Create a new bsd.hostinit.mk file and put the build definitions for all host
programs there; make all Makefiles that use bsd.hostprog.mk include it.
Namely turn off MKREPRO and don't make lint, man pages, info files etc.
Remove the Makefile.inc files that contained these same settings, and
remove the settings from Makefile.host

PR/53238: Robert Elz: Disable MKREPRO in tools; the host compiler might
not support the necessary options. This is done thusly:

1. Set MKREPRO=no in Makefile.host. This handles all the Makefiles that
use it and don't include bsd.own.mk.
2. Create Makefile.inc and set MKREPRO=no in it. Change the Makefiles that
include bsd.own.mk, to include bsd.init.mk which includes Makefile.inc
first. This will also allow us to control other tools options from a
single location if we need to.

XXX: pullup-8

branches: 1.6.22; 1.6.28;
Make most things under src/tools use the TOOLDIR version of compat/defs.mk,
instead of the version in the .OBJDIR of tools/compat.

branches: 1.5.18; 1.5.24;
Use ${TOOL_SED} instead of just "sed" while building other tools.

Where sed is used in a != assignment, use
.if make(depend) || make(all) || make(dependall) || make(install)
to ensure the command doesn't run at "make obj" time when TOOL_SED will
not have been built.

Use ${TOOL_AWK} instead of ${AWK} or plain "awk" in make commands.
Pass AWK=${TOOL_AWK:Q} to shell scripts that use awk.

config and genassym are not sysadmin tools, they are development tools.
As such, they don't belong in /usr/sbin, but rather /usr/bin. Move them
there.

use the copy in /usr/src/usr.sbin/

Build genassym as a host tool. Part of PR toolchain/30350