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Workaround for older versions of clang.

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This commit is contained in:
Edward Diener
2013-12-16 08:08:53 -05:00
parent c75b0e9d8b
commit 86ca46f142
1 changed files with 8 additions and 0 deletions
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8
include/boost/config/compiler/clang.hpp
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@ -10,6 +10,14 @@
#define BOOST_HAS_PRAGMA_ONCE #define BOOST_HAS_PRAGMA_ONCE
// When compiling with clang before __has_extension was defined,
// even if one writes 'defined(__has_extension) && __has_extension(xxx)',
// clang reports a compiler error. So the only workaround found is:
#ifndef __has_extension
#define __has_extension __has_feature
#endif
#if !__has_feature(cxx_exceptions) && !defined(BOOST_NO_EXCEPTIONS) #if !__has_feature(cxx_exceptions) && !defined(BOOST_NO_EXCEPTIONS)
# define BOOST_NO_EXCEPTIONS # define BOOST_NO_EXCEPTIONS
#endif #endif