[boost] [config] fix for BCB and BOOST_NO_MEMBER_TEMPLATE_FRIENDS

From: Pavel Vozenilek (pavel_vozenilek_at_[hidden])
Date: 2004-02-21 16:35:18

I believe config macro BOOST_NO_MEMBER_TEMPLATE_FRIENDS should be defined
for BCB 6.

Currently it is defined only for BCB 5.5.1 and less but with BCB 6:
- compiling test file boost_no_mem_templ_frnds.cxx fails,
- the problem shows in Serialization library too.

So I recommend to change borland.hpp to define this macro for BCB 6 (and
likely for Kylix which is simply BCB6 ported to Linux).

BCB6 patch 4 == 0x564
Kylix = 0x570

/Pavel