MSVC 6.0 WX 2.6.0 Cannot link samples

xaxero · Post by **xaxero** » Mon Apr 25, 2005 12:28 pm

Good morning,
I am converting from 2.4.2 to 2.6.0 I can compile my own stuff fine but get linker errors - 2 externals unresolved for wxApp. I( include every library in the /lib directory to no avail).

Trying to backtrack by loading the samples for analysis I get a huge project file list for every sample including it would seem all the wxWidgets source.

In the file list there are 3 groups the last of which is the sample in question. It would appear that the DSP files are somehow mixed up. I can compile the sample by compiling that group only but the linker fails trying to load wxcore26.lib that does not apear anywhere in the library lists.

I think something went badly wrong with my install. Rolled everything back to 2.4.2 so I can work however I would like to move forward. Has anyone else experienced these problems.

Thank you for any insight.

Jonathan

ABX · Post by **ABX** » Mon Apr 25, 2005 12:31 pm

xaxero wrote:I am converting from 2.4.2 to 2.6.0 I can compile my own stuff fine but get linker errors - 2 externals unresolved for wxApp.

Quote, please.

ABX

xaxero · Post by **xaxero** » Mon Apr 25, 2005 12:44 pm

INK : warning LNK4098: defaultlib "LIBC" conflicts with use of other libs; use /NODEFAULTLIB:library
WXWindPlotApp.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall wxAppConsole::HandleEvent(class wxEvtHandler *,void (__thiscall wxEvtHandler::*)(class wxEvent &),class wxEvent &)const " (?HandleEvent@wxAppConsole@@UBEX
PAVwxEvtHandler@@P82@AEXAAVwxEvent@@@Z1@Z)
WXWindPlotApp.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall wxApp::OnExceptionInMainLoop(void)" (?OnExceptionInMainLoop@wxApp@@UAE_NXZ)
cnavw.exe : fatal error LNK1120: 2 unresolved externals

ABX · Post by **ABX** » Mon Apr 25, 2005 1:03 pm

xaxero wrote:INK : warning LNK4098: defaultlib "LIBC" conflicts with use of other libs; use /NODEFAULTLIB:library
WXWindPlotApp.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall wxAppConsole::HandleEvent(class wxEvtHandler *,void (__thiscall wxEvtHandler::*)(class wxEvent &),class wxEvent &)const " (?HandleEvent@wxAppConsole@@UBEX
PAVwxEvtHandler@@P82@AEXAAVwxEvent@@@Z1@Z)
WXWindPlotApp.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall wxApp::OnExceptionInMainLoop(void)" (?OnExceptionInMainLoop@wxApp@@UAE_NXZ)
cnavw.exe : fatal error LNK1120: 2 unresolved externals

These members are holded within wxUSE_EXCEPTIONS flag. Are you sure library and your application are compiled with the same value of this flag? Perhaps there is some conflict from older wxWidgets install.

ABX

xaxero · Post by **xaxero** » Mon Apr 25, 2005 2:22 pm

That was the problem - Pulled exceptions out and I have clean excecution.

Thank you for the fast response.

el-512 · Post by **el-512** » Wed May 04, 2005 7:12 am

Hi,

I have the same problem, but have no clou, what you mean with "Pulled exceptions out and I have clean excecution".

I changed my wxInstallation from 2.4.2 to 2.6.0 (removed everything from the computer and installed the new version). I changed nothing in my VC++ 6. I did "complete compile" for the project (with event-handling, surfaces...). Then I get the exact linker errors like xaxero.

The linker list is:
winmm.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib comctl32.lib rpcrt4.lib wsock32.lib wxmsw.lib zlib.lib regex.lib png.lib jpeg.lib tiff.lib

Thank's for any help

el-512 · Post by **el-512** » Wed May 04, 2005 12:40 pm

Hi,

some more new data:
In project settings / C\C++ / Programming Language C++
I removed the flag
Activate Exception Handling

But now I get a compiler warning C4530 for all my cpp files. You can see the complete warning below (in German - sorry). Although I do NOT use the MFC it tells me, that this error happens in
visual_studio\vc98\include\xstring(525)

Any Ideas?

Thank's in advance

:\s2cfg\classes\c_isc_service_db\_db_abstract.cpp(179) : warning C4530: C++-Handler verwendet, aber Entladesemantik ist nicht aktiviert. Geben Sie -GX an.
c:\programme\develop\visual_studio\vc98\include\xstring(525) : warning C4530: C++-Handler verwendet, aber Entladesemantik ist nicht aktiviert. Geben Sie -GX an.
c:\programme\develop\visual_studio\vc98\include\xstring(521) : Bei der Kompilierung der Member-Funktion 'void __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::_Copy(unsigned int)' der Klassenvorla
ge

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MSVC 6.0 WX 2.6.0 Cannot link samples

MSVC 6.0 WX 2.6.0 Cannot link samples

Re: MSVC 6.0 WX 2.6.0 Cannot link samples