I have copied REGEX and other boost libs and defined my "DECL" macros 
to place before external synbols like so:

====================

#if defined(_MSVC) && defined(_DLL)
#  define PERSIST_HAS_DLL_RUNTIME
#endif

#if defined(PERSIST_HAS_DLL_RUNTIME)
#   if defined(PERSIST_IN_LIBRARY_SOURCE)
#       define PERSIST_DECL __declspec(dllexport)
#       define PERSIST_BUILD_DLL
#   else
#       define PERSIST_DECL __declspec(dllimport)
#  endif
#endif

#ifndef PERSIST_DECL
#  define PERSIST_DECL
#endif
====================


My problem is that I am building on gcc on windows (which ALSO needs 
_declspecs), so how do I do this:

#if defined(_MSVC) && defined(_DLL)
#  define PERSIST_HAS_DLL_RUNTIME
#endif

In the correct "boost-like" way so that it will correctly detect GCC on 
windows, and building a DLL?

Paul.

---------------------
Paul Hamilton
pHamtec P/L - Software Makers
http://www.phamtec.com/
mailto:paul@[...].com

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