Date: Thu, 18 Nov 1999 07:43:41 +1100 From: John Birrell <jb@cimlogic.com.au> To: Marcel Moolenaar <marcel@scc.nl> Cc: John Birrell <jb@cimlogic.com.au>, Warner Losh <imp@village.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src Makefile.inc1 src/usr.bin/make Makefile Message-ID: <19991118074341.A17895@freebsd1.cimlogic.com.au> In-Reply-To: <383307B3.ACE06314@scc.nl>; from Marcel Moolenaar on Wed, Nov 17, 1999 at 08:53:23PM %2B0100 References: <199911151707.JAA03820@freefall.freebsd.org> <199911160533.WAA02391@harmony.village.org> <199911161544.IAA08642@harmony.village.org> <199911161714.KAA09479@harmony.village.org> <38319FFB.530FFCC6@scc.nl> <199911161935.MAA10311@harmony.village.org> <19991117212631.A13376@freebsd1.cimlogic.com.au> <38329493.82FFA536@scc.nl> <19991118060714.B13376@freebsd1.cimlogic.com.au> <383307B3.ACE06314@scc.nl>
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On Wed, Nov 17, 1999 at 08:53:23PM +0100, Marcel Moolenaar wrote:
> You basicly have 2 variables: MACHINE_ARCH and `sysctl -n
> hw.machine_arch`. MACHINE_ARCH is set to the machine for which you're
> building and `sysctl -n hw.machine_arch` is contant, describing the host
> machine. How do you distinguish the following mandatory cases:
> 1) Make a compiler that runs on the host but makes binaries for the
> target, and 2) Make a compiler that runs on the target and makes
> binaries for the target
>
> 1) is simple: set MACHINE_ARCH=target and because sysctl=source
> CROSS_COMPILING=1 and all is fine. 2) is impossible. You need
> MACHINE_ARCH to specify for which machine the compiler should make the
> binaries, but you don't have a way to say that the compiler is supposed
> to run on the target so that CROSS_COMPILING should be 0. How do you
> pull that off?
There is a tar of the makefiles that I use to do this in my home
directory on freefall.
> > Sounds simple, but I doubt that it will work out that way because
> > of all the issues related to ${KERNEL}.
>
> What issues? Set kernel to GENERIC if not already set to something.
That wasn't acceptable to people during the elf upgrade, so I doubt
that it will be acceptable now.
--
John Birrell - jb@cimlogic.com.au; jb@freebsd.org http://www.cimlogic.com.au/
john.birrell@cai.com john.birrell@opendirectory.com.au
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