Log message:
add support for SIGUSR1/SIGUSR2 to adjust frequency instead of strategy.

new -x means USR1 reduces the minimum and USR2 increases the minimum,
and new -X adjusts the maximum similarly.

-X is designed to allow the user to force the CPU into a lower speed
frequency, without having to restart estd entirely.  -x was added for
symmetry.

Log message:
sysutils: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes

Log message:
sysutils: Remove SHA1 hashes for distfiles

Log message:
various fixes for arm64 big endian support.

most of these simply extend matching from "aarch64" to \ 
"aarch64eb"
in various forms of code.  most remaining uses in pkgsrc of
"MACHINE_ARCH == aarch64" are because of missing aarch64eb support,
such as most of the binary-bootstrap requiring languages like rust,
go, and java.

no pkg-bump because this shouldn't change packages on systems that
could already build all of these.

Log message:
estd: avoid complex netbsd version logic.

This is a workaround for EOL netbsd versions

Log message:
Add "Generic Multi-domain Mode" support and track CPU usage on a per-domain
basis when enabled.

Log message:
allow NetBSD-[6-9]* on powerpc and mips64el

Log message:
all: replace SUBST_SED with the simpler SUBST_VARS

pkglint -Wall -r --only "substitution command" -F

With manual review and indentation fixes since pkglint doesn't get that
part correct in every case.

Log message:
Update urls

Log message:
Allow build on NetBSD/aarch64