1 files changed, 36 insertions, 0 deletions

diff --git a/recipes-qt/qt5/qtbase/0019-Define-__NR_futex-if-it-does-not-exist.patch b/recipes-qt/qt5/qtbase/0019-Define-__NR_futex-if-it-does-not-exist.patch
new file mode 100644
index 00000000..2accb08e
--- /dev/null
+++ b/recipes-qt/qt5/qtbase/0019-Define-__NR_futex-if-it-does-not-exist.patch
@@ -0,0 +1,36 @@
+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
+