Re: Possible slight speedup to non-interactive /bin/sh startup

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Mon, 11 Feb 2019 09:10:48 +0100
    From:        Martin Husemann <martin%duskware.de@localhost>
    Message-ID:  <20190211081048.GA16146%mail.duskware.de@localhost>

  | Make the makefile define that depending on LDSTATIC being defined/empty?
  | That would also cover the MKDYNAMICROOT=no case (I think).

I currently have:

.if (!defined(MKPIC) || ${MKPIC} != "no") && \
    (!defined(LDSTATIC) || ${LDSTATIC} == ${LDSTATIC:S/-static//})
.-include "${NETBSDSRCDIR}/lib/libedit/shlib_version"
.if defined(major)
CPPFLAGS+=	-DDEFERRED_LIBS='"libedit.so.${major}"'
.else
CPPFLAGS+=	-DDEFERRED_LIBS='"libedit.so"'
.endif
.else
LDADD+=	-ledit -lterminfo
DPADD+=	${LIBEDIT} ${LIBTERMINFO}
.endif

Whenever that falls into the .else case it will build/link just the same
as it has done for the past several years, only in the other case is there
a change.

This digs the libedit major number out of the libedit source dir, which
should be what we want (building sh needs NETBSDSRCDIR to be available
in any case - at least parts of it) - should there be no major number
available it will fall back to the "accept any version and hope" strategy,
as this should never happen on any real build, only if someone is playing
around (do it should be OK, you'll get whatever libedit is installed when
the build was done, provided it is not changed later).

Still no path for it however.

This looks to be doing the right thing for building /rescue/sh which with
this is back to having history & editing support.

Still don't know whether this is worth continuing with however.

kre