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diff --git a/plugins/FreeImage/Source/Metadata/FIRational.h b/plugins/FreeImage/Source/Metadata/FIRational.h
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-// ==========================================================
-// Helper class for rational numbers
-//
-// Design and implementation by
-// - Hervé Drolon <drolon@infonie.fr>
-//
-// This file is part of FreeImage 3
-//
-// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
-// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
-// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
-// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
-// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
-// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
-// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
-// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
-// THIS DISCLAIMER.
-//
-// Use at your own risk!
-// ==========================================================
-
-#ifndef FIRATIONAL_H
-#define FIRATIONAL_H
-
-/**
-Helper class to deal with rational numbers. 
-NB: LONG data type is assumed to be a signed 32-bit number. 
-*/
-class FIRational {
-private:
-	/// numerator
-	LONG _numerator;
-	/// denominator
-	LONG _denominator;
-
-public:
-	/// Default constructor
-	FIRational();
-
-	/// Constructor with longs
-	FIRational(LONG n, LONG d = 1);
-
-	/// Constructor with FITAG
-	FIRational(const FITAG *tag);
-
-	/// Constructor with a float
-	FIRational(float value);
-
-	/// Copy constructor
-	FIRational (const FIRational& r);
-
-	/// Destructor
-	~FIRational();
-
-	/// Assignement operator
-	FIRational& operator=(FIRational& r);
-
-	/// Get the numerator
-	LONG getNumerator();
-
-	/// Get the denominator
-	LONG getDenominator();
-
-	/// Converts rational value by truncating towards zero
-	LONG truncate() {
-		// Return truncated rational
-		return _denominator ? (LONG) (_numerator / _denominator) : 0;
-	}
-
-	/**@name Implicit conversions */
-	//@{	
-	short shortValue() {
-		return (short)truncate();
-	}
-	int intValue() {
-		return (int)truncate();
-	}
-	LONG longValue() {
-		return (LONG)truncate();
-	}
-	float floatValue() {
-		return _denominator ? ((float)_numerator)/((float)_denominator) : 0;
-	}
-	double doubleValue() {
-		return _denominator ? ((double)_numerator)/((double)_denominator) : 0;
-	}
-	//@}
-
-	/// Checks if this rational number is an integer, either positive or negative
-	BOOL isInteger();
-
-	/// Convert as "numerator/denominator"
-	std::string toString();
-
-private:
-	/// Initialize and normalize a rational number
-	void initialize(LONG n, LONG d);
-
-	/// Calculate GCD
-	LONG gcd(LONG a, LONG b);
-	
-	/// Normalize numerator / denominator 
-	void normalize();
-
-};
-
-#endif // FIRATIONAL_H
-