CGFloat causes iPhone Unit Testing Bundle to fail build

I'm having problems getting an iPhone Unit Testing Bundle to compile when the code it references uses CGFloats. If I recall correctly, CGFloat is just a pre-processor macro so I'm guessing it's not getting replaced properly, but as I am relatively new to this iPhone caper I have no idea where to start looking to fix it. I've already compared the values in the Info page f开发者_如何学Goor both the app's target and the testing bundle and they all seem to be largely the same.

Here are the steps to replicate in Xcode 3.2.1 and Xcode 3.1.4:

Create a New Project > View Based Application Create a New Target > Unit Testing Bundle Ctrl+Click on Tests Target > Get Info Add "CoreGraphics.framework" to the linked libraries Add new Objective-C class, ensure both targets are ticked

// SomeClass.h
#import <Foundation/Foundation.h>

@interface SomeClass : NSObject {

}
-(CGFloat)doStuff;
@end

// SomeClass.m
#import "SomeClass.h"

@implementation SomeClass
-(CGFloat)doStuff {
    return 9.9;
}
@end

Ctrl+Click on Tests target > Build "Tests"

The following errors appear in my Build Results window anywhere a CGFloat is referenced:

/Users/shabbyrobe/Code/Tests/StupidCGFloat/Classes/SomeClass.h:15:0 /Users/shabbyrobe/Code/Tests/StupidCGFloat/Classes/SomeClass.h:15: error: expected ')' before 'CGFloat'

You have to have:

#import <CoreGraphics/CoreGraphics.h>

Just adding the framework is not enough.