In JDK-8195689, the generated-configure.sh was no longer checked in, but
locally generated. The selected location for generation ($TOPDIR/.build)
was not unproblematic for some use cases. This patch attempts remedy this.
The new behaviour will be this:
* If run from $TOPDIR, the storage directory will be
* If run from $CUSTOM_ROOT, the storage directory will be
* If run from any other directory (about to become the build output
directory for the configuration), the storage directory will be
This will allow "rm -rf $TOPDIR/build" to function as before to remove
all build artifacts. It will allow configuration created in out-of-tree
directories to have the script generated locally.
I could not put the output file in build/$BUILD/configure-support, since
the $BUILD name is not yet determined. I did not want to put it in
build/configure-support, since that would make it look like a
configuration to the code that enumerates configurations in build.
I hope this addresses all issues that has been raised.