Mesa (main): src/util/futex.h: fix build on 32-bit architectures using 64-bit time_t

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Module: Mesa
Branch: main
Commit: 7d87478124061915582412ba410759afe863d679
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7d87478124061915582412ba410759afe863d679

Author: Fabrice Fontaine <fontaine.fabrice at gmail.com>
Date:   Sat Aug 21 17:55:33 2021 +0200

src/util/futex.h: fix build on 32-bit architectures using 64-bit time_t

Fix the following build failure on 32-bit architectures using 64-bit
time_t (e.g. riscv32):

../src/util/futex.h: In function 'sys_futex':
../src/util/futex.h:39:19: error: 'SYS_futex' undeclared (first use in this function); did you mean 'sys_futex'?
   39 |    return syscall(SYS_futex, addr1, op, val1, timeout, addr2, val3);
      |                   ^~~~~~~~~
      |                   sys_futex

Fixes:
 - http://autobuild.buildroot.org/results/692700a5f967760a0b8cd358b1712f1d5a7b681e

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12496>

---

 src/util/futex.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/util/futex.h b/src/util/futex.h
index 43097f4cd5b..221eda9db0c 100644
--- a/src/util/futex.h
+++ b/src/util/futex.h
@@ -34,6 +34,10 @@
 #include <sys/syscall.h>
 #include <sys/time.h>
 
+#ifndef SYS_futex
+#define SYS_futex SYS_futex_time64
+#endif
+
 static inline long sys_futex(void *addr1, int op, int val1, const struct timespec *timeout, void *addr2, int val3)
 {
    return syscall(SYS_futex, addr1, op, val1, timeout, addr2, val3);