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Work around ABI break caused by C++17 inline variables.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@274403 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2016-07-01 23:22:25 +00:00
parent ed33ed8023
commit 1eb8739a33
1 changed files with 8 additions and 1 deletions
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9
src/chrono.cpp
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@@ -6,7 +6,7 @@
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#define _LIBCPP_BUILDING_CHRONO
#include "chrono"
#include "cerrno" // errno
#include "system_error" // __throw_system_error
@@ -32,6 +32,9 @@ namespace chrono
// system_clock
const bool system_clock::is_steady;
// Make is_steady non-discardable in C++17
// See PR28395 (https://llvm.org/bugs/show_bug.cgi?id=28395)
static const bool& __is_steady_force_use1 __attribute__((used)) = system_clock::is_steady;
system_clock::time_point
system_clock::now() _NOEXCEPT
@@ -68,6 +71,10 @@ system_clock::from_time_t(time_t t) _NOEXCEPT
// instead.
const bool steady_clock::is_steady;
// Make is_steady non-discardable in C++17
// See PR28395 (https://llvm.org/bugs/show_bug.cgi?id=28395)
static const bool& __is_steady_force_use2 __attribute__((used)) = steady_clock::is_steady;
#ifdef CLOCK_MONOTONIC