This article is from the Apple II GNO FAQ, by Devin Reade with numerous contributions by others.
A#6.5: === See the CAVEAT in Q#6.1 ===
There are two versions of this file, one for GNO and one for
ORCA/Shell. For GNO, the /lib/orcacdefs/defaults.h file should
contain:
#define __appleiigs__
#define __GNO__
#pragma path "/usr/include"
#pragma path "/HFSinclude" /* needed for GNO v2.0.6 */
#pragma path "/lang/orca/libraries/orcacdefs"
(See Q#11.11 regarding a problem with using the "path" pragma.)
For ORCA/Shell, the /lang/orca/libraries/orcacdefs/defaults.h
file should contain:
#define __appleiigs__
 
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