Re: x86 crosscompile

[Daniel Kegel]

Ralf Corsepius wrote:
> > For most packages you just need to set CFLAGS or similar to include -march 
> > for the lower platform, but for some packages setting --host= and --target= 
> > is needed, especially gcc, glibc and binutils.
> >
> > see 
> > http://www.linuxfromscratch.org/hints/downloads/files/crosscompiling-x86.txt

That's handy, thanks.  Another interesting source of info
might be the rules in http://ptxdist.sf.net, which knows
how to cross-compile quite a few apps.

> > ./configure --host=i486-pc-linux-gnu --target=i486-pc-linux-gnu
>
> For complex packages which are prepared for Canadian Cross Compilation
> (gcc/binutils/gdb/glibc etc), this can be right.

Heh.  I'm doing that now, and it looks like I need to use
modified values for build and host (with _build and _host
appended to the manufacturer field) to force the configure
scripts into cross-compile mode.   Not all i686-pc-linux-gnu's are
created equal!
- Dan