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unix: fix gcc atomics feature check

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`__atomic_load_n()` and friends were added in gcc 4.7.0 but we still
have some centos6 machines with a vintage gcc 4.4.7 from 2012 in the
CI matrix.

PR-URL: https://github.com/libuv/libuv/pull/2888
Refs: https://github.com/libuv/libuv/pull/2886
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
This commit is contained in:
Ben Noordhuis 2020-06-18 08:56:19 +02:00
parent 20756b1a9f
commit 41f57320ba
1 changed files with 1 additions and 1 deletions
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src/uv-common.h
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@ -60,7 +60,7 @@ extern int snprintf(char*, size_t, const char*, ...);
#define STATIC_ASSERT(expr) \
void uv__static_assert(int static_assert_failed[1 - 2 * !(expr)])
#ifdef __GNUC__
#if defined(__GNUC__) && (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ >= 7)
#define uv__load_relaxed(p) __atomic_load_n(p, __ATOMIC_RELAXED)
#define uv__store_relaxed(p, v) __atomic_store_n(p, v, __ATOMIC_RELAXED)
#else