1. Remove all the special handling of variables (-d -p -P -s -S) that
were dealing with DBG (-d) LDSTATIC/NOPIE (-p), and the rest with
disabling/enabling sanitizers.
2. Use emalloc/estrdup for all the allocators instead of only some cases.
3. Add -V varspec which passes variables on the command line (as DBG
and LDSTATIC used to be passed before) instead of appending them
to the on-the-fly Makefile using -v varspec.
4. Change the distrib and rescue Makefiles to use -V instead of the removed
flags.

The motivation of this is to make variable handling consistent, less magical,
and remove the need for changing crunchgen each time we want to add disabling
an option by default.

(as proposed in tech-toolchain)

set MAKEDEVTARGETS=ramdisk so that the ramdisk /dev/ is populated.
from PR#51659.

branches: 1.8.30; 1.8.32;
In distrib/*/ramdisks/common/Makefile.ramdisk, allow the caller to
pre-define the LISTS variable if they do not want it to include
${.CURDIR}/lists. This opens the possibility of making some of the
many distrib/*/ramdisks/*/lists files shared in the future.

XXX: Some of the differences between these files seem to be unnecessary.

branches: 1.7.6; 1.7.12;
Remove terminfo.db as it's now embedded in libterminfo.

Use the rescue terminfo.db in our images instead of termcap.

Replace references to local and now no-longer-existing termcap files
with references to ${DISTRIBB}/common/termcap. Hi, abs@!

${NETBSDSRCDIR}/distrib/common/protocols => ${DISTRIBDIR}/common/protocols
${NETBSDSRCDIR}/distrib/common/services => ${DISTRIBDIR}/common/services

Change ramdisks from dhclient to dhcpcd and add corresponding glue to
sysinst. For amd64, the crunchgen binary shrinks by 150KB uncompresssed,
60KB compressed.

branches: 1.2.2;
Use the cutdown distrib/common/services and distrib/common/protocols
rather than the full fat etc versions

branches: 1.1.2; 1.1.4; 1.1.8;
- put netbsd.ofppc and ofwboot.ofppc in the root of ofppciso.cd.

- create a mostly working sysinst/ramdisk environment. i was
able to successfully run sysinst, but the screen displays many
"bad format `p'" errors i am yet to track down entirely that
make it somewhat difficult to see.