Error occurs in libstdc++-v3/include is ignored

[Benjamin Kosnik]

>In my case, generation of precompiled header has failed in all of the
>multilib dirs. Should it continue in such a case?

Dunno. Your log does look a bit odd.

The libstdc++ PCH has always been treated as an optional thing, not a requirement.
The library can be built and used without using PCH, so perhaps this is appropriate.

However, it looks (from your other messages) that something else is
wrong, so I suspect the real problem lies elsewhere, not in the PCH bits
per se.

-benjamin