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cross-compiling changes



[ CC'd to port-powerpc since there is likely to be some interest there,
  as well ... maybe you noticed my mega-commit yesterday.. ]

Hi folks...

I've recently committed some changes to various system Makefiles and
bsd.*.mk files that facilitate cross-compiling.  I'm using these changes
to cross-compile NetBSD/powerpc from NetBSD/hp300.

I've been building NetBSD/hp300 natively with these changes for some
time, so I don't anticipate any problems...

In any case, below I've included the environment variables I set to
turn on cross-compiling.  Note, I haven't build the _entire_ source
tree with these, since there are some programs that use _VERY_ twisted
build processes that I haven't had a chance to fix up yet (namely
Kerberos, tn3270, etc.)  However, I _have_ converted src/bin/sh :-)

PLEASE -- before you try this, make sure that you are running VERY
up-to-date versions of make(1), lorder(1), and the bsd.*.mk files,
as well as install(1).

PowerPC folks -- I will make toolchain sources available as soon as I
work out a buglet in the linker that prevents kernels linked with it
from booting (ugh, you don't want to know..)

Jason R. Thorpe                                       
thorpej%nas.nasa.gov@localhost
NASA Ames Research Center                               Home: 408.866.1912
NAS: M/S 258-6                                          Work: 415.604.0935
Moffett Field, CA 94035                                Pager: 415.428.6939

 ----- snip -----
#!/bin/sh -

# x-powerpc-env
#
# Set up cross-compiling environment for NetBSD/powerpc target

AR=/usr/local/toolchain/bin/powerpc-unknown-netbsd-ar
export AR

RANLIB=/usr/local/toolchain/bin/powerpc-unknown-netbsd-ranlib
export RANLIB

AS=/usr/local/toolchain/bin/powerpc-unknown-netbsd-as
export AS

CC=/usr/local/toolchain/bin/powerpc-unknown-netbsd-gcc
export CC
CXX=/usr/local/toolchain/bin/powerpc-unknown-netbsd-g++
export CXX

LD=/usr/local/toolchain/bin/powerpc-unknown-netbsd-ld
export LD

NM=/usr/local/toolchain/bin/powerpc-unknown-netbsd-nm
export NM

SIZE=/usr/local/toolchain/bin/powerpc-unknown-netbsd-size
export SIZE

STRIP=/usr/local/toolchain/bin/powerpc-unknown-netbsd-strip
export STRIP

OBJDUMP=/usr/local/toolchain/bin/powerpc-unknown-netbsd-objdump
export OBJDUMP

OBJCOPY=/usr/local/toolchain/bin/powerpc-unknown-netbsd-objcopy
export OBJCOPY

NOPROFILE=XXX
export NOPROFILE

EXPORTABLE_SYSTEM=XXX
export EXPORTABLE_SYSTEM

MACHINE=powerpc
export MACHINE

MACHINE_ARCH=powerpc
export MACHINE_ARCH

DESTDIR=/usr/local/toolchain/powerpc-unknown-netbsd/destdir
export DESTDIR

exec $SHELL



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