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jemalloc_helper: Limit the mm_malloc.h hack to glibc on linux (#8425)

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Summary:
Original author: kraj (https://github.com/facebook/rocksdb/issues/8413)

We have a hack to ensure clang's `posix_memalign()` hack works to be
compatible with glibc's `posix_memalign()` declaration. Our side of the
hack is irrelevant and should be omitted when not using glibc.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8425

Reviewed By: mrambacher

Differential Revision: D29239029

Pulled By: ajkr

fbshipit-source-id: 12b900f50a4823b880a6558f25d8590dbfc0aa26
This commit is contained in:
Andrew Kryczka 2021-06-29 08:38:57 -07:00 committed by Facebook GitHub Bot
parent 390c5246d2
commit bac399449d
1 changed files with 1 additions and 1 deletions
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2
port/jemalloc_helper.h
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@ -5,7 +5,7 @@
#pragma once #pragma once
#if defined(__clang__) #if defined(__clang__) && defined(__GLIBC__)
// glibc's `posix_memalign()` declaration specifies `throw()` while clang's // glibc's `posix_memalign()` declaration specifies `throw()` while clang's
// declaration does not. There is a hack in clang to make its re-declaration // declaration does not. There is a hack in clang to make its re-declaration
// compatible with glibc's if they are declared consecutively. That hack breaks // compatible with glibc's if they are declared consecutively. That hack breaks