4 files changed, 14 insertions, 5 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc
index 15509019c9..d4b0de63ac 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997-2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Jaeger <aj@suse.de>, 1997.
 
@@ -1116,7 +1116,7 @@ cacosh_test (void)
   TEST_c_c (cacosh, nan_value, nan_value, nan_value, nan_value);
 
   TEST_c_c (cacosh, 0.75L, 1.25L, 1.13239363160530819522266333696834467L, 1.11752014915610270578240049553777969L);
-  TEST_c_c (cacosh, -2, -3, -1.9833870299165354323470769028940395L, 2.1414491111159960199416055713254211L);
+  TEST_c_c (cacosh, -2, -3, 1.9833870299165354323470769028940395L, -2.1414491111159960199416055713254211L);
 
   END (cacosh, complex);
 }
diff --git a/math/s_cacosh.c b/math/s_cacosh.c
index 1ae8708d49..e921f0763e 100644
--- a/math/s_cacosh.c
+++ b/math/s_cacosh.c
@@ -1,5 +1,5 @@
 /* Return arc hyperbole cosine for double value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -73,6 +73,9 @@ __cacosh (__complex__ double x)
 
       y = __csqrt (y);
 
+      if (__real__ x < 0.0)
+	y = -y;
+
       __real__ y += __real__ x;
       __imag__ y += __imag__ x;
 
diff --git a/math/s_cacoshf.c b/math/s_cacoshf.c
index 52c35505e0..3fc48bb617 100644
--- a/math/s_cacoshf.c
+++ b/math/s_cacoshf.c
@@ -1,5 +1,5 @@
 /* Return arc hyperbole cosine for float value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -75,6 +75,9 @@ __cacoshf (__complex__ float x)
 
       y = __csqrtf (y);
 
+      if (__real__ x < 0.0)
+	y = -y;
+
       __real__ y += __real__ x;
       __imag__ y += __imag__ x;
 
diff --git a/math/s_cacoshl.c b/math/s_cacoshl.c
index 4e5e2b3e3e..643858920e 100644
--- a/math/s_cacoshl.c
+++ b/math/s_cacoshl.c
@@ -1,5 +1,5 @@
 /* Return arc hyperbole cosine for long double value.
-   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -73,6 +73,9 @@ __cacoshl (__complex__ long double x)
 
       y = __csqrtl (y);
 
+      if (__real__ x < 0.0)
+	y = -y;
+
       __real__ y += __real__ x;
       __imag__ y += __imag__ x;