[racket-dev] Build failure on specific PPC systems

From: James Vega (jamessan at debian.org)
Date: Sun Aug 28 17:51:32 EDT 2011

On Fri, Aug 26, 2011 at 12:06:28PM -0400, Lennart Sorensen wrote:
> On Fri, Aug 26, 2011 at 09:34:30AM -0600, Matthew Flatt wrote:
> > Right --- the Racket JIT definitely does not support PPC in 64-bit
> > mode.
> > 
> > The Racket PPC JIT is enabled on Linux when `powerpc' is #defined at
> > build time. Is `powerpc' #defined for the 64-bit build, perhaps in
> > addition to `powerpc64'? Or is just `powerpc64' #defined?
> By default debian ppc is 32bit.  The kernel is 64bit and some libraries
> have 64bit versions built, but for the most part the system is 32bit.
> Unlike x86_64, ppc (and sparc and a number of others) are usualyl less
> efficient in 64bit mode due to pointer sizes and cache overhead, and
> don't gain anything from going 64bit unless the application really has
> a need for lots of memory space.  Hence no ppc64 port in debian.
> I even tried doing 'linux32 dpkg-buildpackage' which makes the uname -m
> claim to be 32bit, and even then with 32bit userspace and a kernel
> claiming to be 32bit, it still failed the same way.

So, does anyone have an idea on how to fix this?  I'm afraid I'm a bit
out of my league here without some guidance.

GPG Key: 1024D/61326D40 2003-09-02 James Vega <jamessan at debian.org>
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