diff --git a/ChangeLog.m68k b/ChangeLog.m68k
index 9fafc08c9f..c7d068e36b 100644
--- a/ChangeLog.m68k
+++ b/ChangeLog.m68k
@@ -1,5 +1,8 @@
 2010-03-13  Andreas Schwab  <schwab@linux-m68k.org>
 
+	* sysdeps/m68k/m680x0/fpu/s_ccosh.c: Use signbit macro.
+	* sysdeps/m68k/m680x0/fpu/s_ccos.c: Likewise.
+
 	* sysdeps/m68k/m680x0/fpu/bits/mathinline.h (__signbit)
 	(__signbitf, __signbitl): Always define as inline.
 
diff --git a/sysdeps/m68k/m680x0/fpu/s_ccos.c b/sysdeps/m68k/m680x0/fpu/s_ccos.c
index d302d3d86b..8239159647 100644
--- a/sysdeps/m68k/m680x0/fpu/s_ccos.c
+++ b/sysdeps/m68k/m680x0/fpu/s_ccos.c
@@ -1,5 +1,5 @@
 /* Complex cosine function.  m68k fpu version
-   Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1999, 2010 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>.
 
@@ -48,7 +48,7 @@ s(__ccos) (__complex__ float_type x)
 	     : "f" (__real__ x));
       __real__ retval = cos_rx * m81(__ieee754_cosh) (__imag__ x);
       if (rx_cond & __M81_COND_ZERO)
-	__imag__ retval = (m81(__signbit) (__imag__ x)
+	__imag__ retval = (signbit (__imag__ x)
 			   ? __real__ x : -__real__ x);
       else
 	__imag__ retval = -sin_rx * m81(__ieee754_sinh) (__imag__ x);
diff --git a/sysdeps/m68k/m680x0/fpu/s_ccosh.c b/sysdeps/m68k/m680x0/fpu/s_ccosh.c
index 1698881b9f..d272e98f2a 100644
--- a/sysdeps/m68k/m680x0/fpu/s_ccosh.c
+++ b/sysdeps/m68k/m680x0/fpu/s_ccosh.c
@@ -1,5 +1,5 @@
 /* Complex cosine hyperbole function.  m68k fpu version
-   Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1999, 2010 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>.
 
@@ -48,7 +48,7 @@ s(__ccosh) (__complex__ float_type x)
 	     : "f" (__imag__ x));
       __real__ retval = cos_ix * m81(__ieee754_cosh) (__real__ x);
       if (ix_cond & __M81_COND_ZERO)
-	__imag__ retval = (m81(__signbit) (__real__ x)
+	__imag__ retval = (signbit (__real__ x)
 			   ? -__imag__ x : __imag__ x);
       else
 	__imag__ retval = sin_ix * m81(__ieee754_sinh) (__real__ x);