8c91a32be5
Backport patch from upstream [1] to fix build issues with toolchains not
providing libquadmath, but still supporting __float128.
Fixes:
http://autobuild.buildroot.net/results/fcc/fccb40e7b05b84275cfe36a890cedbbaaaa4f953/
http://autobuild.buildroot.net/results/cfc/cfcc6c44d2225b9baf0fd92d3cfba4922bfb248b/
http://autobuild.buildroot.net/results/ab1/ab1a5aceedb7f9edcd5536b601f1ffb66c5fe1e8/
http://autobuild.buildroot.net/results/1ed/1ed3c1ae1e31325b49dd05c1f616637bb5e6382d/
http://autobuild.buildroot.net/results/9e5/9e53a5aff9966c6f26e705c91d13692107452feb/
and many more.
Backported from: 74ff2db959c5fa75bec770c41ed2951a740fe936
[1]
74ff2db959
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
92 lines
3.1 KiB
Diff
92 lines
3.1 KiB
Diff
From 74ff2db959c5fa75bec770c41ed2951a740fe936 Mon Sep 17 00:00:00 2001
|
|
From: jzmaddock <jz.maddock@gmail.com>
|
|
Date: Fri, 1 Jan 2016 16:49:48 +0000
|
|
Subject: [PATCH] Change <quadmath.h> config to not use it at all if we don't
|
|
have __has_include as GCC may be configured with --disable-libquadmath but
|
|
still signal that it supports __float128
|
|
|
|
Backported from: 74ff2db959c5fa75bec770c41ed2951a740fe936
|
|
|
|
[Jörg Krause: adjust pathes to match sourceforge release tarball]
|
|
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
|
|
|
|
---
|
|
boost/math/special_functions/fpclassify.hpp | 16 +++++++++++++---
|
|
boost/math/tools/config.hpp | 12 ------------
|
|
2 files changed, 13 insertions(+), 15 deletions(-)
|
|
|
|
diff --git a/boost/math/special_functions/fpclassify.hpp b/boost/math/special_functions/fpclassify.hpp
|
|
index 0a4e1ac..58fad13 100644
|
|
--- a/boost/math/special_functions/fpclassify.hpp
|
|
+++ b/boost/math/special_functions/fpclassify.hpp
|
|
@@ -81,7 +81,12 @@ is used.
|
|
#include <float.h>
|
|
#endif
|
|
#ifdef BOOST_MATH_USE_FLOAT128
|
|
+#ifdef __has_include
|
|
+#if __has_include("quadmath.h")
|
|
#include "quadmath.h"
|
|
+#define BOOST_MATH_HAS_QUADMATH_H
|
|
+#endif
|
|
+#endif
|
|
#endif
|
|
|
|
#ifdef BOOST_NO_STDC_NAMESPACE
|
|
@@ -124,9 +129,14 @@ inline bool is_nan_helper(T, const boost::false_type&)
|
|
{
|
|
return false;
|
|
}
|
|
-#ifdef BOOST_MATH_USE_FLOAT128
|
|
+#if defined(BOOST_MATH_USE_FLOAT128)
|
|
+#if defined(BOOST_MATH_HAS_QUADMATH_H)
|
|
inline bool is_nan_helper(__float128 f, const boost::true_type&) { return ::isnanq(f); }
|
|
inline bool is_nan_helper(__float128 f, const boost::false_type&) { return ::isnanq(f); }
|
|
+#else
|
|
+inline bool is_nan_helper(__float128 f, const boost::true_type&) { return ::isnan(static_cast<double>(f)); }
|
|
+inline bool is_nan_helper(__float128 f, const boost::false_type&) { return ::isnan(static_cast<double>(f)); }
|
|
+#endif
|
|
#endif
|
|
}
|
|
|
|
@@ -519,7 +529,7 @@ inline bool (isinf)(long double x)
|
|
return detail::isinf_impl(static_cast<value_type>(x), method());
|
|
}
|
|
#endif
|
|
-#ifdef BOOST_MATH_USE_FLOAT128
|
|
+#if defined(BOOST_MATH_USE_FLOAT128) && defined(BOOST_MATH_HAS_QUADMATH_H)
|
|
template<>
|
|
inline bool (isinf)(__float128 x)
|
|
{
|
|
@@ -611,7 +621,7 @@ inline bool (isnan)(long double x)
|
|
return detail::isnan_impl(x, method());
|
|
}
|
|
#endif
|
|
-#ifdef BOOST_MATH_USE_FLOAT128
|
|
+#if defined(BOOST_MATH_USE_FLOAT128) && defined(BOOST_MATH_HAS_QUADMATH_H)
|
|
template<>
|
|
inline bool (isnan)(__float128 x)
|
|
{
|
|
diff --git a/boost/math/tools/config.hpp b/boost/math/tools/config.hpp
|
|
index ffd0ab4..75d29b6 100644
|
|
--- a/boost/math/tools/config.hpp
|
|
+++ b/boost/math/tools/config.hpp
|
|
@@ -265,18 +265,6 @@
|
|
# define BOOST_MATH_INT_VALUE_SUFFIX(RV, SUF) RV##SUF
|
|
#endif
|
|
//
|
|
-// Test whether to support __float128, if we don't have quadmath.h then this can't currently work:
|
|
-//
|
|
-#ifndef BOOST_MATH_USE_FLOAT128
|
|
-#ifdef __has_include
|
|
-#if ! __has_include("quadmath.h")
|
|
-#define BOOST_MATH_DISABLE_FLOAT128
|
|
-#endif
|
|
-#elif !defined(BOOST_ARCH_X86)
|
|
-#define BOOST_MATH_DISABLE_FLOAT128
|
|
-#endif
|
|
-#endif
|
|
-//
|
|
// And then the actual configuration:
|
|
//
|
|
#if defined(_GLIBCXX_USE_FLOAT128) && defined(BOOST_GCC) && !defined(__STRICT_ANSI__) \
|