> make -j5 SUBTARGET=arcade PTR64=1 TOOLS=1 > make -j5 SUBTARGET=mess PTR64=1 TOOLS=1 > > Remove this STRIP_SYMBOLS=1. Not needed unless you using the SYMBOLS=1 or SYMBOLS=1 > SYMLEVEL=1 with it.
Heck, you don't even need PTR64=1 since that is the default state in the makefile.