[boost] [noncopyable.hpp] small fix for Borland

From: Pavel Vozenilek (pavel_vozenilek_at_[hidden])
Date: 2004-01-01 12:56:31

Empty class in Borland C++ Builder has by default 8 bytes. These 8 bytes are
not removed by EBO and only increase descendants size.

boost::noncopyable is such class.

Could it be please changed to:

--------------
class noncopyable
{
#if (defined __BORLANDC__) && (__BORLANDC__ <= 0x564)
    char dummy; // BCB would use 8 bytes by default
#endif
 protected:
 ....
--------------

/Pavel