ibrahimkaraguzel
55 lines
2.0 KiB
Diff
55 lines
2.0 KiB
Diff
From a332112317450457c715675686386ec81214b863 Mon Sep 17 00:00:00 2001
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From: Axel Huebl <axel.huebl@plasma.ninja>
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Date: Fri, 18 Dec 2015 10:27:04 +0100
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Subject: [PATCH] Fix Trac 11852: GCC & CUDA __float128
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Fix trac issue
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https://svn.boost.org/trac/boost/ticket/11852
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Similar to
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https://svn.boost.org/trac/boost/ticket/8048
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`__float128` is still unsupported when compiling with nvcc
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(tested with `CUDA 7.5.18`). First noticed with the latest
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release (`1.60.0`) and `GCC 4.8.5` but should affect all
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previous releases depending on used modules.
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In my case, I triggered it with the components
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`program_options regex filesystem system thread math_tr1`
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enabled .
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---
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include/boost/config/compiler/gcc.hpp | 8 ++++++--
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1 file changed, 6 insertions(+), 2 deletions(-)
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diff --git a/include/boost/config/compiler/gcc.hpp b/include/boost/config/compiler/gcc.hpp
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index d9dd59d..8683dbd 100644
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--- a/include/boost/config/compiler/gcc.hpp
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+++ b/include/boost/config/compiler/gcc.hpp
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@@ -134,7 +134,7 @@
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// Recent GCC versions have __int128 when in 64-bit mode.
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//
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// We disable this if the compiler is really nvcc as it
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-// doesn't actually support __int128 as of CUDA_VERSION=5000
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+// doesn't actually support __int128 as of CUDA_VERSION=7500
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// even though it defines __SIZEOF_INT128__.
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// See https://svn.boost.org/trac/boost/ticket/8048
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// Only re-enable this for nvcc if you're absolutely sure
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@@ -148,12 +148,16 @@
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// include a std lib header to detect this - not ideal, but we'll
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// be including <cstddef> later anyway when we select the std lib.
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//
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+// Nevertheless, as of CUDA 7.5, using __float128 with the host
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+// compiler is still not supported.
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+// See https://svn.boost.org/trac/boost/ticket/11852
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+//
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#ifdef __cplusplus
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#include <cstddef>
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#else
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#include <stddef.h>
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#endif
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-#if defined(_GLIBCXX_USE_FLOAT128) && !defined(__STRICT_ANSI__)
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+#if defined(_GLIBCXX_USE_FLOAT128) && !defined(__STRICT_ANSI__) && !defined(__CUDACC__)
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# define BOOST_HAS_FLOAT128
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#endif
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