Re: Crosscompiling native compiler

[Brian Ford <ford at vss dot fsi dot com>]

On Sat, 1 Jan 2000, Frank Meurer wrote:

> On Fri, 31 Dec 1999, Andy wrote:
> 
> These things I had to do when I build the crosscompiler. Building the cross-
> compiler didn't make so many trouble like "cross-native-compiling".
> (Still don't know the right term. :-)
> 
I believe that this is just a special case of what is known as a "Canadian
cross".

> > As for  RTFM  look for it in the to gcc directory eithther under install or
> > INSTALL
> I never heard of that file! ;-)
> 
info gcc ? :)

> Here's a list of simple commands like I used to crosscompile the native
> compiler (without prefix etc.):
> 
> cd ../gcc-2.7.2.3/
> make distclean
> ./configure --with-gnu-ld --with-gnu-as --host=m68k-unknown-linux m68k-unknown-linux # output will be "Links are now set up to build a native compiler for m68k-unknown-linux"
Here                                                                ^

Specifing m68k-unknown-linux here tells configure you are building on that
type of host.  That is not correct and you should let it guess that
anyway.  Also note that it is generally a good idea to build in a seperate
tree from the source.  GNU as and ld should be automatically detected so
these options are not needed.  Try:

./configure --host=m68k-unknown-linux --target=m68k-unknown-linux

letting configure guess that build=i386-*-*.

> > >I want to cross-compile a native compiler (is "cross-compiling" still the
> > >right term?):
> > >
> > >build:  i386-unknown-linux
> > >host:   m68k-unknown-linux
> > >target: m68k-unknown-linux
> > >gcc-version: 2.7.2.3
> > >
You said it all right here.


--
Brian Ford
Software Engineer
Vital Visual Simulation Systems
FlightSafety International
Phone: 314-551-8460
Fax:   314-551-8444


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