Re: Cheatsheet for building gcc

[Paolo Bonzini <paolo dot bonzini at lu dot unisi dot ch>]

> Is there a way how to do it without reconfiguring gcc?

No.  Do you think it would be best to have --enable-stage1-languages=all 
in non-release branches?  The time taken to compile the stage1 
(nonoptimized) non-C front-ends is small, and the advantage seems 
significant.

> > > Q6) How to clean up everything except for the stage1 compiler and
> > >    its runtime (libgcc, libmudflap, libgomp)?
> > make restrap (which will also start a bootstrap)
>
> Would it be possible to add a possibility to just clean up the things,
> without restarting the bootstrap (i.e., to move everything to the
> state I would have after "make stage1-bubble" if I started from the scratch)?

Actually, I was wrong as "make restrap" will also delete the runtime. 
The closest things to what you want are:
- "make distclean-stage2"; however it will leave there all the target 
libraries if they have already been compiled, not only the runtime.
- "make distclean-stage2 clean-target"; which will remove also the runtime.

Paolo