

If you compile with gyp, you can change trunk/talk/libjingle_examples.gyp:
# target pcp
{
'target_name': 'pcp',
'type': 'executable',
'dependencies': [
'libjingle_xmpphelp',
'libjingle.gyp:libjingle',
'libjingle.gyp:libjingle_p2p',
],
'sources': [
'examples/pcp/pcp_main.cc',
],
}, # target pcp
run gclient runhooks again and make.

Answer 2

This error may be caused by some virtual method not having a definition - i.e. you have declared it but you have not defined its body.
Probably you did not include some .c/.cpp file(s) in the compilation/linking?

Answer 3

Did manage to compile pcp succesfully by scons,......... in your talk/ directory append the following line to 'libjingle.scons'
talk.App(env, name = "pcp",
posix_libs = [
"crypto",
"ssl",
],
srcs = [
"examples/pcp/pcp_main.cc",
],
libs = [
"jingle",
"expat",
"srtp",
"xmpphelp",
],
)
And then build it using instructions from the README of libjingle.. pcp binary will be built in your /talk/build/dbg/staging/ directory..