Re: [boost] [Build] Specify compiler on the command line

Subject: Re: [boost] [Build] Specify compiler on the command line
From: Louis Dionne (ldionne.2_at_[hidden])
Date: 2015-10-16 12:37:43

Larry Evans <cppljevans <at> suddenlink.net> writes:

> 
> On 10/15/2015 01:24 PM, Andrey Semashev wrote:
> > On 15.10.2015 21:13, Louis Dionne wrote:
> >> Hi,
> >>
> >> Still attempting to setup Boost.Build for Hana, I find myself unable to
> >> specify the compiler to be used by `b2` on the command line. The system
> >> compiler is then used by default, which does not work because I need to
> >> test on recent compilers.
> [snip]
> > You can use the --toolset option:
> > 
> > bjam --toolset=gcc ...
> > bjam --toolset=gcc-4.7 ...
> > bjam --toolset=clang ...
> > 
> > Bjam will look for different versions of compilers installed on the
> > system and invoke the proper compiler based on the toolset name. You
> > only have to have lines like these in your user-config.jam:
> > 
> > using gcc ;
> > using clang ;
> > 
> > 
> In case clang is not in normal places,
> this part of a user-config.jam would work:
> 
> [...]
> 
> an the toolset option would be:
> 
>   b2 --toolset=clang-3.7
> 

Yes, this works but the problem is that it's not script friendly, because
you
have to write the file in the right place, and then call b2. I'm trying to
run Boost.Build from Travis, and so far it hasn't been easy. Anyway, I got
it
to work even though it's not pretty.

Thanks,
Louis

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