[Swarm-Support] strange things with interface files

[Paul Box]

Hello Group

I have found a couple of threads in the archive describing this 
problem, but none that seem to give a solution.

I have a program that's been running fine, but has recently started 
showing errors listed below on compilation.  This seems to be a fairly 
simple Objective-C issue, but I have been staring at the relevant files 
for a couple of days and am stumped as to what's causing the problem.  
Any suggestions would be welcome.

Here's what I believe are the relevant files:

---------------------------------------------------
console output
---------------------------------------------------

address@hidden 190304]$ make
gcc -c -g -O2 -g -march=i386 -mcpu=i686 -fgnu-runtime 
-fno-strict-aliasing -Wall -Wno-import -Wno-protocol -Wno-long-long 
-Wno-error -D_GNU_SOURCE -DAPPNAME=biox     -I/usr/include/swarm 
CARunner.m
In file included from ModelSwarm.h:15,
                 from CellSurface.h:15,
                 from CARunner.h:69,
                 from CARunner.m:19:
Shrimp.h:22: cannot find interface declaration for `CARunner', 
superclass of `Shrimp'
make: *** [CARunner.o] Error 1

The files mentioned are:
---------------------------------------------------
Shrimp.h
---------------------------------------------------

#import "CARunner.h"

@interface Shrimp: CARunner
{
  id modelSwarm;
  id cellSurface;
  Color myColor;
  id limboList;

  int size;  // size of the shrimp
  int age; // how old is this shrimp?
}

 ....
@end

---------------------------------------------------
CARunner.h
---------------------------------------------------

#import <objectbase.h>
#import <objectbase/SwarmObject.h>
#import "CellSurface.h"
// #import "neighbor.h"
#import "Eneighbor.h"

@interface CARunner: SwarmObject
{
  id world;
  BOOL embedded;   // if YES, then agent is currently embedded in world;
                   // if NO, agent is currently warped to
                   // "hyperspace"...
  id myCell;  // what cell am I occupying?
  int x, y;
  Eneighbor * eNeighbor;
}
 ...
@end


////////////////////////////////////////
// Paul Box
// Aquatic, Watershed, and Earth Resources
// Utah State University