Re: Link problem in VC6

From:

"Carl Daniel [VC++ MVP]" <cpdaniel_remove_this_and_nospam@mvps.org.nospam>

Newsgroups:

microsoft.public.vc.language

Date:

Thu, 17 Aug 2006 08:50:06 -0700

Message-ID:

<eGieQThwGHA.4032@TK2MSFTNGP04.phx.gbl>

"jim" <jim@discussions.microsoft.com> wrote in message
news:7DE786FF-87B2-458E-9419-411992CD44FD@microsoft.com...

Thank you -- Igor,

I try use /MD and then below errors are returning:

LIBCMTD.lib(tolower.obj) : error LNK2005: _tolower already defined in
MSVCRT.lib(MSVCRT.dll)
LIBCMTD.lib(dosmap.obj) : error LNK2005: __errno already defined in
MSVCRT.lib(MSVCRT.dll)
LIBCMTD.lib(crt0dat.obj) : error LNK2005: _exit already defined in
MSVCRT.lib(MSVCRT.dll)
.
.
.
What the problem could be? Thanks again for your help?

Still the same problem - you're linking a combination of libraries/objects
that have been compiled with different runtime library settings. Use
dumpbin /directives somelibrary.lib (or someobject.obj) to see the linker
directives embedded in the modules that you're linking. The output will
look something like this:

C:\Dev\Misc\cpp>dumpbin /directives templ0812.obj
Microsoft (R) COFF/PE Dumper Version 8.00.50727.42
Copyright (C) Microsoft Corporation. All rights reserved.

Dump of file templ0812.obj

File Type: COFF OBJECT

   Linker Directives
   -----------------
   /DEFAULTLIB:"libcpmt"
   /DEFAULTLIB:"LIBCMT"
   /DEFAULTLIB:"OLDNAMES"

Here you can see that this paricular module depends on libcpmt and libcmt,
so this code was compiled with /MT. Do the same thing on all of your
libraries and objects to find out which one(s) were built with incompatible
settings.

-cd