Re: linker error LNK2001: unresolved external symbol in VS2008 when building simple example

From:

David Wilkinson <no-reply@effisols.com>

Newsgroups:

microsoft.public.vc.ide_general

Date:

Thu, 30 Oct 2008 08:17:22 -0400

Message-ID:

<OjZF2loOJHA.3748@TK2MSFTNGP04.phx.gbl>

google@2008.autoera.pl wrote:

Thanks for your answer. It's very nice there are people like you
willing to help.
As to your proposition. When I put the lib name in Linker/Input/
Additional Dependencies I get the following errors

1>msvcprt.lib(MSVCP90.dll) : error LNK2005: "protected: char const *
__thiscall std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char> >::_Myptr(void)const " (?_Myptr@?$basic_string@DU?
$char_traits@D@std@@V?$allocator@D@2@@std@@IBEPBDXZ) already defined
in curlpp.lib(cURLpp.obj)

1>LIBCMTD.lib(dbghook.obj) : error LNK2005: __crt_debugger_hook
already defined in MSVCRT.lib(MSVCR90.dll)

What should I do to get rid of these errors?
By the way; why putting the path to the lib directory with .lib files
is not enough? Shouldn't linker search all .lib files in this
directory and find what it needs?

Piotr:

It seems that your static library and executable are built with different CRT
settings. One is /MD (dynamic) and the other is /MT (static).

--
David Wilkinson
Visual C++ MVP