[Boost-users] Problem with shared version of Boost.Regex library

From: ancode tran (ancodecpp_at_[hidden])
Date: 2007-11-12 13:03:08

  Hi all,
  I compiled a shared version (DLL) of Boost.Regex on Windows2000 Pro with gcc 3.4.5, mingw 3.13, STLport 5.1.4 and IBM's ICU 3.8. Details are as below:
   
  
  1. Open file "boost/config/platform/win32.hpp", change the line:
  #if !defined(__GNUC__) && !defined(BOOST_HAS_DECLSPEC)
  to:
  #if (!defined(__GNUC__) || defined(__MINGW32__)) && !defined(BOOST_HAS_DECLSPEC)
   
  I did this because mingw (at least with my version) supports both __declspec(dllexport) and __declspec(dllimport), and __GNUC__ is also defined.
   
  2. Open file "boost/regex/user.hpp" and uncomment 2 lines: "#define BOOST_HAS_DLL_RUNTIME 1" and "#define BOOST_REGEX_DYN_LINK 1".
   
  3. Edit file "libs/regex/build/gcc-shared.mak" and then use it to build Boost.Regex from MSYS shell with GNU Make.
   
  
  After the building process completed, I wrote a small program to test the output. It ran nicely but I got the following warning when linking against Boost.Regex:
   
  
  ../../include/boost/regex/pending/static_mutex.hpp:116: warning: 'bool boost::scoped_static_mutex_lock::locked() const' defined locally after being referenced with dllimport linkage
   
  It seems my compiler doesn't like to see "inline" and "__declspec(dllimport)" in the same place. So I have some questions:
  1. Should I remove "inline" and rebuild Boost.Regex to skip this warning ? 
  2. Should I continue to use my own shared version of Boost.Regex ? May it result in such thing like undefined behavior, especially in multithread world ?
   
  Can anyone give me a hint, please ? Thanks in advance.
  
  P.S:
  STLport and ICU were built as shared libraries, I therefore dont like a static build of Boost.Regex at all. 

       
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