Experimental Physics and
Industrial Control System

"J. Lewis Muir" <[email protected]> · Mon, 27 Jun 2011 12:44:31 -0500

On 6/27/11 12:34 PM, J. Lewis Muir wrote:
> On 6/27/11 12:15 PM, Pelaia II, Tom wrote:
>> If you really want the EPICS_HOST_ARCH to report "64" just
>> enable the 64 bit kernel (as I have). It is easy if your
>> hardware supports it.
> 
> Hi, Tom.
> 
> I don't know what you mean by this.  I set the EPICS_HOST_ARCH
> environment variable by hand.  What kernel I'm running has
> nothing to do with what value EPICS_HOST_ARCH contains since I
> set it myself.  And of course the Mac OS X kernel knows nothing
> about the EPICS_HOST_ARCH environment variable.  Plus, the only
> supported EPICS Darwin architectures which EPICS_HOST_ARCH could
> be set to that I know of are darwin-ppc, darwin-ppcx86, and
> darwin-x86, none of which contain "64".  What am I missing?

Hi, Tom.

Maybe you're using the startup/EpicsHostArch script from EPICS
Base to set EPICS_HOST_ARCH?  I just tried that from EPICS Base
3.14.12.1 and it printed "darwin-x86_64" and exited with a 0
exit status.

$ ./startup/EpicsHostArch
darwin-x86_64

Andrew, I don't think that's correct.  My CPU is 64-bit.  I
think the script should probably print "darwin-x86" or
"darwin-ppcx86".  Or maybe the script should support printing
what ARCH_CLASS should be set to as well?

The perl version (i.e. startup/EpicsHostArch.pl) prints
"unsupported" without a newline and exits with a 0 exit status.

Lewis

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System