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$NetBSD: patch-mfbt_Attributes.h,v 1.1 2014/07/24 14:57:12 ryoon Exp $
--- mfbt/Attributes.h.orig 2014-07-17 01:45:32.000000000 +0000
+++ mfbt/Attributes.h
@@ -54,6 +54,9 @@
# ifndef __has_extension
# define __has_extension __has_feature /* compatibility, for older versions of clang */
# endif
+# if __has_extension(cxx_alignas)
+# define MOZ_HAVE_CXX11_ALIGNAS
+# endif
# if __has_extension(cxx_constexpr)
# define MOZ_HAVE_CXX11_CONSTEXPR
# endif
@@ -75,6 +78,9 @@
# endif
#elif defined(__GNUC__)
# if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
+# if MOZ_GCC_VERSION_AT_LEAST(4, 8, 0)
+# define MOZ_HAVE_CXX11_ALIGNAS
+# endif
# if MOZ_GCC_VERSION_AT_LEAST(4, 7, 0)
# define MOZ_HAVE_CXX11_OVERRIDE
# define MOZ_HAVE_CXX11_FINAL final
@@ -96,6 +102,7 @@
# define MOZ_HAVE_NORETURN __attribute__((noreturn))
#elif defined(_MSC_VER)
# if _MSC_VER >= 1800
+# define MOZ_HAVE_CXX11_ALIGNAS
# define MOZ_HAVE_CXX11_DELETE
# endif
# if _MSC_VER >= 1700
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