Re: request for configure clarifications on darwin10

[Bob Friesenhahn]

On Tue, 15 Sep 2009, Jack Howarth wrote:
> ps Isn't darwin10 the very first hybrid OS which the configure machinary has 
> been
> faced with? I am unaware of any other operating systems that ever differed the
> architecture of the kernel and the default code execution/generation of the
> default system compiler. Unfortunately both uname and arch will report i386 on
> darwin10 on EMT64 capable hardware. Only booting the 64-bit kernel returns
> coherency to the situation with uname and arch reporting x86_64.

The notion of a "system compiler" seems immaterial to me since we are 
not constrained to use it.  If the compiler produces default code 
which does not run under the OS, that seems like a bug to me.

Sun's Solaris supports both 32 and 64 bit kernels.  Under the 64 bit 
kernel (and the 32-bit kernel), config.guess reports 
"i386-pc-solaris2.10".  It is true that the freely downloadable 
compiler from Sun does produce i386 type code by default.

There is only so much you can expect from config.guess.  Except for 
extraordinary cases, I would expect that config.guess output would be 
based on output from 'uname'.

Bob
--
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/