https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63827
--- Comment #7 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- (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?