Re: error LNK2005: public: int __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::compare(char const )const (compare basic_string char_traits std allocator std already defined

From:

"Alex Blekhman" <tkfx.REMOVE@yahoo.com>

Newsgroups:

microsoft.public.vc.language

Date:

Sun, 17 Feb 2008 15:10:01 +0200

Message-ID:

<uPpEpZWcIHA.3400@TK2MSFTNGP03.phx.gbl>

"mathieu" wrote:

It seems that you're mixing static and dynamic runtime
libraries.
Ensure that all parts of your project use the same flavor of
runtime libraries.

Hi Alex,

Here is the set of flags I am using:

"/DWIN32 /D_WINDOWS /W3 /Zm1000 /GX /GR /MT /O2 /Ob2 /D NDEBUG"

I cannot use /MD since the free Toolkit 2003 does not have a
MSVCRT.lib.

Does this still looks right ?

There is nothing wrong with the command line. However, you need to
ensure that all files in your project are compiled with the same
CRT settings. Also, any external LIB that you link with must use
the same CRT.

In your project gdcmCommonTests.exe is linked with gdcmCommon.lib
(which is actually import library for gdcmCommon.dll) and both of
them try to share `std::basic_string' instances. It can be done
only if both EXE and DLL link dynamically with CRT. You have two
options:

1. Link everything dynamically with CRT.
2. Don't share CRT/Standard C++ objects between modules.

Alex