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

["howarth at bromo dot med.uc.edu" <gcc-bugzilla at gcc dot gnu dot org>]

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

--- Comment #8 from howarth at bromo dot med.uc.edu ---
(In reply to Manuel LÃpez-IbÃÃez from comment #7)
> (In reply to howarth from comment #5)
> > It looks like the failure occurs when the java classes are being compiled.
> > Can we revert r217383 until the flaw in its handling of the parallel make is
> > resolved? Having to build gcc serially is very painful.
> 
> Can you try reverting it locally and making a diff of the build logs? It
> doesn't make sense that a patch that only affects Fortran and does not
> change any build files breaks libjava, but I guess everything is possible.
> The errors that you mention do not clarify what is "missing/broken". Isn't
> there any error earlier produced by gcc or libtool?

Sorry about accidentally cc'ing you on this PR. This is breakage in the libjava
parallel make introduced by r217383.