[Bug bootstrap/63827] parallel make in libjava broken at r217383

[howarth at bromo dot med.uc.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63827

--- Comment #13 from howarth at bromo dot med.uc.edu ---
(In reply to Manuel López-Ibáñez from comment #12)
> (In reply to howarth from comment #11)
>
> If you are using --enable-checking=release, perhaps you are seeing:
> https://gcc.gnu.org/ml/gcc-patches/2014-11/msg01240.html

I'm not using --enable-checking= at all so for trunk that should default to
checking, no? So far, at r217382 and r217383 for the reduced language set of
c,c++,java, I don't see the bootstrap failure. I am currently testing
c,c++,fortran,java but my suspicion is that I may need the full language set of
c,c++,fortran,lto,objc,obj-c++,java to reproduce this here. If so, then would
imagine I am seeing a slight shift in the timing of the build what tickles a
latent parallel make issue in libjava. Certainly every failure I have seem
in...

make: INTERNAL: Exiting with 1 jobserver tokens available; should be 16!

appears associated with the build in the libjava directory.