Re: [Boost-build] howto define my own toolset

Subject: Re: [Boost-build] howto define my own toolset
From: Vladimir Prus (vladimir.prus_at_[hidden])
Date: 2015-09-28 16:04:39

You'd have to encode that information inside the version, like:

   using gcc : 5.2-cpp11 ;

Though, why would not use features for that? E.g.:

   feature std : optional composite : cxx11 ;
    feature.compose : <std>cxx11 : <cxxflags>whatever ;

?

We probably need to add such feature in the base system.

On Mon, Sep 28, 2015 at 10:49 PM Stefan Seefeld <stefan_at_[hidden]> wrote:

> On 28.09.2015 15:43, Vladimir Prus wrote:
> > On 25-Sep-15 6:32 PM, Stefan Seefeld wrote:
> >> On 25.09.2015 11:16, Vladimir Prus wrote:
> >>>
> >>> Stefan,
> >>>
> >>> This is described at
> >>>
> >>>
> http://www.boost.org/build/doc/html/bbv2/reference/tools.html#bbv2.reference.tools.compiler.gcc
> >>>
> >>>
> >>> Could you check whether it answers your questions?
> >>>
> >>
> >> Thanks, that's indeed a good starting point. (A reference to that
> >> section from within the Getting Started guide or the tutorial might be
> >> useful.)
> >>
> >> However, this still doesn't entirely answer my question. If I have
> >> multiple such lines in my user-config.jam file, by what means can I
> >> select via command-line options which one I want ? As all of those lines
> >> have to start with 'gcc', I don't see an alias that I could use in `bjam
> >> toolset=<alias>`, or some other command-line option.
> >
> > You can use:
> >
> >     b2 toolset=gcc-<version>
> >
> > Where <version> is either the parameter you've passed to 'using', like:
> >
> >     using gcc : 5.2 : /home/ghost/local/bin/g++ ;
> >
> > or the actual version of gcc, e.g. given:
> >
> >     using gcc :  : /home/ghost/local/bin/g++ ; # assuming this is gcc 5.2
>
> Thanks, but I think that isn't quite enough, as the new toolset I want
> to add and the default one have the same version.
> All I'm trying to do is add a variant that uses non-default command-line
> arguments (such as -std=c++11).
>
> Thanks,
>     Stefan
>
> --
>
>       ...ich hab' noch einen Koffer in Berlin...
>
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