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-rw-r--r--math/math_private.h14
1 files changed, 14 insertions, 0 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. */