5261 libm should stop using synonyms.h
5298 fabs is 0-sized, confuses dis(1) and others
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Approved by: Gordon Ross <gwr@nexenta.com>

@@ -25,12 +25,12 @@
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma weak erf = __erf
-#pragma weak erfc = __erfc
+#pragma weak __erf = erf
+#pragma weak __erfc = erfc
 
 /* INDENT OFF */
 /*
  * double erf(double x)
  * double erfc(double x)

@@ -125,11 +125,10 @@
  *              erfc(0) = 1, erfc(inf) = 0, erfc(-inf) = 2,
  *      erfc/erf(NaN) is NaN
  */
 /* INDENT ON */
 
-#include "libm_synonyms.h"      /* __erf, __erfc, __exp */
 #include "libm_macros.h"
 #include <math.h>
 
 static const double xxx[] = {
 /* tiny */      1e-300,