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| author | Bruno Haible <bruno@clisp.org> | 2020-05-23 21:17:22 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2020-05-23 21:17:22 +0200 |
| commit | 665e4118cbfc611e1e9b1767f0817a5903e29e8b (patch) | |
| tree | 123fed9d199763e779bb03c891014ecac875bc6c /m4 | |
| parent | 3cf2dc197941c8a162c338de008450a95a5bcc38 (diff) | |
| download | gnulib-665e4118cbfc611e1e9b1767f0817a5903e29e8b.tar.gz | |
isnanf, isnanl, isnan: Don't use nonexistent builtins with clang.
* m4/isnanf.m4 (gl_HAVE_ISNANF_NO_LIBM, gl_HAVE_ISNANF_IN_LIBM,
gl_ISNANF_WORKS): Don't use __builtin_isnanf on clang versions that
don't have it.
* m4/isnanl.m4 (gl_HAVE_ISNANL_NO_LIBM, gl_HAVE_ISNANL_IN_LIBM,
gl_FUNC_ISNANL_WORKS): Don't use __builtin_isnanl on clang versions that
don't have it.
* lib/isnanf-nolibm.h (__has_builtin): New macro.
(isnanf): Don't use __builtin_isnanf on clang versions that don't have
it.
* lib/isnanl-nolibm.h (__has_builtin): New macro.
(isnanl): Don't use __builtin_isnanl on clang versions that don't have
it.
* lib/math.in.h (__has_builtin): New macro.
(isnanf): Don't use __builtin_isnanf on clang versions that don't have
it.
(isnanl): Don't use __builtin_isnanl on clang versions that don't have
it.
(isnan): Don't use the builtins on clang versions that don't have
__builtin_isnanf and __builtin_isnanl.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/isnanf.m4 | 17 | ||||
| -rw-r--r-- | m4/isnanl.m4 | 17 |
2 files changed, 26 insertions, 8 deletions
diff --git a/m4/isnanf.m4 b/m4/isnanf.m4 index 4e9fb48652..7dd67bd8b4 100644 --- a/m4/isnanf.m4 +++ b/m4/isnanf.m4 @@ -1,4 +1,4 @@ -# isnanf.m4 serial 15 +# isnanf.m4 serial 16 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, @@ -74,7 +74,10 @@ AC_DEFUN([gl_HAVE_ISNANF_NO_LIBM], AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include <math.h> - #if __GNUC__ >= 4 + #ifndef __has_builtin + # define __has_builtin(name) 0 + #endif + #if __GNUC__ >= 4 && (!defined __clang__ || __has_builtin (__builtin_isnanf)) # undef isnanf # define isnanf(x) __builtin_isnanf ((float)(x)) #elif defined isnan @@ -99,7 +102,10 @@ AC_DEFUN([gl_HAVE_ISNANF_IN_LIBM], AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include <math.h> - #if __GNUC__ >= 4 + #ifndef __has_builtin + # define __has_builtin(name) 0 + #endif + #if __GNUC__ >= 4 && (!defined __clang__ || __has_builtin (__builtin_isnanf)) # undef isnanf # define isnanf(x) __builtin_isnanf ((float)(x)) #elif defined isnan @@ -127,7 +133,10 @@ AC_DEFUN([gl_ISNANF_WORKS], AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include <math.h> -#if __GNUC__ >= 4 +#ifndef __has_builtin +# define __has_builtin(name) 0 +#endif +#if __GNUC__ >= 4 && (!defined __clang__ || __has_builtin (__builtin_isnanf)) # undef isnanf # define isnanf(x) __builtin_isnanf ((float)(x)) #elif defined isnan diff --git a/m4/isnanl.m4 b/m4/isnanl.m4 index 9874418a69..75d5462975 100644 --- a/m4/isnanl.m4 +++ b/m4/isnanl.m4 @@ -1,4 +1,4 @@ -# isnanl.m4 serial 20 +# isnanl.m4 serial 21 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, @@ -68,7 +68,10 @@ AC_DEFUN([gl_HAVE_ISNANL_NO_LIBM], AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include <math.h> - #if __GNUC__ >= 4 + #ifndef __has_builtin + # define __has_builtin(name) 0 + #endif + #if __GNUC__ >= 4 && (!defined __clang__ || __has_builtin (__builtin_isnanl)) # undef isnanl # define isnanl(x) __builtin_isnanl ((long double)(x)) #elif defined isnan @@ -93,7 +96,10 @@ AC_DEFUN([gl_HAVE_ISNANL_IN_LIBM], AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include <math.h> - #if __GNUC__ >= 4 + #ifndef __has_builtin + # define __has_builtin(name) 0 + #endif + #if __GNUC__ >= 4 && (!defined __clang__ || __has_builtin (__builtin_isnanl)) # undef isnanl # define isnanl(x) __builtin_isnanl ((long double)(x)) #elif defined isnan @@ -123,7 +129,10 @@ AC_DEFUN([gl_FUNC_ISNANL_WORKS], #include <float.h> #include <limits.h> #include <math.h> -#if __GNUC__ >= 4 +#ifndef __has_builtin +# define __has_builtin(name) 0 +#endif +#if __GNUC__ >= 4 && (!defined __clang__ || __has_builtin (__builtin_isnanl)) # undef isnanl # define isnanl(x) __builtin_isnanl ((long double)(x)) #elif defined isnan |