Re: [jamboost] Re: Patch: gcc -mno-cygwin support in Boost.Build v2.

From: Vladimir Prus (ghost_at_[hidden])
Date: 2004-04-05 04:20:08

David Abrahams wrote:

> > We can use
> >
> > bjam cflags=-mno-cygwin linkflags=-mno-cygwin
> >
> > I'm not sure that a special command line option is good idea. After all,
> > the original poster wants to always build without cygwin, so always
> > specifying a command line option is inconvenient.
>
> The idea was for people like me who want to test no-cygwin builds
> along with cygwin builds, as though they were separate toolsets. For
> that I want a non-free feature, I think.

I understand you now. I think separate toolset can be used for this, but 
another solution is also possible

feature.subfeature toolset gcc : runtime 
: cygwin nocygwin : propagated composite ;

feature.compose <toolset-gcc:runtime>nocygwin 
: <cflags>-mno-cygwin <linkflags>-mno-cygwin ;

After this, you should be able to run

bjam gcc-cygwin gcc-nocygwin

(though I haven't tested it)

- Volodya