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--- lib/math.in.h.orig 2019-01-02 16:55:35.064459973 +0100
+++ lib/math.in.h 2019-01-02 17:42:43.450242836 +0100
@@ -2342,75 +2342,6 @@
#endif
-#if @GNULIB_SIGNBIT@
-# if (@REPLACE_SIGNBIT_USING_GCC@ \
- && (!defined __cplusplus || __cplusplus < 201103))
-# undef signbit
- /* GCC 4.0 and newer provides three built-ins for signbit. */
-# define signbit(x) \
- (sizeof (x) == sizeof (long double) ? __builtin_signbitl (x) : \
- sizeof (x) == sizeof (double) ? __builtin_signbit (x) : \
- __builtin_signbitf (x))
-# endif
-# if @REPLACE_SIGNBIT@
-# undef signbit
-_GL_EXTERN_C int gl_signbitf (float arg);
-_GL_EXTERN_C int gl_signbitd (double arg);
-_GL_EXTERN_C int gl_signbitl (long double arg);
-# if __GNUC__ >= 2 && !defined __STRICT_ANSI__
-# define _GL_NUM_UINT_WORDS(type) \
- ((sizeof (type) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
-# if defined FLT_SIGNBIT_WORD && defined FLT_SIGNBIT_BIT && !defined gl_signbitf
-# define gl_signbitf_OPTIMIZED_MACRO
-# define gl_signbitf(arg) \
- ({ union { float _value; \
- unsigned int _word[_GL_NUM_UINT_WORDS (float)]; \
- } _m; \
- _m._value = (arg); \
- (_m._word[FLT_SIGNBIT_WORD] >> FLT_SIGNBIT_BIT) & 1; \
- })
-# endif
-# if defined DBL_SIGNBIT_WORD && defined DBL_SIGNBIT_BIT && !defined gl_signbitd
-# define gl_signbitd_OPTIMIZED_MACRO
-# define gl_signbitd(arg) \
- ({ union { double _value; \
- unsigned int _word[_GL_NUM_UINT_WORDS (double)]; \
- } _m; \
- _m._value = (arg); \
- (_m._word[DBL_SIGNBIT_WORD] >> DBL_SIGNBIT_BIT) & 1; \
- })
-# endif
-# if defined LDBL_SIGNBIT_WORD && defined LDBL_SIGNBIT_BIT && !defined gl_signbitl
-# define gl_signbitl_OPTIMIZED_MACRO
-# define gl_signbitl(arg) \
- ({ union { long double _value; \
- unsigned int _word[_GL_NUM_UINT_WORDS (long double)]; \
- } _m; \
- _m._value = (arg); \
- (_m._word[LDBL_SIGNBIT_WORD] >> LDBL_SIGNBIT_BIT) & 1; \
- })
-# endif
-# endif
-# define signbit(x) \
- (sizeof (x) == sizeof (long double) ? gl_signbitl (x) : \
- sizeof (x) == sizeof (double) ? gl_signbitd (x) : \
- gl_signbitf (x))
-# endif
-# ifdef __cplusplus
-# if defined signbit || defined GNULIB_NAMESPACE
-_GL_MATH_CXX_REAL_FLOATING_DECL_1 (signbit)
-# undef signbit
-_GL_MATH_CXX_REAL_FLOATING_DECL_2 (signbit)
-# endif
-# endif
-#elif defined GNULIB_POSIXCHECK
-# if defined signbit
-_GL_WARN_REAL_FLOATING_DECL (signbit);
-# undef signbit
-# define signbit(x) _GL_WARN_REAL_FLOATING_IMPL (signbit, x)
-# endif
-#endif
-
_GL_INLINE_HEADER_END
#endif /* _@GUARD_PREFIX@_MATH_H */
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