Subject: Re: [boost] [thread] Can't use boost/thread/mutex.hpp without boost_system
From: Vicente J. Botet Escriba (vicente.botet_at_[hidden])
Date: 2012-01-22 08:01:25
Le 22/01/12 13:41, Mathias Gaunard a écrit :
> On 01/22/2012 12:38 AM, Vicente J. Botet Escriba wrote:
>> Le 22/01/12 00:23, Mathias Gaunard a écrit :
>>> On 01/21/2012 11:29 PM, Vicente J. Botet Escriba wrote:
>>>
>>>> Ihave found that a little patch to Boost.System could make it
>>>> header-only. It seems that Beman has already tried it, but there are
>>>> some errors. Here it is the patch
>>>>
>>>> device3-1:trunk viboes$ svn diff boost/system libs/system
>>>> Index: boost/system/error_code.hpp
>>>> ===================================================================
>>>> --- boost/system/error_code.hpp (revision 76354)
>>>> +++ boost/system/error_code.hpp (working copy)
>>>> @@ -504,7 +504,7 @@
>>>>
>>>> #include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
>>>>
>>>> -# ifdef BOOST_ERROR_CODE_HEADER_ONLY
>>>> +# ifdef BOOST_SYSTEM_INLINED
>>>> # include <boost/../libs/system/src/error_code.cpp>
>>>> # endif
>>>
>>> Doesn't that still enable autolink with MSVC?
>>>
>> I don't think so. I could be missing something, could explain why do you
>> think that?
>
> <boost/system/config.hpp> includes <boost/config/auto_link.hpp>
> regardless or whether BOOST_SYSTEM_INLINED is defined or not.
>
>
The code I can see contains
#ifdef BOOST_SYSTEM_INLINED
#define BOOST_SYSTEM_INLINE inline
#define BOOST_SYSTEM_DECL
#else
#define BOOST_SYSTEM_INLINE
...
//
// And include the header that does the work:
//
#include <boost/config/auto_link.hpp>
#endif // auto-linking disabled
#endif // BOOST_SYSTEM_INLINED
The inclusion of boost/config/auto_link.hpp is on the else part, so
included only when Boost.System will not be inlined.
Vicente