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Re: 64-bit configure hell
On Wed, Nov 24, 2004 at 07:20:46PM -0500, Kaveh R. Ghazi wrote:
> > Some solutions that I have found so far:
> > 1) Disable 64-bit multilib when configuring on G4s.
>
> Even though it's a 64-bit OS, some Solaris2.7 installations only
> support 32-bit binaries, probably on older processors just like your
> situation Stan.
>
> The official solution there is to simply disable multilib during
> configure just as David suggests. See:
> http://gcc.gnu.org/install/specific.html#sparc-sun-solaris2*
How about a blacklist approach? If we have a specific OS or processor
where we know that the answers we would otherwise get from configure about
64-bit support are wrong, it could just be flagged based on the
target triplet generated by config.guess. In some cases config.guess
might need to be refined a bit to detect processor variants if this
isn't done already.
Certainly we can document it in install/specific.html, but it would
be nicer if ./configure, make bootstrap just works (or at least stops
with a readable error message).