I wanted to try to enable sjavac in a jprt run, but realized there was no way to do it. Simplest way is to add a variable to common/makefiles/Jprt.gmk that triggers --enable-sjavac to be added to the configure command line.

Doing this however uncovers a bug with how the LOG variable is treated. In jprt, "nofile" is added to LOG and isn't properly removed before that variable is forwarded to sjavac. This also needs to be fixed.