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John Ericson ab4f385b3c Deprecate a.out support for NetBSD targets.
As discussed previously, a.out support is now quite deprecated, and in
some cases removed, in both Binutils itself and NetBSD, so this legacy
default makes little sense. `netbsdelf*` and `netbsdaout*` still work
allowing the user to be explicit about there choice. Additionally, the
configure script warns about the change as Nick Clifton requested.

One possible concern was the status of NetBSD on NS32K, where only a.out
was supported. But per [1] NetBSD has removed support, and if it were to
come back, it would be with ELF. The binutils implementation is
therefore marked obsolete, per the instructions in the last message.

With that patch and this one applied, I have confirmed the following:

--target=i686-unknown-netbsd
--target=i686-unknown-netbsdelf
  builds completely

--target=i686-unknown-netbsdaout
  properly fails because target is deprecated.

--target=vax-unknown-netbsdaout builds completely except for gas, where
the target is deprecated.

[1]: https://mail-index.netbsd.org/tech-toolchain/2021/07/19/msg004025.html
---
 bfd/config.bfd                             | 43 +++++++++++++--------
 bfd/configure.ac                           |  5 +--
 binutils/testsuite/binutils-all/nm.exp     |  2 +-
 binutils/testsuite/lib/binutils-common.exp |  7 +---
 config/picflag.m4                          |  4 +-
 gas/configure.tgt                          |  9 +++--
 gas/testsuite/gas/arm/blx-bl-convert.d     |  2 +-
 gas/testsuite/gas/arm/blx-local-thumb.d    |  2 +-
 gas/testsuite/gas/sh/basic.exp             |  2 +-
 gdb/configure.host                         | 34 +++++++----------
 gdb/configure.tgt                          |  2 +-
 gdb/testsuite/gdb.asm/asm-source.exp       |  6 +--
 intl/configure                             |  2 +-
 ld/configure.tgt                           | 44 +++++++++++-----------
 ld/testsuite/ld-arm/arm-elf.exp            |  4 +-
 ld/testsuite/ld-elf/elf.exp                |  2 +-
 ld/testsuite/ld-elf/shared.exp             |  4 +-
 libiberty/configure                        |  4 +-
2021-08-11 13:17:54 +01:00
bfd Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
binutils Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
config Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
contrib
cpu Re: opcodes: constify & local meps macros 2021-07-05 21:40:49 +09:30
elfcpp Add markers for 2.37 branch 2021-07-03 14:50:57 +01:00
etc texi2pod.pl: add no-op --no-split option support [PR28144] 2021-07-28 11:39:40 +01:00
gas Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
gdb Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
gdbserver Fix the Windows build 2021-07-26 07:34:37 -06:00
gdbsupport gdbsupport: add debug assertions in gdb::optional::get 2021-08-03 08:50:56 -04:00
gnulib gnulib: define the path to gnulib's parent dir 2021-06-14 18:01:20 -04:00
gold Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
gprof Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
include PATCH [6/10] arm: Add -march=armv8.1-m.main+pacbti flag 2021-07-26 14:18:24 +02:00
intl Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
ld Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
libctf Add markers for 2.37 branch 2021-07-03 14:50:57 +01:00
libdecnumber
libiberty Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
opcodes Deprecate a.out support for NetBSD targets. 2021-08-11 13:17:54 +01:00
readline Update config.sub and config.guess for MIPS R3 and R5 ISA support 2021-05-24 18:11:49 +02:00
sim sim: erc32: use libsim.a for common objects 2021-07-08 02:30:37 -04:00
texinfo
zlib
.cvsignore
.gitattributes
.gitignore
ar-lib
ChangeLog Add markers for 2.37 branch 2021-07-03 14:50:57 +01:00
compile
config-ml.in
config.guess Update config.sub and config.guess for MIPS R3 and R5 ISA support 2021-05-24 18:11:49 +02:00
config.rpath
config.sub Update config.sub and config.guess for MIPS R3 and R5 ISA support 2021-05-24 18:11:49 +02:00
configure sim: leverage gnulib 2021-05-29 11:56:43 -04:00
configure.ac sim: leverage gnulib 2021-05-29 11:56:43 -04:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS MAINTAINERS: Update path to readline config.{sub,guess} files 2021-05-24 18:11:49 +02:00
Makefile.def sim: depend on gnulib 2021-05-18 17:47:27 -04:00
Makefile.in sim: depend on gnulib 2021-05-18 17:47:27 -04:00
Makefile.tpl
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
README-maintainer-mode
setup.com
src-release.sh
symlink-tree
test-driver
ylwrap

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.