Linker problems - GameCreators Forum

Author

Message

Michael P

18

Years of Service

User Offline

Joined: 6th Mar 2006

Location: London (UK)

Posted: 26th Mar 2008 16:03

Link

I'm having some problems getting a plugin (winsock: http://forum.thegamecreators.com/?m=forum_view&t=109593&b=22) to work in visual studio C++ 2008.

Firstly, will that plugin work with the latest version of DGDK and visual studio?

I understand from the thread that the project properties need to be set to Multi-threaded Debug (/MTd) and that the library needs to be included. I have done both of those steps. Now, what libraries to exclude? According to the MSDN library I need to do the following:

-Changed 'Project settings | Linker | Input | Ignore Specific Library' to 'libc.lib, libcmt.lib, msvcrt.lib, libcd.lib, msvcrtd.lib' (see link 1)
-Changed 'Project settings | Linker | System | Sub System' to 'Windows (/SUBSYSTEM:WINDOWS)'. (see link 2)

Link 1:
http://msdn2.microsoft.com/en-us/library/aa267384(VS.60).aspx

Link 2:
http://msdn2.microsoft.com/en-us/library/aa267384(VS.60).aspx

I did all of that, and still had linker errors. Fortunately, I randomly attempted Multi-threaded Debug (/MTd) whilst excluding the libraries: libc.lib, msvcrt.lib, libcd.lib, libcmtd.lib, msvcrtd.lib which are supposed to be excluded for Multithreaded (libcmt.lib); without debug. The programs compiled but with some warnings. Sadly, after trying to use strings fatal linker errors returned and the following debug appears when trying to compile:

1>------ Build started: Project: Server Test, Configuration: Debug Win32 ------
1>Compiling...
1>project.cpp
1>Linking...
1>libcpmtd.lib(xdebug.obj) : warning LNK4098: defaultlib 'libcmt.lib' conflicts with use of other libs; use /NODEFAULTLIB:library
1>libcpmtd.lib(xdebug.obj) : error LNK2019: unresolved external symbol __malloc_dbg referenced in function "void * __cdecl operator new(unsigned int,struct std::_DebugHeapTag_t const &,char *,int)" (??2@YAPAXIABU_DebugHeapTag_t@std@@PADH@Z)
1>libcpmtd.lib(xdebug.obj) : error LNK2019: unresolved external symbol __free_dbg referenced in function "void __cdecl operator delete(void *,struct std::_DebugHeapTag_t const &,char *,int)" (??3@YAXPAXABU_DebugHeapTag_t@std@@PADH@Z)
1>libcpmtd.lib(stdthrow.obj) : error LNK2019: unresolved external symbol __CrtDbgReportW referenced in function "void __cdecl std::_Debug_message(wchar_t const *,wchar_t const *,unsigned int)" (?_Debug_message@std@@YAXPB_W0I@Z)
1>C:\Documents and Settings\Michael Pryor\Desktop\Work Related\Programming 08\Tests\Server Test\Debug\Server Test.exe : fatal error LNK1120: 3 unresolved externals
1>Build log was saved at "file://c:\Documents and Settings\Michael Pryor\Desktop\Work Related\Programming 08\Tests\Server Test\test project\Debug\BuildLog.htm"
1>Server Test - 4 error(s), 1 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

+ Code Snippet

1>------ Build started: Project: Server Test, Configuration: Debug Win32 ------
1>Compiling...
1>project.cpp
1>Linking...
1>libcpmtd.lib(xdebug.obj) : warning LNK4098: defaultlib 'libcmt.lib' conflicts with use of other libs; use /NODEFAULTLIB:library
1>libcpmtd.lib(xdebug.obj) : error LNK2019: unresolved external symbol __malloc_dbg referenced in function "void * __cdecl operator new(unsigned int,struct std::_DebugHeapTag_t const &,char *,int)" (??2@YAPAXIABU_DebugHeapTag_t@std@@PADH@Z)
1>libcpmtd.lib(xdebug.obj) : error LNK2019: unresolved external symbol __free_dbg referenced in function "void __cdecl operator delete(void *,struct std::_DebugHeapTag_t const &,char *,int)" (??3@YAXPAXABU_DebugHeapTag_t@std@@PADH@Z)
1>libcpmtd.lib(stdthrow.obj) : error LNK2019: unresolved external symbol __CrtDbgReportW referenced in function "void __cdecl std::_Debug_message(wchar_t const *,wchar_t const *,unsigned int)" (?_Debug_message@std@@YAXPB_W0I@Z)
1>C:\Documents and Settings\Michael Pryor\Desktop\Work Related\Programming 08\Tests\Server Test\Debug\Server Test.exe : fatal error LNK1120: 3 unresolved externals
1>Build log was saved at "file://c:\Documents and Settings\Michael Pryor\Desktop\Work Related\Programming 08\Tests\Server Test\test project\Debug\BuildLog.htm"
1>Server Test - 4 error(s), 1 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

That's about it; where am I going wrong?

Back to top

Profile PM Email

Benjamin

21

Years of Service

User Offline

Joined: 24th Nov 2002

Location: France

Posted: 26th Mar 2008 17:00

Link

I'd suggest you use Winsock directly, seeing as it's available to you. Link with ws2_32.lib and include winsock2.h.

Winsock Reference

Multisync - TCP Server/Client Multiplayer Plugin (DBP/DBCe)

Back to top

Profile PM Email

Michael P

18

Years of Service

User Offline

Joined: 6th Mar 2006

Location: London (UK)

Posted: 26th Mar 2008 17:15

Link

Jason said the same thing... tomorrow I'll have a go

Back to top

Profile PM Email

Barnski

18

Years of Service

User Offline

Joined: 26th Jan 2006

Location: Switzerland, Zurich

Posted: 27th Mar 2008 13:17 Edited at: 27th Mar 2008 13:25

Link

Michael P,

I just tried with VS2008 and the DarkGDK available from my Order History (with the beta update) and it worked. I did the following...

First, make sure GDK works:
1. create empty Win32 (visual c++) project
2. add new main.cpp file
3. copy example GDK code into main.cpp
4. Goto Tools->Options->Projects and Solutions->VC++ directories
5. make sure you set the include dir of GDK and the !DEBUG! directory of the libs (VS8Debug) (and the DirectX folders)
6. goto project settings (right click on your projectnode->properties)
7. set it to Multithreaded Debug (NOT dll)
6. compile and run the project (it should work without excluding any libs)

Add winsock library:
1. extract my winsock lib-pack to a folder (I refer to it as X)
2. goto project settings (right click on your projectnode->properties)
3. add X to the include directory (for the winsock_plugin.h)
4. add X to the lib directory (for the Barnski'sWinsockPlugin_debug.lib)
5. add "Barnski'sWinsockPlugin_debug.lib" to the additional libraries section in the Linker node
6. compile and run the project (it should work without excluding any libs)

This worked for me. It did give a lot of warnings about a missing Pd80 file for the GDK libs, but nevermind. And the line a lib could conflict with others can also be ignored (as long as it works).

Good luck to you whatever you decide to do!

edit: Thats the code I used to test it with (with strings):

+ Code Snippet

#include "DarkGDK.h"
#include "winsock_plugin.h"
#include <string>

void DarkGDK ( void )
{ 
 dbSyncOn ( );
 ws::make();

 std::string text = "hello world!";
 while ( LoopGDK ( ) )
 {
	dbPrint((LPSTR)text.c_str());
	dbSync ( );
 }
 ws::clean_up();
}

My DBPro Plugins Website

Back to top

Profile PM Email Website

Sorry your browser is not supported!

Dark GDK / Linker problems