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diff --git a/sysdeps/powerpc/powerpc32/fpu/s_copysign.S b/sysdeps/powerpc/powerpc32/fpu/s_copysign.S
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+/* Copy a sign bit between floating-point values.
+ Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* This has been coded in assembler because GCC makes such a mess of it
+ when it's coded in C. */
+
+#include <sysdep.h>
+
+ENTRY(__copysign)
+/* double [f1] copysign (double [f1] x, double [f2] y);
+ copysign(x,y) returns a value with the magnitude of x and
+ with the sign bit of y. */
+ stwu r1,-16(r1)
+ stfd fp2,8(r1)
+ lwz r3,8(r1)
+ cmpwi r3,0
+ addi r1,r1,16
+ blt L(0)
+ fabs fp1,fp1
+ blr
+L(0): fnabs fp1,fp1
+ blr
+ END (__copysign)
+
+weak_alias(__copysign,copysign)
+
+/* It turns out that it's safe to use this code even for single-precision. */
+weak_alias(__copysign,copysignf)
+strong_alias(__copysign,__copysignf)
+
+#ifdef NO_LONG_DOUBLE
+weak_alias(__copysign,copysignl)
+strong_alias(__copysign,__copysignl)
+#endif