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From: Vladimir Prus (ghost_at_[hidden])
Date: 2004-06-09 01:41:31

I'd like to finally settle the question that Michael raised some time ago.
Briefly, given

using gcc ;
using gcc : 3.3 : g++-3.3 ;

it is not clear if default-configured gcc is the same as gcc 3.3, or not. This
might cause a problem for user, since he can build the project twice without
need, and it causes some complexity for toolsets.

Here's what I propose: each "configuration parameter" of toolset should be
either specified on all calls of the "using" rule, or omitted in all the
calls. The rationale is: first time user can invoke "using gcc ; " and it
will work. Advanced user, who wants to configure several version, probably
knows the version number of default "gcc" as well, so it's no problem for

I plan to introduce auxilliary funciton to call for this rule automatically,
but that's implementation issue.


- Volodya


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