thorpej 89b1a9ca73 Introduce 3 new MK* variables that have effect in the USE_NEW_TOOLCHAIN
case:

	MKBFD	If set to "no", disables building of libbfd, libiberty,
		and all things that depend on them (binutils/gas/ld, gdb,
		dbsym, mdsetimage).

	MKGDB	If set to "no", disables bulding of gdb.

	MKGCC	If set to "no", disables building of gcc and the
		gcc-related libraries (libg2c, libgcc, libobjc, libstdc++).

These are useful for building platforms for which either of the following
situations are true:

	(1) You have no userland from which to run toolchain2netbsd
	    in order to build the appropriate toolchain build framework.

	(2) The platform which you are building requires a newer set
	    of tools than are currently in the tree (e.g. x86-64, ia64).
2001-12-31 23:04:11 +00:00
..
2001-12-12 01:48:43 +00:00

src/gnu/README:			<$Revision: 1.3 $>


Organization of Sources:

This directory hierarchy is using a new organization that
separates the GNU sources from the BSD-style infrastructure
used to build the GNU sources.  The GNU sources are kept in
the standard GNU source tree layout under:

	dist/*

The build infrastructure uses the normal BSD way under:

	lib/*
	usr.bin/*

The makefiles in the above hierarchy will "reach over" into
the GNU sources (src/gnu/dist) for everything they need.


Maintenance Strategy:

The sources under src/gnu/dist are generally a combination of
some published distribution plus changes that we submit to the
maintainers and that are not yet published by them.  There are
a few files that are never expected to be submitted to the FSF,
(i.e. BSD-style makefiles and such) and those generally should
stay in src/gnu/lib or src/gnu/usr.bin (the BSD build areas).

Make sure all changes made to the GNU sources are submitted to
the appropriate maintainer, but only after coordinating with the
NetBSD maintainers by sending your proposed submission to the
<tech-toolchain@netbsd.org> mailing list.  Only send the changes
to the third-party maintainers after consensus has been reached.


Maintenance History:

Original GNU sources were imported as follows:	[gwr,1997/09/24]
	dist/gdb	FSF gdb-4-16
	dist/readline	FSF readline-2-1
	dist/(other)	FSF binutils-2-8
Updated dist/(other) to FSF binutils-2-8-1	[gwr,1997/09/24]

Several changes have been integrated since the initial import,
and those will be submitted to the maintainers after this code
has been tested on all NetBSD ports (i.e. after NetBSD 1.3).
Some of the integration was done by importing a file from a
later snapshot.  Please log all such imports here.

Updated these files via import with tags: FSF cygnus970817
	dist/gdb/alpha-tdep.c
	dist/gdb/config/alpha/tm-alpha.h