[Boost-users] boost serialization compilation and WCHAR

Hi all - I'm running into problems building the serialization library with gcc 4.1. I tracked it down to a change in libstdc++ for gcc 4.1 from the gcc 3.x libstdc++. I'm sure there's a bug, but I'm not sure if it is a boost bug, a libstdc++ bug, or a gcc 4.1 bug. boost_1_33_1/boost/config/stdlib/libstdcpp3.hpp says: #if !defined(_GLIBCPP_USE_WCHAR_T) && !defined(_GLIBCXX_USE_WCHAR_T) # define BOOST_NO_CWCHAR # define BOOST_NO_CWCTYPE # define BOOST_NO_STD_WSTRING # define BOOST_NO_STD_WSTREAMBUF #endif and indeed, with the 4.1 compiler, neither define is defined. For 4.1 in file /usr/lib/gcc/i686-pc-linux-gnu/4.1.0/include/g++-v4/i686-pc-linux-gnu/c++config.h I have /* Defined if vfwscanf exists. */ #define _GLIBCXX_HAVE_VFWSCANF 1 /* Defined if vswscanf exists. */ #define _GLIBCXX_HAVE_VSWSCANF 1 /* Defined if vwscanf exists. */ #define _GLIBCXX_HAVE_VWSCANF 1 /* Define to 1 if you have the header file. */ #define _GLIBCXX_HAVE_WCHAR_H 1 /* Defined if wcstof exists. */ #define _GLIBCXX_HAVE_WCSTOF 1 /* Define to 1 if you have the header file. */ #define _GLIBCXX_HAVE_WCTYPE_H 1 (no reference to USE_WCHAR_T) and in /usr/lib/gcc/i686-pc-linux-gnu/3.4.5/include/g++-v3/i686-pc-linux-gnu/bits/c++config.h I have // Define if code specialized for wchar_t should be used. #define _GLIBCXX_USE_WCHAR_T 1 my fix would be one of three things: 1) in c++config.h #define _GLIBCXX_USE_WCHAR_T 2) in libstdcpp3.hpp add a test for _GLIBCXX_HAVE_WCHAR_H: #if !defined(_GLIBCPP_USE_WCHAR_T) && !defined(_GLIBCXX_USE_WCHAR_T) && !defined(_GLIBCXX_HAVE_WCHAR_H) # define BOOST_NO_CWCHAR # define BOOST_NO_CWCTYPE # define BOOST_NO_STD_WSTRING # define BOOST_NO_STD_WSTREAMBUF #endif 3) somewhere else #ifdef _GLIBCXX_HAVE_WCHAR_H #define _GLIBCXX_USE_WCHAR_T #endif What do you guys think? Brian