[llvm-commits] [PATCH] x86_64 detection and building on 10.6

[Mike Stump]

On Aug 30, 2009, at 12:31 PM, Evan Phoenix wrote:
> Currently, it's not possible to build LLVM and link it against  
> something compiled by default on 10.6, since LLVM forces itself to  
> build 32bit only, and 10.6 defaults to compile 64bit by default.

Not quite right:

$ gcc -arch ppc64 -E -dM -x c /dev/null -o - | grep LP64
#define __LP64__ 1
#define _LP64 1

If you check uname -m and if it says i386, then this is safe to do.  I  
support the general idea however.