Re: [Boost-users] Re: [regex] Unresolved external symbols under VC7.1w/dynamic linking

From: John Maddock (john_at_[hidden])
Date: 2005-03-17 08:39:05

> #define BOOST_DYN_LINK

OK, that's the problem: BOOST_DYN_LINK is an internal Boost macro that 
instructs the auto-linking code to link to a dll, but it doesn't tell the 
code to add __declspec(dllimport) where needed.  You should be defining one 
of:

BOOST_ALL_DYN_LINK:        make all Boost libs link as dll's.
BOOST_REGEX_DYN_LINK:  make regex only link as a dll.

> My project settings are:
> - Runtime Lib: Multithreaded-DLL (/MD)

Be careful not to mix /MD with /D_DEBUG, it confuses the auto-link code (not 
really a Boost issue, it affects any libray that's linked with #pragma 
comment).

HTH,

John.