Re: [boost] [filesystem] Can't compile on Tru64/gcc

From: John Maddock (john_at_[hidden])
Date: 2005-04-04 06:24:26

> The code in question is:
>
> #     if defined(_POSIX_THREAD_SAFE_FUNCTIONS) \
>       && defined(_SC_THREAD_SAFE_FUNCTIONS) \
>       && _POSIX_THREAD_SAFE_FUNCTIONS >= 0
>       if ( ::sysconf( _SC_THREAD_SAFE_FUNCTIONS ) >= 0 )
>         { return ::readdir_r( dirp, entry, result ); }
> #     endif
>
> Seems like _POSIX_THREAD_SAFE_FUNCTIONS but doesn't expand to anything.

That's a common problem with the POSIX feature test macros, the workaround 
is to use :

(_POSIX_THREAD_SAFE_FUNCTIONS+0 >= 0)

John.