Mark,
I nominate PR libgcj/20155 for a "less critical" bug since it is actually a bootstrap regression on numerous platforms albeit easily worked around with a configure --disable-libgcj. The root cause is the invocation of a ~90,000 character command line (which would be beyond my expectation of a reasonable sh) to create a convinence library.
This bug was "caused" by an RTH workaround to fix piecewise linking fallout from the original workaround to this problem (PR libgcj/17222).
Kelley Cook
