What is the status of the integration of GAS 2.x into NetBSD?  I see
   there is a "gas.new" directory in the -current source tree, but is it
   actually functional?  If so, what do I need to do to use it?


excerpt from src/gnu/usr.bin/Makefile:

.if (${MACHINE_ARCH} == "alpha") || (${MACHINE_ARCH} == "arm32") || \
    (${MACHINE_ARCH} == "mips") || (${MACHINE_ARCH} == "sparc") || \
    (${MACHINE_ARCH} == "sparc64")
SUBDIR+=        gas.new
.else
SUBDIR+=        gas
.endif


(sparc64 isn't really tested; we just know the old old gas won't work ;)


i personally use the new gas on the sparc, arm32 (a.out) and
the mips (ELF) ports.  it (now, only recently) works great.


there are known problems with the i386 port.


others can correct/add to this as appropriate ;)