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improve clang support (9)
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From: |
Bruno Haible |
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Subject: |
improve clang support (9) |
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Date: |
Sun, 09 Aug 2020 12:39:08 +0200 |
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User-agent: |
KMail/5.1.3 (Linux/4.4.0-186-generic; KDE/5.18.0; x86_64; ; ) |
clang has the builtins
__builtin_signbit
__builtin_signbitf
__builtin_signbitl
like GCC has.
2020-08-09 Bruno Haible <bruno@clisp.org>
Use __builtin_signbit* with clang.
* lib/math.in.h (signbit): Use __builtin_signbit{,f,l} also on clang.
* m4/signbit.m4 (gl_SIGNBIT): Use __builtin_signbit{,f,l} also on clang.
Set REPLACE_SIGNBIT_USING_BUILTINS, not REPLACE_SIGNBIT_USING_GCC.
* m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize
REPLACE_SIGNBIT_USING_BUILTINS, not REPLACE_SIGNBIT_USING_GCC.
* modules/math (Makefile.am): Substitute REPLACE_SIGNBIT_USING_BUILTINS,
not REPLACE_SIGNBIT_USING_GCC.
diff --git a/lib/math.in.h b/lib/math.in.h
index 10514f1..4654a46 100644
--- a/lib/math.in.h
+++ b/lib/math.in.h
@@ -2446,10 +2446,10 @@ _GL_WARN_REAL_FLOATING_DECL (isnan);
#if @GNULIB_SIGNBIT@
-# if (@REPLACE_SIGNBIT_USING_GCC@ \
+# if (@REPLACE_SIGNBIT_USING_BUILTINS@ \
&& (!defined __cplusplus || __cplusplus < 201103))
# undef signbit
- /* GCC 4.0 and newer provides three built-ins for signbit. */
+ /* GCC >= 4.0 and clang provide three built-ins for signbit. */
# define signbit(x) \
(sizeof (x) == sizeof (long double) ? __builtin_signbitl (x) : \
sizeof (x) == sizeof (double) ? __builtin_signbit (x) : \
diff --git a/m4/math_h.m4 b/m4/math_h.m4
index 1d0169f..44c810c 100644
--- a/m4/math_h.m4
+++ b/m4/math_h.m4
@@ -1,4 +1,4 @@
-# math_h.m4 serial 119
+# math_h.m4 serial 120
dnl Copyright (C) 2007-2020 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -160,181 +160,181 @@ AC_DEFUN([gl_MATH_H_DEFAULTS],
GNULIB_TRUNCF=0; AC_SUBST([GNULIB_TRUNCF])
GNULIB_TRUNCL=0; AC_SUBST([GNULIB_TRUNCL])
dnl Assume proper GNU behavior unless another module says otherwise.
- HAVE_ACOSF=1; AC_SUBST([HAVE_ACOSF])
- HAVE_ACOSL=1; AC_SUBST([HAVE_ACOSL])
- HAVE_ASINF=1; AC_SUBST([HAVE_ASINF])
- HAVE_ASINL=1; AC_SUBST([HAVE_ASINL])
- HAVE_ATANF=1; AC_SUBST([HAVE_ATANF])
- HAVE_ATANL=1; AC_SUBST([HAVE_ATANL])
- HAVE_ATAN2F=1; AC_SUBST([HAVE_ATAN2F])
- HAVE_CBRT=1; AC_SUBST([HAVE_CBRT])
- HAVE_CBRTF=1; AC_SUBST([HAVE_CBRTF])
- HAVE_CBRTL=1; AC_SUBST([HAVE_CBRTL])
- HAVE_COPYSIGN=1; AC_SUBST([HAVE_COPYSIGN])
- HAVE_COPYSIGNL=1; AC_SUBST([HAVE_COPYSIGNL])
- HAVE_COSF=1; AC_SUBST([HAVE_COSF])
- HAVE_COSL=1; AC_SUBST([HAVE_COSL])
- HAVE_COSHF=1; AC_SUBST([HAVE_COSHF])
- HAVE_EXPF=1; AC_SUBST([HAVE_EXPF])
- HAVE_EXPL=1; AC_SUBST([HAVE_EXPL])
- HAVE_EXPM1=1; AC_SUBST([HAVE_EXPM1])
- HAVE_EXPM1F=1; AC_SUBST([HAVE_EXPM1F])
- HAVE_FABSF=1; AC_SUBST([HAVE_FABSF])
- HAVE_FABSL=1; AC_SUBST([HAVE_FABSL])
- HAVE_FMA=1; AC_SUBST([HAVE_FMA])
- HAVE_FMAF=1; AC_SUBST([HAVE_FMAF])
- HAVE_FMAL=1; AC_SUBST([HAVE_FMAL])
- HAVE_FMODF=1; AC_SUBST([HAVE_FMODF])
- HAVE_FMODL=1; AC_SUBST([HAVE_FMODL])
- HAVE_FREXPF=1; AC_SUBST([HAVE_FREXPF])
- HAVE_HYPOTF=1; AC_SUBST([HAVE_HYPOTF])
- HAVE_HYPOTL=1; AC_SUBST([HAVE_HYPOTL])
- HAVE_ILOGB=1; AC_SUBST([HAVE_ILOGB])
- HAVE_ILOGBF=1; AC_SUBST([HAVE_ILOGBF])
- HAVE_ILOGBL=1; AC_SUBST([HAVE_ILOGBL])
- HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF])
- HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND])
- HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL])
- HAVE_LDEXPF=1; AC_SUBST([HAVE_LDEXPF])
- HAVE_LOGF=1; AC_SUBST([HAVE_LOGF])
- HAVE_LOGL=1; AC_SUBST([HAVE_LOGL])
- HAVE_LOG10F=1; AC_SUBST([HAVE_LOG10F])
- HAVE_LOG10L=1; AC_SUBST([HAVE_LOG10L])
- HAVE_LOG1P=1; AC_SUBST([HAVE_LOG1P])
- HAVE_LOG1PF=1; AC_SUBST([HAVE_LOG1PF])
- HAVE_LOG1PL=1; AC_SUBST([HAVE_LOG1PL])
- HAVE_LOGBF=1; AC_SUBST([HAVE_LOGBF])
- HAVE_LOGBL=1; AC_SUBST([HAVE_LOGBL])
- HAVE_MODFF=1; AC_SUBST([HAVE_MODFF])
- HAVE_MODFL=1; AC_SUBST([HAVE_MODFL])
- HAVE_POWF=1; AC_SUBST([HAVE_POWF])
- HAVE_REMAINDER=1; AC_SUBST([HAVE_REMAINDER])
- HAVE_REMAINDERF=1; AC_SUBST([HAVE_REMAINDERF])
- HAVE_RINT=1; AC_SUBST([HAVE_RINT])
- HAVE_RINTL=1; AC_SUBST([HAVE_RINTL])
- HAVE_SINF=1; AC_SUBST([HAVE_SINF])
- HAVE_SINL=1; AC_SUBST([HAVE_SINL])
- HAVE_SINHF=1; AC_SUBST([HAVE_SINHF])
- HAVE_SQRTF=1; AC_SUBST([HAVE_SQRTF])
- HAVE_SQRTL=1; AC_SUBST([HAVE_SQRTL])
- HAVE_TANF=1; AC_SUBST([HAVE_TANF])
- HAVE_TANL=1; AC_SUBST([HAVE_TANL])
- HAVE_TANHF=1; AC_SUBST([HAVE_TANHF])
- HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL])
- HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL])
- HAVE_DECL_ATANL=1; AC_SUBST([HAVE_DECL_ATANL])
- HAVE_DECL_CBRTF=1; AC_SUBST([HAVE_DECL_CBRTF])
- HAVE_DECL_CBRTL=1; AC_SUBST([HAVE_DECL_CBRTL])
- HAVE_DECL_CEILF=1; AC_SUBST([HAVE_DECL_CEILF])
- HAVE_DECL_CEILL=1; AC_SUBST([HAVE_DECL_CEILL])
- HAVE_DECL_COPYSIGNF=1; AC_SUBST([HAVE_DECL_COPYSIGNF])
- HAVE_DECL_COSL=1; AC_SUBST([HAVE_DECL_COSL])
- HAVE_DECL_EXPL=1; AC_SUBST([HAVE_DECL_EXPL])
- HAVE_DECL_EXP2=1; AC_SUBST([HAVE_DECL_EXP2])
- HAVE_DECL_EXP2F=1; AC_SUBST([HAVE_DECL_EXP2F])
- HAVE_DECL_EXP2L=1; AC_SUBST([HAVE_DECL_EXP2L])
- HAVE_DECL_EXPM1L=1; AC_SUBST([HAVE_DECL_EXPM1L])
- HAVE_DECL_FLOORF=1; AC_SUBST([HAVE_DECL_FLOORF])
- HAVE_DECL_FLOORL=1; AC_SUBST([HAVE_DECL_FLOORL])
- HAVE_DECL_FREXPL=1; AC_SUBST([HAVE_DECL_FREXPL])
- HAVE_DECL_LDEXPL=1; AC_SUBST([HAVE_DECL_LDEXPL])
- HAVE_DECL_LOGL=1; AC_SUBST([HAVE_DECL_LOGL])
- HAVE_DECL_LOG10L=1; AC_SUBST([HAVE_DECL_LOG10L])
- HAVE_DECL_LOG2=1; AC_SUBST([HAVE_DECL_LOG2])
- HAVE_DECL_LOG2F=1; AC_SUBST([HAVE_DECL_LOG2F])
- HAVE_DECL_LOG2L=1; AC_SUBST([HAVE_DECL_LOG2L])
- HAVE_DECL_LOGB=1; AC_SUBST([HAVE_DECL_LOGB])
- HAVE_DECL_REMAINDER=1; AC_SUBST([HAVE_DECL_REMAINDER])
- HAVE_DECL_REMAINDERL=1; AC_SUBST([HAVE_DECL_REMAINDERL])
- HAVE_DECL_RINTF=1; AC_SUBST([HAVE_DECL_RINTF])
- HAVE_DECL_ROUND=1; AC_SUBST([HAVE_DECL_ROUND])
- HAVE_DECL_ROUNDF=1; AC_SUBST([HAVE_DECL_ROUNDF])
- HAVE_DECL_ROUNDL=1; AC_SUBST([HAVE_DECL_ROUNDL])
- HAVE_DECL_SINL=1; AC_SUBST([HAVE_DECL_SINL])
- HAVE_DECL_SQRTL=1; AC_SUBST([HAVE_DECL_SQRTL])
- HAVE_DECL_TANL=1; AC_SUBST([HAVE_DECL_TANL])
- HAVE_DECL_TRUNC=1; AC_SUBST([HAVE_DECL_TRUNC])
- HAVE_DECL_TRUNCF=1; AC_SUBST([HAVE_DECL_TRUNCF])
- HAVE_DECL_TRUNCL=1; AC_SUBST([HAVE_DECL_TRUNCL])
- REPLACE_ACOSF=0; AC_SUBST([REPLACE_ACOSF])
- REPLACE_ASINF=0; AC_SUBST([REPLACE_ASINF])
- REPLACE_ATANF=0; AC_SUBST([REPLACE_ATANF])
- REPLACE_ATAN2F=0; AC_SUBST([REPLACE_ATAN2F])
- REPLACE_CBRTF=0; AC_SUBST([REPLACE_CBRTF])
- REPLACE_CBRTL=0; AC_SUBST([REPLACE_CBRTL])
- REPLACE_CEIL=0; AC_SUBST([REPLACE_CEIL])
- REPLACE_CEILF=0; AC_SUBST([REPLACE_CEILF])
- REPLACE_CEILL=0; AC_SUBST([REPLACE_CEILL])
- REPLACE_COSF=0; AC_SUBST([REPLACE_COSF])
- REPLACE_COSHF=0; AC_SUBST([REPLACE_COSHF])
- REPLACE_EXPF=0; AC_SUBST([REPLACE_EXPF])
- REPLACE_EXPL=0; AC_SUBST([REPLACE_EXPL])
- REPLACE_EXPM1=0; AC_SUBST([REPLACE_EXPM1])
- REPLACE_EXPM1F=0; AC_SUBST([REPLACE_EXPM1F])
- REPLACE_EXPM1L=0; AC_SUBST([REPLACE_EXPM1L])
- REPLACE_EXP2=0; AC_SUBST([REPLACE_EXP2])
- REPLACE_EXP2L=0; AC_SUBST([REPLACE_EXP2L])
- REPLACE_FABSL=0; AC_SUBST([REPLACE_FABSL])
- REPLACE_FLOOR=0; AC_SUBST([REPLACE_FLOOR])
- REPLACE_FLOORF=0; AC_SUBST([REPLACE_FLOORF])
- REPLACE_FLOORL=0; AC_SUBST([REPLACE_FLOORL])
- REPLACE_FMA=0; AC_SUBST([REPLACE_FMA])
- REPLACE_FMAF=0; AC_SUBST([REPLACE_FMAF])
- REPLACE_FMAL=0; AC_SUBST([REPLACE_FMAL])
- REPLACE_FMOD=0; AC_SUBST([REPLACE_FMOD])
- REPLACE_FMODF=0; AC_SUBST([REPLACE_FMODF])
- REPLACE_FMODL=0; AC_SUBST([REPLACE_FMODL])
- REPLACE_FREXPF=0; AC_SUBST([REPLACE_FREXPF])
- REPLACE_FREXP=0; AC_SUBST([REPLACE_FREXP])
- REPLACE_FREXPL=0; AC_SUBST([REPLACE_FREXPL])
- REPLACE_HUGE_VAL=0; AC_SUBST([REPLACE_HUGE_VAL])
- REPLACE_HYPOT=0; AC_SUBST([REPLACE_HYPOT])
- REPLACE_HYPOTF=0; AC_SUBST([REPLACE_HYPOTF])
- REPLACE_HYPOTL=0; AC_SUBST([REPLACE_HYPOTL])
- REPLACE_ILOGB=0; AC_SUBST([REPLACE_ILOGB])
- REPLACE_ILOGBF=0; AC_SUBST([REPLACE_ILOGBF])
- REPLACE_ILOGBL=0; AC_SUBST([REPLACE_ILOGBL])
- REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE])
- REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF])
- REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN])
- REPLACE_LDEXPL=0; AC_SUBST([REPLACE_LDEXPL])
- REPLACE_LOG=0; AC_SUBST([REPLACE_LOG])
- REPLACE_LOGF=0; AC_SUBST([REPLACE_LOGF])
- REPLACE_LOGL=0; AC_SUBST([REPLACE_LOGL])
- REPLACE_LOG10=0; AC_SUBST([REPLACE_LOG10])
- REPLACE_LOG10F=0; AC_SUBST([REPLACE_LOG10F])
- REPLACE_LOG10L=0; AC_SUBST([REPLACE_LOG10L])
- REPLACE_LOG1P=0; AC_SUBST([REPLACE_LOG1P])
- REPLACE_LOG1PF=0; AC_SUBST([REPLACE_LOG1PF])
- REPLACE_LOG1PL=0; AC_SUBST([REPLACE_LOG1PL])
- REPLACE_LOG2=0; AC_SUBST([REPLACE_LOG2])
- REPLACE_LOG2F=0; AC_SUBST([REPLACE_LOG2F])
- REPLACE_LOG2L=0; AC_SUBST([REPLACE_LOG2L])
- REPLACE_LOGB=0; AC_SUBST([REPLACE_LOGB])
- REPLACE_LOGBF=0; AC_SUBST([REPLACE_LOGBF])
- REPLACE_LOGBL=0; AC_SUBST([REPLACE_LOGBL])
- REPLACE_MODF=0; AC_SUBST([REPLACE_MODF])
- REPLACE_MODFF=0; AC_SUBST([REPLACE_MODFF])
- REPLACE_MODFL=0; AC_SUBST([REPLACE_MODFL])
- REPLACE_NAN=0; AC_SUBST([REPLACE_NAN])
- REPLACE_REMAINDER=0; AC_SUBST([REPLACE_REMAINDER])
- REPLACE_REMAINDERF=0; AC_SUBST([REPLACE_REMAINDERF])
- REPLACE_REMAINDERL=0; AC_SUBST([REPLACE_REMAINDERL])
- REPLACE_RINTL=0; AC_SUBST([REPLACE_RINTL])
- REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND])
- REPLACE_ROUNDF=0; AC_SUBST([REPLACE_ROUNDF])
- REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL])
- REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT])
- REPLACE_SIGNBIT_USING_GCC=0; AC_SUBST([REPLACE_SIGNBIT_USING_GCC])
- REPLACE_SINF=0; AC_SUBST([REPLACE_SINF])
- REPLACE_SINHF=0; AC_SUBST([REPLACE_SINHF])
- REPLACE_SQRTF=0; AC_SUBST([REPLACE_SQRTF])
- REPLACE_SQRTL=0; AC_SUBST([REPLACE_SQRTL])
- REPLACE_TANF=0; AC_SUBST([REPLACE_TANF])
- REPLACE_TANHF=0; AC_SUBST([REPLACE_TANHF])
- REPLACE_TRUNC=0; AC_SUBST([REPLACE_TRUNC])
- REPLACE_TRUNCF=0; AC_SUBST([REPLACE_TRUNCF])
- REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL])
+ HAVE_ACOSF=1; AC_SUBST([HAVE_ACOSF])
+ HAVE_ACOSL=1; AC_SUBST([HAVE_ACOSL])
+ HAVE_ASINF=1; AC_SUBST([HAVE_ASINF])
+ HAVE_ASINL=1; AC_SUBST([HAVE_ASINL])
+ HAVE_ATANF=1; AC_SUBST([HAVE_ATANF])
+ HAVE_ATANL=1; AC_SUBST([HAVE_ATANL])
+ HAVE_ATAN2F=1; AC_SUBST([HAVE_ATAN2F])
+ HAVE_CBRT=1; AC_SUBST([HAVE_CBRT])
+ HAVE_CBRTF=1; AC_SUBST([HAVE_CBRTF])
+ HAVE_CBRTL=1; AC_SUBST([HAVE_CBRTL])
+ HAVE_COPYSIGN=1; AC_SUBST([HAVE_COPYSIGN])
+ HAVE_COPYSIGNL=1; AC_SUBST([HAVE_COPYSIGNL])
+ HAVE_COSF=1; AC_SUBST([HAVE_COSF])
+ HAVE_COSL=1; AC_SUBST([HAVE_COSL])
+ HAVE_COSHF=1; AC_SUBST([HAVE_COSHF])
+ HAVE_EXPF=1; AC_SUBST([HAVE_EXPF])
+ HAVE_EXPL=1; AC_SUBST([HAVE_EXPL])
+ HAVE_EXPM1=1; AC_SUBST([HAVE_EXPM1])
+ HAVE_EXPM1F=1; AC_SUBST([HAVE_EXPM1F])
+ HAVE_FABSF=1; AC_SUBST([HAVE_FABSF])
+ HAVE_FABSL=1; AC_SUBST([HAVE_FABSL])
+ HAVE_FMA=1; AC_SUBST([HAVE_FMA])
+ HAVE_FMAF=1; AC_SUBST([HAVE_FMAF])
+ HAVE_FMAL=1; AC_SUBST([HAVE_FMAL])
+ HAVE_FMODF=1; AC_SUBST([HAVE_FMODF])
+ HAVE_FMODL=1; AC_SUBST([HAVE_FMODL])
+ HAVE_FREXPF=1; AC_SUBST([HAVE_FREXPF])
+ HAVE_HYPOTF=1; AC_SUBST([HAVE_HYPOTF])
+ HAVE_HYPOTL=1; AC_SUBST([HAVE_HYPOTL])
+ HAVE_ILOGB=1; AC_SUBST([HAVE_ILOGB])
+ HAVE_ILOGBF=1; AC_SUBST([HAVE_ILOGBF])
+ HAVE_ILOGBL=1; AC_SUBST([HAVE_ILOGBL])
+ HAVE_ISNANF=1; AC_SUBST([HAVE_ISNANF])
+ HAVE_ISNAND=1; AC_SUBST([HAVE_ISNAND])
+ HAVE_ISNANL=1; AC_SUBST([HAVE_ISNANL])
+ HAVE_LDEXPF=1; AC_SUBST([HAVE_LDEXPF])
+ HAVE_LOGF=1; AC_SUBST([HAVE_LOGF])
+ HAVE_LOGL=1; AC_SUBST([HAVE_LOGL])
+ HAVE_LOG10F=1; AC_SUBST([HAVE_LOG10F])
+ HAVE_LOG10L=1; AC_SUBST([HAVE_LOG10L])
+ HAVE_LOG1P=1; AC_SUBST([HAVE_LOG1P])
+ HAVE_LOG1PF=1; AC_SUBST([HAVE_LOG1PF])
+ HAVE_LOG1PL=1; AC_SUBST([HAVE_LOG1PL])
+ HAVE_LOGBF=1; AC_SUBST([HAVE_LOGBF])
+ HAVE_LOGBL=1; AC_SUBST([HAVE_LOGBL])
+ HAVE_MODFF=1; AC_SUBST([HAVE_MODFF])
+ HAVE_MODFL=1; AC_SUBST([HAVE_MODFL])
+ HAVE_POWF=1; AC_SUBST([HAVE_POWF])
+ HAVE_REMAINDER=1; AC_SUBST([HAVE_REMAINDER])
+ HAVE_REMAINDERF=1; AC_SUBST([HAVE_REMAINDERF])
+ HAVE_RINT=1; AC_SUBST([HAVE_RINT])
+ HAVE_RINTL=1; AC_SUBST([HAVE_RINTL])
+ HAVE_SINF=1; AC_SUBST([HAVE_SINF])
+ HAVE_SINL=1; AC_SUBST([HAVE_SINL])
+ HAVE_SINHF=1; AC_SUBST([HAVE_SINHF])
+ HAVE_SQRTF=1; AC_SUBST([HAVE_SQRTF])
+ HAVE_SQRTL=1; AC_SUBST([HAVE_SQRTL])
+ HAVE_TANF=1; AC_SUBST([HAVE_TANF])
+ HAVE_TANL=1; AC_SUBST([HAVE_TANL])
+ HAVE_TANHF=1; AC_SUBST([HAVE_TANHF])
+ HAVE_DECL_ACOSL=1; AC_SUBST([HAVE_DECL_ACOSL])
+ HAVE_DECL_ASINL=1; AC_SUBST([HAVE_DECL_ASINL])
+ HAVE_DECL_ATANL=1; AC_SUBST([HAVE_DECL_ATANL])
+ HAVE_DECL_CBRTF=1; AC_SUBST([HAVE_DECL_CBRTF])
+ HAVE_DECL_CBRTL=1; AC_SUBST([HAVE_DECL_CBRTL])
+ HAVE_DECL_CEILF=1; AC_SUBST([HAVE_DECL_CEILF])
+ HAVE_DECL_CEILL=1; AC_SUBST([HAVE_DECL_CEILL])
+ HAVE_DECL_COPYSIGNF=1; AC_SUBST([HAVE_DECL_COPYSIGNF])
+ HAVE_DECL_COSL=1; AC_SUBST([HAVE_DECL_COSL])
+ HAVE_DECL_EXPL=1; AC_SUBST([HAVE_DECL_EXPL])
+ HAVE_DECL_EXP2=1; AC_SUBST([HAVE_DECL_EXP2])
+ HAVE_DECL_EXP2F=1; AC_SUBST([HAVE_DECL_EXP2F])
+ HAVE_DECL_EXP2L=1; AC_SUBST([HAVE_DECL_EXP2L])
+ HAVE_DECL_EXPM1L=1; AC_SUBST([HAVE_DECL_EXPM1L])
+ HAVE_DECL_FLOORF=1; AC_SUBST([HAVE_DECL_FLOORF])
+ HAVE_DECL_FLOORL=1; AC_SUBST([HAVE_DECL_FLOORL])
+ HAVE_DECL_FREXPL=1; AC_SUBST([HAVE_DECL_FREXPL])
+ HAVE_DECL_LDEXPL=1; AC_SUBST([HAVE_DECL_LDEXPL])
+ HAVE_DECL_LOGL=1; AC_SUBST([HAVE_DECL_LOGL])
+ HAVE_DECL_LOG10L=1; AC_SUBST([HAVE_DECL_LOG10L])
+ HAVE_DECL_LOG2=1; AC_SUBST([HAVE_DECL_LOG2])
+ HAVE_DECL_LOG2F=1; AC_SUBST([HAVE_DECL_LOG2F])
+ HAVE_DECL_LOG2L=1; AC_SUBST([HAVE_DECL_LOG2L])
+ HAVE_DECL_LOGB=1; AC_SUBST([HAVE_DECL_LOGB])
+ HAVE_DECL_REMAINDER=1; AC_SUBST([HAVE_DECL_REMAINDER])
+ HAVE_DECL_REMAINDERL=1; AC_SUBST([HAVE_DECL_REMAINDERL])
+ HAVE_DECL_RINTF=1; AC_SUBST([HAVE_DECL_RINTF])
+ HAVE_DECL_ROUND=1; AC_SUBST([HAVE_DECL_ROUND])
+ HAVE_DECL_ROUNDF=1; AC_SUBST([HAVE_DECL_ROUNDF])
+ HAVE_DECL_ROUNDL=1; AC_SUBST([HAVE_DECL_ROUNDL])
+ HAVE_DECL_SINL=1; AC_SUBST([HAVE_DECL_SINL])
+ HAVE_DECL_SQRTL=1; AC_SUBST([HAVE_DECL_SQRTL])
+ HAVE_DECL_TANL=1; AC_SUBST([HAVE_DECL_TANL])
+ HAVE_DECL_TRUNC=1; AC_SUBST([HAVE_DECL_TRUNC])
+ HAVE_DECL_TRUNCF=1; AC_SUBST([HAVE_DECL_TRUNCF])
+ HAVE_DECL_TRUNCL=1; AC_SUBST([HAVE_DECL_TRUNCL])
+ REPLACE_ACOSF=0; AC_SUBST([REPLACE_ACOSF])
+ REPLACE_ASINF=0; AC_SUBST([REPLACE_ASINF])
+ REPLACE_ATANF=0; AC_SUBST([REPLACE_ATANF])
+ REPLACE_ATAN2F=0; AC_SUBST([REPLACE_ATAN2F])
+ REPLACE_CBRTF=0; AC_SUBST([REPLACE_CBRTF])
+ REPLACE_CBRTL=0; AC_SUBST([REPLACE_CBRTL])
+ REPLACE_CEIL=0; AC_SUBST([REPLACE_CEIL])
+ REPLACE_CEILF=0; AC_SUBST([REPLACE_CEILF])
+ REPLACE_CEILL=0; AC_SUBST([REPLACE_CEILL])
+ REPLACE_COSF=0; AC_SUBST([REPLACE_COSF])
+ REPLACE_COSHF=0; AC_SUBST([REPLACE_COSHF])
+ REPLACE_EXPF=0; AC_SUBST([REPLACE_EXPF])
+ REPLACE_EXPL=0; AC_SUBST([REPLACE_EXPL])
+ REPLACE_EXPM1=0; AC_SUBST([REPLACE_EXPM1])
+ REPLACE_EXPM1F=0; AC_SUBST([REPLACE_EXPM1F])
+ REPLACE_EXPM1L=0; AC_SUBST([REPLACE_EXPM1L])
+ REPLACE_EXP2=0; AC_SUBST([REPLACE_EXP2])
+ REPLACE_EXP2L=0; AC_SUBST([REPLACE_EXP2L])
+ REPLACE_FABSL=0; AC_SUBST([REPLACE_FABSL])
+ REPLACE_FLOOR=0; AC_SUBST([REPLACE_FLOOR])
+ REPLACE_FLOORF=0; AC_SUBST([REPLACE_FLOORF])
+ REPLACE_FLOORL=0; AC_SUBST([REPLACE_FLOORL])
+ REPLACE_FMA=0; AC_SUBST([REPLACE_FMA])
+ REPLACE_FMAF=0; AC_SUBST([REPLACE_FMAF])
+ REPLACE_FMAL=0; AC_SUBST([REPLACE_FMAL])
+ REPLACE_FMOD=0; AC_SUBST([REPLACE_FMOD])
+ REPLACE_FMODF=0; AC_SUBST([REPLACE_FMODF])
+ REPLACE_FMODL=0; AC_SUBST([REPLACE_FMODL])
+ REPLACE_FREXPF=0; AC_SUBST([REPLACE_FREXPF])
+ REPLACE_FREXP=0; AC_SUBST([REPLACE_FREXP])
+ REPLACE_FREXPL=0; AC_SUBST([REPLACE_FREXPL])
+ REPLACE_HUGE_VAL=0; AC_SUBST([REPLACE_HUGE_VAL])
+ REPLACE_HYPOT=0; AC_SUBST([REPLACE_HYPOT])
+ REPLACE_HYPOTF=0; AC_SUBST([REPLACE_HYPOTF])
+ REPLACE_HYPOTL=0; AC_SUBST([REPLACE_HYPOTL])
+ REPLACE_ILOGB=0; AC_SUBST([REPLACE_ILOGB])
+ REPLACE_ILOGBF=0; AC_SUBST([REPLACE_ILOGBF])
+ REPLACE_ILOGBL=0; AC_SUBST([REPLACE_ILOGBL])
+ REPLACE_ISFINITE=0; AC_SUBST([REPLACE_ISFINITE])
+ REPLACE_ISINF=0; AC_SUBST([REPLACE_ISINF])
+ REPLACE_ISNAN=0; AC_SUBST([REPLACE_ISNAN])
+ REPLACE_LDEXPL=0; AC_SUBST([REPLACE_LDEXPL])
+ REPLACE_LOG=0; AC_SUBST([REPLACE_LOG])
+ REPLACE_LOGF=0; AC_SUBST([REPLACE_LOGF])
+ REPLACE_LOGL=0; AC_SUBST([REPLACE_LOGL])
+ REPLACE_LOG10=0; AC_SUBST([REPLACE_LOG10])
+ REPLACE_LOG10F=0; AC_SUBST([REPLACE_LOG10F])
+ REPLACE_LOG10L=0; AC_SUBST([REPLACE_LOG10L])
+ REPLACE_LOG1P=0; AC_SUBST([REPLACE_LOG1P])
+ REPLACE_LOG1PF=0; AC_SUBST([REPLACE_LOG1PF])
+ REPLACE_LOG1PL=0; AC_SUBST([REPLACE_LOG1PL])
+ REPLACE_LOG2=0; AC_SUBST([REPLACE_LOG2])
+ REPLACE_LOG2F=0; AC_SUBST([REPLACE_LOG2F])
+ REPLACE_LOG2L=0; AC_SUBST([REPLACE_LOG2L])
+ REPLACE_LOGB=0; AC_SUBST([REPLACE_LOGB])
+ REPLACE_LOGBF=0; AC_SUBST([REPLACE_LOGBF])
+ REPLACE_LOGBL=0; AC_SUBST([REPLACE_LOGBL])
+ REPLACE_MODF=0; AC_SUBST([REPLACE_MODF])
+ REPLACE_MODFF=0; AC_SUBST([REPLACE_MODFF])
+ REPLACE_MODFL=0; AC_SUBST([REPLACE_MODFL])
+ REPLACE_NAN=0; AC_SUBST([REPLACE_NAN])
+ REPLACE_REMAINDER=0; AC_SUBST([REPLACE_REMAINDER])
+ REPLACE_REMAINDERF=0; AC_SUBST([REPLACE_REMAINDERF])
+ REPLACE_REMAINDERL=0; AC_SUBST([REPLACE_REMAINDERL])
+ REPLACE_RINTL=0; AC_SUBST([REPLACE_RINTL])
+ REPLACE_ROUND=0; AC_SUBST([REPLACE_ROUND])
+ REPLACE_ROUNDF=0; AC_SUBST([REPLACE_ROUNDF])
+ REPLACE_ROUNDL=0; AC_SUBST([REPLACE_ROUNDL])
+ REPLACE_SIGNBIT=0; AC_SUBST([REPLACE_SIGNBIT])
+ REPLACE_SIGNBIT_USING_BUILTINS=0; AC_SUBST([REPLACE_SIGNBIT_USING_BUILTINS])
+ REPLACE_SINF=0; AC_SUBST([REPLACE_SINF])
+ REPLACE_SINHF=0; AC_SUBST([REPLACE_SINHF])
+ REPLACE_SQRTF=0; AC_SUBST([REPLACE_SQRTF])
+ REPLACE_SQRTL=0; AC_SUBST([REPLACE_SQRTL])
+ REPLACE_TANF=0; AC_SUBST([REPLACE_TANF])
+ REPLACE_TANHF=0; AC_SUBST([REPLACE_TANHF])
+ REPLACE_TRUNC=0; AC_SUBST([REPLACE_TRUNC])
+ REPLACE_TRUNCF=0; AC_SUBST([REPLACE_TRUNCF])
+ REPLACE_TRUNCL=0; AC_SUBST([REPLACE_TRUNCL])
])
# gl_LONG_DOUBLE_VS_DOUBLE
diff --git a/m4/signbit.m4 b/m4/signbit.m4
index 73d96ea..05c99ca 100644
--- a/m4/signbit.m4
+++ b/m4/signbit.m4
@@ -1,4 +1,4 @@
-# signbit.m4 serial 19
+# signbit.m4 serial 20
dnl Copyright (C) 2007-2020 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -40,15 +40,16 @@ AC_DEFUN([gl_SIGNBIT],
esac
])
])
- dnl GCC 4.0 and newer provides three built-ins for signbit.
+ dnl GCC >= 4.0 and clang provide three built-ins for signbit.
dnl They can be used without warnings, also in C++, regardless of <math.h>.
dnl But they may expand to calls to functions, which may or may not be in
dnl libc.
- AC_CACHE_CHECK([for signbit compiler built-ins], [gl_cv_func_signbit_gcc],
+ AC_CACHE_CHECK([for signbit compiler built-ins],
+ [gl_cv_func_signbit_builtins],
[
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
-#if __GNUC__ >= 4
+#if (__GNUC__ >= 4) || (__clang_major__ >= 4)
# define signbit(x) \
(sizeof (x) == sizeof (long double) ? __builtin_signbitl (x) : \
sizeof (x) == sizeof (double) ? __builtin_signbit (x) : \
@@ -59,30 +60,30 @@ AC_DEFUN([gl_SIGNBIT],
#include <string.h>
]gl_SIGNBIT_TEST_PROGRAM
])],
- [gl_cv_func_signbit_gcc=yes],
- [gl_cv_func_signbit_gcc=no],
+ [gl_cv_func_signbit_builtins=yes],
+ [gl_cv_func_signbit_builtins=no],
[case "$host_os" in
# Guess yes on glibc systems.
- *-gnu* | gnu*) gl_cv_func_signbit_gcc="guessing yes" ;;
+ *-gnu* | gnu*) gl_cv_func_signbit_builtins="guessing yes" ;;
# Guess yes on musl systems.
- *-musl*) gl_cv_func_signbit_gcc="guessing yes" ;;
+ *-musl*) gl_cv_func_signbit_builtins="guessing yes" ;;
# Guess yes on mingw, no on MSVC.
mingw*) if test -n "$GCC"; then
- gl_cv_func_signbit_gcc="guessing yes"
+ gl_cv_func_signbit_builtins="guessing yes"
else
- gl_cv_func_signbit_gcc="guessing no"
+ gl_cv_func_signbit_builtins="guessing no"
fi
;;
# If we don't know, obey --enable-cross-guesses.
- *) gl_cv_func_signbit_gcc="$gl_cross_guess_normal" ;;
+ *) gl_cv_func_signbit_builtins="$gl_cross_guess_normal"
;;
esac
])
])
dnl Use the compiler built-ins whenever possible, because they are more
dnl efficient than the system library functions (if they exist).
- case "$gl_cv_func_signbit_gcc" in
+ case "$gl_cv_func_signbit_builtins" in
*yes)
- REPLACE_SIGNBIT_USING_GCC=1
+ REPLACE_SIGNBIT_USING_BUILTINS=1
;;
*)
case "$gl_cv_func_signbit" in
diff --git a/modules/math b/modules/math
index 0cdf885..4ccac70 100644
--- a/modules/math
+++ b/modules/math
@@ -295,7 +295,7 @@ math.h: math.in.h $(top_builddir)/config.status
$(CXXDEFS_H) $(ARG_NONNULL_H) $(
-e 's|@''REPLACE_ROUNDF''@|$(REPLACE_ROUNDF)|g' \
-e 's|@''REPLACE_ROUNDL''@|$(REPLACE_ROUNDL)|g' \
-e 's|@''REPLACE_SIGNBIT''@|$(REPLACE_SIGNBIT)|g' \
- -e
's|@''REPLACE_SIGNBIT_USING_GCC''@|$(REPLACE_SIGNBIT_USING_GCC)|g' \
+ -e
's|@''REPLACE_SIGNBIT_USING_BUILTINS''@|$(REPLACE_SIGNBIT_USING_BUILTINS)|g' \
-e 's|@''REPLACE_SINF''@|$(REPLACE_SINF)|g' \
-e 's|@''REPLACE_SINHF''@|$(REPLACE_SINHF)|g' \
-e 's|@''REPLACE_SQRTF''@|$(REPLACE_SQRTF)|g' \
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- improve clang support (9),
Bruno Haible <=