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

Subject: Re: [Boost-build] howto define my own toolset
From: Stefan Seefeld (stefan_at_[hidden])
Date: 2015-09-28 16:13:05

On 28.09.2015 16:04, Vladimir Prus wrote:
>
> 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 ;
>
> ?
>

Good question. Yes, perhaps using a features is the better technique for
this.

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

Yeah, I think it would be useful for most boost developers to be able to
optionally turn on C++11 support.

Thanks,
        Stefan

>
> On Mon, Sep 28, 2015 at 10:49 PM Stefan Seefeld <stefan_at_[hidden]
> <mailto: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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      ...ich hab' noch einen Koffer in Berlin...