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QuartzCore.h not being recognized

Subject: QuartzCore.h not being recognized
From: Julian Blow <email@hidden>
Date: Sun, 4 Mar 2007 14:42:53 +0000
Delivered-to: email@hidden
Delivered-to: email@hidden

Dear all,

apologies if I'm being stupid, but I can't seem to solve this problem and I've checked the lists...

I'm trying to use Core Image, but can't get my product to link. I can strip my problem down to the following (created in a pristine new project):

// header file
#import <Cocoa/Cocoa.h>
#import <QuartzCore/QuartzCore.h>
@interface JBController : NSObject  { }
@end

// program file
#import "JBController.h"
@implementation JBController
-(void) awakeFromNib {
	CIImage* theCIImage=[[[CIImage alloc] initWithData:nil] autorelease];
	}
@end

This builds and executes fine in debug configuration, but if I switch to release, I get the following link error message: Undefined symbols: .objc_class_name_CIImage /Volumes/data/my programs/QuartzTest/build/QuartzTest.build/Release/ QuartzTest.build/Objects-normal/ppc/QTController.o reference to undefined .objc_class_name_CIImage collect2: ld returned 1 exit status

This seems to happen whenever I have any Core Image object I try to use. All I can guess is I've set something wrong in my build settings, but what? I'm linking against the MacOSX10.4u.sdk

Thanks in advance,

Julian Blow
FrogDance Software
e-mail: email@hidden
http://www.frogdance.dundee.ac.uk/

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