http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53384
--- Comment #4 from John T <jrt at worldlinc dot net> 2012-05-18 15:07:48 UTC --- This bug was actually two bugs, the checksum error and the erroneous handling of the gcc used in fixincludes/config.cache I found another way to trip the error involving config.cache. After a successful bootstrap build of gcc 4.6.3, I did a "make distclean" before re-running configure to try building java. On re-running configure, I got the message that CC changed from the value listed in fixincludes/config.cache. "Make distclean" should have cleared all data from the previous build that would interfere with a clean build.