Portage has such a "FEATURE":
compressdebug
Compress the debug sections in the split debug files with
zlib to save space.
Make sure you have built both binutils and gdb with
USE=zlib support for this
to work. See splitdebug for general split debug
information (upon which this
feature depends).
which can be considered esp. if we're perhaps going to use -ggdb.
(By the way, I wonder if it'll be enough to make Chromium compile
with -ggdb on x86, which is problematic. Probably this option doesn't
change anything about this because the linker would still need the same
amount of memory during linking, I think.)
