Build with -std=gnu89 to fix the build with clang-16

This is ancient GNU software that tends to break whenever clang adds
more warnings about deprecated features in new languages versions or
turns t

Build with -std=gnu89 to fix the build with clang-16

This is ancient GNU software that tends to break whenever clang adds
more warnings about deprecated features in new languages versions or
turns them into errors. Using -std=gnu89 (the defaults for base-gcc)
for those packages means we'll probably avoid most new warnings, errors,
and possible miscompilations when updating clang.

This fixes the build of libiberty and texinfo with clang-16.

ok robert@

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a few depend:-related thingies that were still in.

okay millert@, tb@

destroy lint remnants.
okay millert@ deraadt@

Set permissions of /usr/share/info/dir explicitly, so they don't depend on
the umask.

ok millert

Fix ownership for install on a noperm filesystem.
joint work with tb

Install binaries, scripts and documentation with the usual owner/group/mode.
ok deraadt

use CC when running configure
matches the behaviour of the other Makefile.bsd-wrapper files
ok miod@

man pages can only be built after configure has run

manpage for texi2pdf, with some help from jmc@, okay theo@

let texinfo use whatever makeinfo it wants, preferably the one it just
built, and override MAKEINFOFLAGS for --no-split instead.

makeinfo --no-split, simplifies sets immensely.
Approved deraadt@, kettenis@

a few missing man pages converted from info documents; work done by jmc

Zap CLEANFILES. Those files are no longer generated.
From fransoa holop with modifcations.

disable all auto* stuff explicitly, which is a heck of a lot easier to do
now.

explicitly pass DESTDIR=value on install line, instead of tweaking
Makefiles to say DESTDIR?=.

New make passes DESTDIR correctly, and texinfo handles it correctly.

Remove unneeded SUBDIR override.

--infodir in configure. Don't rely on stuff that is no longer available.

Merge conflicts, and a few details:
- Makefile.bsd-wrapper: man pages, disable NLS for now.
- doc/Makefile.in: install man pages manually, remove buggy targets that
would break `make clean'.
- makein

Merge conflicts, and a few details:
- Makefile.bsd-wrapper: man pages, disable NLS for now.
- doc/Makefile.in: install man pages manually, remove buggy targets that
would break `make clean'.
- makeinfo/Makefile.in: shell failure ??? rework problematic line.
- util/texindex.c: let maketempname create the file, remove race condition.

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move CC, CCX, and COPTS forward; wd@ics.nara-wu.ac.jp

Clean up mess instead of applying band-aids.

Whomever thinks that a 'make clean' should do a 'make all' first shall be
cursed to do builds on a 68020 for the rest of their life!

Upgrade to 3.12, merge with OpenBSD changes.

set PATH before running configure since we can't rely on the user's path being sane

after configure, call "make all-recursive" instead of "make" -- this
short-circuits the dependencies that try to run things like automake
which we don't have and touch timestamp files in the source d

after configure, call "make all-recursive" instead of "make" -- this
short-circuits the dependencies that try to run things like automake
which we don't have and touch timestamp files in the source dir.
texinfo now appears to build in a read-only tree.

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