_sprintf already defined

[marksarnold]

I have a problem with VC++ 6:
I have a static library project and an application project that I want to use the library in.
The library is called loglib, the application logtest.

Compiling the library in its own workspace works fine.
Compiling the app in the app-workspace made problems because it didnt find the library's lib file. So I did "Insert Project into Workspace..." and added the lib project. Then I added the lib src path into the include path and added the dependency in "Project"->Dependencies".

This worked for a while, until I tried using printf in the library's code. This gives me:
msvcrtd.lib(MSVCRTD.dll) : error LNK2005: _sprintf already defined in libcd.lib(sprintf.obj)

I have no clue how to fix this...

The app has been already using printf, so that might be the problem, but I dont know how to get this to work...
Just in case this has anything to do withit, I also get 3 warnings form the linker... Here is the entire output:

Linking...
msvcrtd.lib(MSVCRTD.dll) : error LNK2005: _sprintf already defined in libcd.lib(sprintf.obj)
LINK : warning LNK4098: defaultlib "mfc42d.lib" conflicts with use of other libs; use /NODEFAULTLIB:library
LINK : warning LNK4098: defaultlib "mfcs42d.lib" conflicts with use of other libs; use /NODEFAULTLIB:library
LINK : warning LNK4098: defaultlib "msvcrtd.lib" conflicts with use of other libs; use /NODEFAULTLIB:library
Debug/LibTestStatic.exe : fatal error LNK1169: one or more multiply defined symbols found
Error executing link.exe.

Any ideas?

Thanks a lot,

MARK

 

[Salem]

What sort of error messages do you get if you don't include "libcd.lib".

It seems to me you grabbed a libc just to make some other error message go away (rather than fixing the actual problem).

> _sprintf already defined in libcd.lib(sprintf.obj)
Why do I get the feeling that this is someone elses "libc", which contains most of what Microsoft's msvcrtd.lib also contains (being as it is a "libc" for VC++).

--

 

[marksarnold]

Actually, the settings are the default settings the way VC++ created the project. I have done Java for the last 7 years, so I am totally out of shape in C++ world... I used to do c++, but never really went into this Windows and VC++ mess.
That's why I did not change anything in these settings - I was hoping VC++ would do the right thing for me...
I guess it might have to do with the fact that I am throwing 2 different kinds of projects into the same workspace...
Not sure how this should usually be done...

I noticed that the two projects use different /Mx settings - one uses MLd, the MDd, and it seems that's what causes the problem. If I change this to be the same for the two, the error goes away, but I get other errors (undefined symbols) - no matter if I use MDd, MLd, or MTd.

Is there a better way to make one project use the other's library without actually importing both of them in the same workspace? Would that fix my problem?
Thanks,

MARK