These are the (work in progress) SunOS jdk builder patches.
Here are just the patches; the actual script to drive the builds is in the jdk-sunos-builder repository.
The patches here come originally from the jdk builds in the tribblix/build repository, but have been modified and modernized. The issue here is that while the patches were correct at the time, for the system (OS, compilers, tools, etc) of the time, many of the older versions simply won't build on current systems, so the patches have been updated in an attempt to make the whole chain buildable.