revert last change, blas_quickdivide returns a signed int again

common_x86_64.h

@@ -1,4 +1,4 @@
-/*********************************************************************/
+ /*********************************************************************/
 /* Copyright 2009, 2010 The University of Texas at Austin.           */
 /* All rights reserved.                                              */
 /*                                                                   */
@@ -199,7 +199,7 @@ static __inline BLASLONG blas_quickdivide(BLASLONG x, BLASLONG y){
 #else
 extern unsigned int blas_quick_divide_table[];
 
-static __inline unsigned int blas_quickdivide(unsigned int x, unsigned int y){
+static __inline int blas_quickdivide(unsigned int x, unsigned int y){
 
   unsigned int result;