From bf314645e665d82c65771fb0d5f58558bbe1ba87 Mon Sep 17 00:00:00 2001
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From: Khem Raj <raj.khem@gmail.com>
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Date: Mon, 26 Oct 2020 22:10:02 -0700
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Subject: [PATCH] Define __NR_futex if it does not exist
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__NR_futex is not defines by newer architectures e.g. arc, riscv32 as
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they only have 64bit variant of time_t. Glibc defines SYS_futex interface based on
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__NR_futex, since this is used in applications, such applications start
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to fail to build for these newer architectures. This patch defines a
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fallback to alias __NR_futex to __NR_futex_tim64 so SYS_futex keeps
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working
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Upstream-Status: Pending
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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---
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src/corelib/thread/qfutex_p.h | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/src/corelib/thread/qfutex_p.h b/src/corelib/thread/qfutex_p.h
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index f287b752d7..fa5307a604 100644
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--- a/src/corelib/thread/qfutex_p.h
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+++ b/src/corelib/thread/qfutex_p.h
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@@ -76,6 +76,9 @@ QT_END_NAMESPACE
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# include <unistd.h>
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# include <asm/unistd.h>
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# include <linux/futex.h>
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+# if !defined(__NR_futex) && defined(__NR_futex_time64)
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+# define __NR_futex __NR_futex_time64
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+# endif
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# define QT_ALWAYS_USE_FUTEX
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// if not defined in linux/futex.h
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--
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2.29.1
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