I've been working on the proposed big classpath merge recently, and I
thought I'd write a note describing how it will look and work, to sort
of ease people into it.
The basic idea is to reduce merging by letting us drop a classpath
tree directly into the libgcj tree. One goal is to make it possible
to work on libgcj by simply checking out a classpath tree and updating
it independently, and have all commits go into classpath.
First, the copy of classpath goes in gcc/libjava/classpath. I
considered a new top-level directory, but that doesn't work that well
since we want to impact classpath's build minimally, and we need to be
able to modify the command-line arguments to the classpath configure.