[icedtea zero] enable 32bit builds for powerpc

[Gary Benson]

Andrew Haley wrote:
> Gary Benson wrote:
> > Andrew Haley wrote:
> > > On many Linux PPC boxes the kernel is 64-bit but userspace
> > > libraries are all installed as 32-bit.  This is because 32-bit
> > > is usually much faster than 64-bit.  We need to allow for this
> > > situation.
> > 
> > And does ./configure actually detect this?
> 
> Err, you are the one with the Linux PPC box.  Does it?  "uname -m"
> should return ppc64 for the kernel, but perhaps config.guess does
> something a bit more sophisticated.

My PPC box is multilib; I use setarch to in order to do 32-bit
builds, which causes uname -m to report "ppc".  And as far as I
can see config.guess does not do anything particularly exciting:

  UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
  UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
  ...
  case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
  ...
    ppc:Linux:*:*)
        echo powerpc-unknown-linux-${LIBC}
        exit ;;
    ppc64:Linux:*:*)
        echo powerpc64-unknown-linux-${LIBC}
        exit ;;

So I don't see how doko's patch changes anything...

Cheers,
Gary

-- 
http://gbenson.net/