[Scons-users] HOWTO select a toolchain

[William Blevins]

On Mon, Jan 4, 2016 at 8:32 PM, Stefan Seefeld <stefan at seefeld.name> wrote:

> On 04.01.2016 15:09, William Blevins wrote:
> > The User Guide has a section at the bottom that lists all the internal
> > variables. See Appendix
> > A http://www.scons.org/doc/HTML/scons-user/apa.html
> >
> > For example, to change the C++ compiler change the CXX variable and to
> > set the C compiler set the CC variable.
>
> Thanks. And thanks Marc for the details. Not having to set the SH*
> variables was exactly one point I was wondering about.
>

If you are curious as to how the default link variables are setup, then
please see
https://bitbucket.org/scons/scons/src/0d265ab5bab28eda792c24e054e4d02f24ebb338/src/engine/SCons/Tool/link.py?at=default&fileviewer=file-view-default

The smart_link function is the important part.


>
>
> And sorry to insist, but I still haven't found the answer to this:
>
> >
> >
> >     >     And a related question: The SCons man-page
> >     >     (http://www.scons.org/doc/HTML/scons-man.html) mentions "tool
> >     >     specifications". Are they available as "current toolchain"
> >     properties
> >     >     inside SConscripts ? I'd like to add my own flags based on
> which
> >     >     toolchain is selected, so having access to that classifier
> would
> >     >     be useful.
> >
>
> The reason I'm asking is because I'd like to define portable "features",
> which map to compiler-specific flags. If I were able to query the
> toolchain along the "type" as discussed in the man page, that might help
> me a lot.
>
> Thanks,
>         Stefan
>
> --
>
>       ...ich hab' noch einen Koffer in Berlin...
>
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