making the cross tools- more info

[M. Warner Losh]

In message: <20090519.141224.556005618.imp at bsdimp.com>
            "M. Warner Losh" <imp at bsdimp.com> writes:
: In message: <4A1310F8.3070202 at telenix.org>
:             Chuck Robey <chuckr at telenix.org> writes:
: : I have one bit more of info, so I'm going to paste it at the end.
: : -------------------------------------
: : Referring to the "Mini-install guide" that's on the Arm web page, I've
: : built/installed the compiler, but when I got to the 2nd set of instructions,
: : about building the binutils, it gives me this error after doing quite a bit of
: : building:
: : 
: : make: don't know how to make /usr/cross/usr/lib/libc.a. Stop
: : *** Error code 2
: : 
: : The DESTDIR is /usr/cross, and the command itself from the guide sets the
: : TOOLS_PREFIX also to /usr/cross.  Any idea what's going on, that it's refusing
: : to use my system libc.a?  It's a cross-compiler here, which means it's going to
: : execute here on my i386 machine, so it really SHOULD use my local libc.a (not
: : some libc.a for the Arm arch), right?
: : 
: : 
: : [ADDED} the build error came in the "all" target part of building of ld, which
: : is the 7th app in that subdir (all the others went beautifully).  Svn diff
: : doesn't tell me that I have any mods, and seeing as I only recently changed
: : from cvs to svn (about 2 months ago) I'm really pretty sure I haven't hacked
: : into there any.
: 
: I usually use:
: 
: cd /usr/src
: sudo make xdev TARGET=arm TARGET_ARCH=arm
: to do all that...

Err, got confused between the buildworld method and the xdev method:

sudo make xdev XDEV=arm XDEV_ARCH=arm

is what I use.  Well, really, what I usually use is:

setenv TARGET arm
make buildworld
make buildkernel KERNCONF=blah

and then s/KERNCONF/KERNFAST/ after the first time unless I'm hacking
the config files.  This just works and I don't have to think about
it.  The xdev stuff is more tailored to cross building whole projects
as well (or hacking on ports support for cross build :).

Warner