Hi All,
I thought I'd start a new thread for this new problem; please see
the old thread at
Building a PJSIP project: VC++ 2008 can't find isalnum, isalpha, etc.
I no longer get any compiler errors (in this custom project of my
own using only code cribbed from simpleua.c so far)
(after also cleaning up a couple of "undefined identifier" errors).
There was no path ending with ...\pjlib\include\pj\lib ,
so all I did was remove the path ending with ...\pjlib\include\pj
from my Include dirs. in Tools - Options - Projects and Solutions -
VC++ Directories - Include files.
However, now I'm on to Linker errors...
Now I get the following build output: (my question continues at bottom):
---------------------------------------------------------
------ Build started: Project: PJS080612_02, Configuration: Debug Win32 ------
Compiling...
PJS080612_02.cpp
Linking...
PJS080612_02.obj : error LNK2019: unresolved external symbol
_pjmedia_transport_udp_create referenced in function _wmain
PJS080612_02.obj : error LNK2019: unresolved external symbol
_pjmedia_endpt_create referenced in function _wmain
PJS080612_02.obj : error LNK2019: unresolved external symbol
_pjsip_endpt_get_ioqueue referenced in function _wmain
PJS080612_02.obj : error LNK2019: unresolved external symbol
_pjsip_endpt_create referenced in function _wmain
PJS080612_02.obj : error LNK2019: unresolved external symbol
_pj_gethostname referenced in function _wmain
PJS080612_02.obj : error LNK2019: unresolved external symbol
_pj_caching_pool_init referenced in function _wmain
PJS080612_02.obj : error LNK2001: unresolved external symbol
_pj_pool_factory_default_policy
PJS080612_02.obj : error LNK2019: unresolved external symbol
_pjlib_util_init referenced in function _wmain
PJS080612_02.obj : error LNK2019: unresolved external symbol _pj_init
referenced in function _wmain
PJS080612_02.obj : error LNK2019: unresolved external symbol _pj_log_3
referenced in function "int __cdecl app_perror(char const *,char const
*,int)" (?app_perror@@YAHPBD0H at Z)
PJS080612_02.obj : error LNK2019: unresolved external symbol
_pj_log_get_level referenced in function "int __cdecl app_perror(char
const *,char const *,int)" (?app_perror@@YAHPBD0H at Z)
PJS080612_02.obj : error LNK2019: unresolved external symbol
_pj_strerror referenced in function "int __cdecl app_perror(char const
*,char const *,int)" (?app_perror@@YAHPBD0H at Z)
C:\SomeLibs\pjproject-0.8.0\Debug\PJS080612_02.exe : fatal error
LNK1120: 12 unresolved externals
Build log was saved at
"file://c:\SomeLibs\pjproject-0.8.0\PJS080612_02\Debug\BuildLog.htm"
PJS080612_02 - 13 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
---------------------------------------------------------
This is odd, since I built the entire pjproject-0.8.0 itself with no problems,
and included the paths to all the libs in Tools - Options - Projects
and Solutions -
VC++ Directories - Library files:
C:\SomeLibs\pjproject-0.8.0\pjsip\lib
C:\SomeLibs\pjproject-0.8.0\pjmedia\lib
C:\SomeLibs\pjproject-0.8.0\pjlib-util\lib
C:\SomeLibs\pjproject-0.8.0\pjlib\lib
C:\SomeLibs\pjproject-0.8.0\pjnath\lib
Here is my complete source listing. I have no other source files in
my project: (my message and question continues below after a matching
line of dashes):
---------------------------------------------------------
// PJS080612_02.cpp
//
// #define PJ_HAS_CTYPE_H 0 // try 0 if it doesn't work
#include "stdafx.h"
// #include <ctype.h> // attempt for isalnum()
// #include <tchar.h> // attempt for isalnum()
// #include <locale> // attempt for isalnum()
// #include <stdlib>
#include <iostream>
#pragma comment(lib,"ws2_32.lib")
// ------------------------------- PJSIP Stuff -------------------------------
// see ex. in pjproject-0.8.0\pjsip-apps\src\samples\ simpleua.c -- these are
// all the PJSIP headers according to that example:
#include <pjsip.h>
#include <pjmedia.h>
#include <pjmedia-codec.h>
#include <pjsip_ua.h>
#include <pjsip_simple.h>
#include <pjlib-util.h>
#include <pjlib.h>
/* For logging purpose. */
#define THIS_FILE "PJSIP_demo.cpp"
static pjsip_endpoint *g_endpt; /* SIP endpoint. */
// This looks necessary to create the g_med_endpt
static pj_caching_pool cp; /* Global pool factory. */
static pjmedia_endpt *g_med_endpt; /* Media endpoint. */
static pjmedia_transport *g_med_transport;/* Media stream transport */
// ------------------------------- PJSIP Stuff -------------------------------
using namespace std;
// Cribbed from util.h in pjproject-0.8.0\pjsip-apps\src\samples
static int app_perror( const char *sender, const char *title,
pj_status_t status)
{
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(status, errmsg, sizeof(errmsg));
PJ_LOG(3,(sender, "%s: %s [code=%d]", title, errmsg, status));
return 1;
}
int _tmain(int argc, _TCHAR* argv[])
{
// Port and socket stuff
int intRTPPort = 0;
// General decls
char ch = 0;
// PJSIP decls
// see ex. in pjproject-0.8.0\pjsip-apps\src\samples\ simpleua.c
// see also global variables here above "main()" (or "_tmain()" whatever).
pj_status_t status;
// ---------------- Beginning of code for this program -----------------
// PJSIP stuff --------------------------------------------------------
// see ex. in pjproject-0.8.0\pjsip-apps\src\samples\ simpleua.c
/* Must init PJLIB first: */
status = pj_init();
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
// see pjproject-0.8.0\pjlib\include\pj\ assert.h
/* Then init PJLIB-UTIL: */
status = pjlib_util_init();
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Must create a pool factory before we can allocate any memory. */
pj_caching_pool_init(&cp, &pj_pool_factory_default_policy, 0);
// pj_pool_factory_default_policy decl. in
// pjproject-0.8.0\pjlib\include\pj\ pool.h
// Create global endpoint
const pj_str_t *hostname;
const char *endpt_name;
// Endpoint MUST be assigned a globally unique name. The name will be
// used as the hostname in Warning header.
// For this implementation, we'll use hostname for simplicity
hostname = pj_gethostname();
endpt_name = hostname->ptr;
// Create the endpoint:
status = pjsip_endpt_create(&cp.factory, endpt_name, &g_endpt);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
// end of global endpoint creation code
// This is to help create media transport used to send/receive RTP/RTCP
// socket. See pjmedia_transport_udp_create, below.
// see ex. in pjproject-0.8.0\pjsip-apps\src\samples\ simpleua.c
// Initialize media endpoint -- This will implicitly
// initialize PJMEDIA too.
// Not using threads; see bottom of
// http://trac.pjsip.org/repos/wiki/media-flow .
status = pjmedia_endpt_create(&cp.factory,
pjsip_endpt_get_ioqueue(g_endpt),
0, &g_med_endpt);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
std::cout << "PJSIP demo..." << std::endl;
// Create media transport used to send/receive RTP/RTCP socket.
// see ex. in pjproject-0.8.0\pjsip-apps\src\samples\ simpleua.c
// Here we actually create the media transport used to send/receive RTP/RTCP
// socket.
status = pjmedia_transport_udp_create(g_med_endpt, NULL, intRTPPort,
PJMEDIA_UDP_NO_SRC_ADDR_CHECKING,
&g_med_transport);
if (status != PJ_SUCCESS)
{
app_perror(THIS_FILE, "Unable to create media transport", status);
return 1;
}
std::cout<<std::endl<<"Press any key to continue >";
std::cin.get(ch);
std::cin.get(ch);
return 0;
} // main()
---------------------------------------------------------
The only thing I did was use the information at
http://www.pjsip.org/using.htm#using; that is, I
didn't need any other suggestions that were posted
to this thread (as helpful as they seemed), as I
recall, and as can be seen from some of the
commented-out lines in my source.
Given all of this, how can I be getting these link
errors?
I'm pretty sure I followed all of the directions, but
I'll go over them all again, especially at
http://www.pjsip.org/using.htm#using .
Best regards,
George
