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