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+2011-12-21  Ulrich Drepper  <drepper@gmail.com>
+
+	* math/s_cacosh.c: Use Kahan's formula if the subtraction could lead
+	to large cancellation.
+	* math/s_cacoshf.c: Likewise.
+	* math/s_cacoshl.c: Likewise.
+
 2011-11-18  Richard B. Kreckel  <kreckel@ginac.de>
 
 	[BZ #13305]