Disable aligned new/delete on Apple platforms without posix_memalign
Summary:
This patch disables the aligned new/delet overloads on Apple platforms without `posix_memalign`. This fixes libc++.dylib build regressions on such platforms.
This fixes http://llvm.org/PR31448.
This patch should also be merged into the 4.0 release branch
Reviewers: mclow.lists, rsmith, dexonsmith, jeremyhu
Reviewed By: mclow.lists
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D28931
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@292564 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/__config b/include/__config
index f214c7b..63f477b 100644
--- a/include/__config
+++ b/include/__config
@@ -848,6 +848,18 @@
#define _DECLARE_C99_LDBL_MATH 1
#endif
+#if defined(__APPLE__)
+# if !defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \
+ defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__)
+# define __MAC_OS_X_VERSION_MIN_REQUIRED __ENVIROMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
+# endif
+# if defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
+# if __MAC_OS_X_VERSION_MIN_REQUIRED < 1060
+# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
+# endif
+# endif
+#endif // defined(__APPLE__)
+
#if defined(__APPLE__) || defined(__FreeBSD__)
#define _LIBCPP_HAS_DEFAULTRUNELOCALE
#endif
