Re: Re Crosscompiling a native compiler

[Frank Meurer <Frank dot Meurer at gmd dot de>]

On Sat, 8 Jan 2000, Jeff Bailey wrote:

> I'm trying to bootstrap a native compiler right now, and I've gotten a 
> little farther than you, I think.
> 
> > > ./configure --with-gnu-ld --with-gnu-as --host=m68k-unknown-linux 
> > m68k-unknown-linux 
> 
> This is my configure line for building a hurd native compiler:
> 
> /configure --build=i686-pc-linux-gnu --host=i586-pc-gnu 
> --target=i586-pc-gnu --prefix=
> 
> And it works for me - I found that it was important to ensure that I 
> specified all three (build, host, target)
I thought that one should not specify build because the configure-script
tries to do it.

Your "host code" can be run on your "build machine" (I guess!) and
therefrom you won't have *my* problem, that the compiled "xgcc"-file
(m68k-code) can't be executed on my i386-build-machine.
After spending much hours I say it's IMHO impossible to build a native
gcc-2.7.2.3 for a foreign hardware in ONE stage because the compiled
"xgcc" (will later be renamed) will be invoked but cannot be executed.

> If that doesn't work, make sure that you're 100% certain of your Glibc 
> compile and your cross-compile.  You can look at my posted instructions 
> at: http://hurd.zugzug.com/doc/cross/cross.html  The instructions are 
> written assuming a linux-to-hurd cross, but it should be adaptable to 
> anything that uses Glibc.
You use gcc-2.95 as I read on this page!
There are significant changes between gcc-2.7.x and gcc-2.9x!
Furthermore I use "glibc1" (it's an alias, I know, actually it's the
libc5).

> I am having some difficulties now with the resultant compiler, because 
> gcc doesn't know that crt1.o is /lib/crt1.o but you can burn that bridge 
> when you come to it.  (Any suggestions from people would be wonderful!)  
> The native compiler does, however, work once LD is told where to find them.
I guess it expects it in /usr/lib, huh?
IMHO this can be modified in the Makefile.


greets,
Frank

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