forked from mirrors/nixpkgs
55 lines
1.8 KiB
Diff
55 lines
1.8 KiB
Diff
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From 917331c88bd2afce0cf0fdbcab55a64541b5bcf0 Mon Sep 17 00:00:00 2001
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From: "David L. Jones" <dlj@google.com>
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Date: Fri, 10 Feb 2017 01:27:42 +0000
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Subject: [PATCH] Check for musl-libc's max_align_t in addition to other
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variants.
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Summary:
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Libcxx will define its own max_align_t when it is not available. However, the
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availability checks today only check for Clang's definition and GCC's
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definition. In particular, it does not check for musl's definition, which is the
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same as GCC's but guarded with a different macro.
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Reviewers: mclow.lists, EricWF
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Reviewed By: EricWF
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Subscribers: chandlerc, cfe-commits
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Differential Revision: https://reviews.llvm.org/D28478
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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@294683 91177308-0d34-0410-b5e6-96231b3b80d8
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---
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include/cstddef | 3 ++-
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include/stddef.h | 3 ++-
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2 files changed, 4 insertions(+), 2 deletions(-)
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diff --git a/include/cstddef b/include/cstddef
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index edd106c00..103898b7d 100644
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--- a/include/cstddef
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+++ b/include/cstddef
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@@ -48,7 +48,8 @@ _LIBCPP_BEGIN_NAMESPACE_STD
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using ::ptrdiff_t;
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using ::size_t;
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-#if defined(__CLANG_MAX_ALIGN_T_DEFINED) || defined(_GCC_MAX_ALIGN_T)
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+#if defined(__CLANG_MAX_ALIGN_T_DEFINED) || defined(_GCC_MAX_ALIGN_T) || \
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+ defined(__DEFINED_max_align_t)
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// Re-use the compiler's <stddef.h> max_align_t where possible.
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using ::max_align_t;
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#else
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diff --git a/include/stddef.h b/include/stddef.h
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index 8841bbea2..faf8552d8 100644
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--- a/include/stddef.h
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+++ b/include/stddef.h
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@@ -53,7 +53,8 @@ using std::nullptr_t;
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}
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// Re-use the compiler's <stddef.h> max_align_t where possible.
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-#if !defined(__CLANG_MAX_ALIGN_T_DEFINED) && !defined(_GCC_MAX_ALIGN_T)
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+#if !defined(__CLANG_MAX_ALIGN_T_DEFINED) && !defined(_GCC_MAX_ALIGN_T) && \
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+ !defined(__DEFINED_max_align_t)
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typedef long double max_align_t;
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#endif
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