[Bug other/67099] Documentation --with-host-libstdcxx is outdated, mentions ppl

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67099

--- Comment #2 from vries at gcc dot gnu.org ---
If this ( https://gcc.gnu.org/ml/gcc-patches/2015-08/msg00603.html ) gets
approved, --with-host-libstdcxx will be removed, and we can mark this as
resolved-wont-fix.