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From: David Abrahams (dave_at_[hidden])
Date: 2006-12-11 08:18:36

Rene Rivera <grafikrobot_at_[hidden]> writes:

> David Abrahams wrote:
>> Eventually, with no assistance from documentation, I figured out that
>> I couldn't call my toolset gcc-mingw. So I renamed it:
>> using gcc : 3.4.2 : /tools/MinGW/bin/g++.exe ;
>> Now
>> bjam gcc-3.4.2
>> works as expected except that I see gcc-mingw-3.4.2 in target paths.
> That would be the "flavor" feature being injected to distinguish the
> MinGW specific GCC version.

I don't understand why that needs to be injected by the system into
the toolset name. There's no reason I couldn't

    using gcc : 3.4.2-mingw : /tools/MinGW/bin/g++.exe ;

if I needed the version to be distinct from other GCC versions I have

>> What would I do if I also had a cygwin gcc-3.4.2 installed? I don't
>> know.
> Just treat it as a regular Unix gcc:
> using gcc : : /path/to/g++
> And build with:
> bjam gcc

Yeah, but it's not my default gcc; I need a version identifier
(number?). What do I use for the 2nd argument?

> If you also had the MinGW version set up you could:
> bjam toolset=gcc,gcc-mingw

Oh, nonono. gcc-mingw does *not* work as a user-specified toolset
name, at least not with toolset=..., perhaps because of the way
autoconfiguration based on toolset= works: it parses the names with
([^-]+)(-(.*))? to get a toolset and version and uses the first two
groups to call init if the toolset/version isn't known. I am afraid
this nonuniformity for MinGW is going to be *big* trouble.

>> Since I do see gcc-mingw-3.4.2 in my target paths, I thought I'd try
>> bjam gcc-mingw
>> which again breaks in a strange way.
>> What all of this does and how to use it needs to be explained and
>> documented by someone who understands it.
> That would be me... But I must confess, I just dread having to edit
> the BBv2 BoostBook documentation files. I have no clue where to put
> things and writing docs in XML is among the most painful tasks I can
> think of.

Well, I feel sorry for you I guess. Someone should make a
BoostBook -> QuickBook translator for this purpose. But all that
said, MinGW handling has to be rationalized and made clear.

Dave Abrahams
Boost Consulting

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