llvm-toolchain makes buildds run out of space

[Luca Falavigna <dktrkranz@debian.org>]

Hi,

I noticed llvm-toolchain-3.3 is not able to compile on several
architecture because it requires a lot of disk space (around 20 GB),
and buildds run out of space quite often: now it happens on ia64,
s390x and sparc, but happened on i386 too in the past.

Is there anything that can be done to make sure buildds have enough
free space before attempting to build this package? If not, do you
have other suggestions?

P.S. please keep me CC'ed.

Cheers,
Luca