From a9c34472a0f9ae5ec9b419e66b5af2fc62cb7452 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Mon, 17 Oct 2005 04:52:32 +0000
Subject: [PATCH] 2005-01-07  Richard Henderson  <rth@redhat.com>

	[BZ #721]
	* math/math_private.h (__copysign): Define as builtin for gcc 4.
	(__copysignf, __copysignl): Likewise.
	* sysdeps/alpha/fpu/bits/mathinline.h (copysign): Don't define
	for gcc 4.0.
	(copysignf, copysignl, fabsf, fabs): Likewise.
	(__copysign, __copysignf, __copysignl): Remove.
	(__fabs, __fabsf): Remove.
---
 math/math_private.h                 | 14 ++++++++++++++
 sysdeps/alpha/fpu/bits/mathinline.h | 17 +++++------------
 2 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/math/math_private.h b/math/math_private.h
index f545841df0..a6a85d3b1e 100644
--- a/math/math_private.h
+++ b/math/math_private.h
@@ -192,6 +192,10 @@ extern int    __kernel_rem_pio2 (double*,double*,int,int,int, const int32_t*);
 /* internal functions.  */
 extern double __copysign (double x, double __y);
 
+#if __GNUC_PREREQ (4, 0)
+extern inline double __copysign (double x, double y)
+{ return __builtin_copysign (x, y); }
+#endif
 
 /* ieee style elementary float functions */
 extern float __ieee754_sqrtf (float);
@@ -235,6 +239,10 @@ extern int   __kernel_rem_pio2f (float*,float*,int,int,int, const int32_t*);
 /* internal functions.  */
 extern float __copysignf (float x, float __y);
 
+#if __GNUC_PREREQ (4, 0)
+extern inline float __copysignf (float x, float y)
+{ return __builtin_copysignf (x, y); }
+#endif
 
 /* ieee style elementary long double functions */
 extern long double __ieee754_sqrtl (long double);
@@ -298,6 +306,12 @@ extern long double fabsl (long double x);
 extern void __sincosl (long double, long double *, long double *);
 extern long double __logbl (long double x);
 extern long double __significandl (long double x);
+
+#if __GNUC_PREREQ (4, 0)
+extern inline long double __copysignl (long double x, long double y)
+{ return __builtin_copysignl (x, y); }
+#endif
+
 #endif
 
 /* Prototypes for functions of the IBM Accurate Mathematical Library.  */
diff --git a/sysdeps/alpha/fpu/bits/mathinline.h b/sysdeps/alpha/fpu/bits/mathinline.h
index 187bd42f33..87d40058c3 100644
--- a/sysdeps/alpha/fpu/bits/mathinline.h
+++ b/sysdeps/alpha/fpu/bits/mathinline.h
@@ -46,7 +46,8 @@
 #if (!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) \
     && defined __OPTIMIZE__
 
-#define __inline_copysign(NAME, TYPE)					\
+#if !__GNUC_PREREQ (4, 0)
+# define __inline_copysign(NAME, TYPE)					\
 __MATH_INLINE TYPE							\
 __NTH (NAME (TYPE __x, TYPE __y))					\
 {									\
@@ -60,19 +61,11 @@ __inline_copysign (copysignf, float)
 __inline_copysign (__copysign, double)
 __inline_copysign (copysign, double)
 
-#undef __MATH_INLINE_copysign
+# undef __inline_copysign
+#endif
 
 
-#if __GNUC_PREREQ (2, 8)
-__MATH_INLINE float
-__NTH (__fabsf (float __x)) { return __builtin_fabsf (__x); }
-__MATH_INLINE float
-__NTH (fabsf (float __x)) { return __builtin_fabsf (__x); }
-__MATH_INLINE double
-__NTH (__fabs (double __x)) { return __builtin_fabs (__x); }
-__MATH_INLINE double
-__NTH (fabs (double __x)) { return __builtin_fabs (__x); }
-#else
+#if !__GNUC_PREREQ (2, 8)
 # define __inline_fabs(NAME, TYPE)			\
 __MATH_INLINE TYPE					\
 __NTH (NAME (TYPE __x))					\
-- 
2.11.4.GIT