From a214d131483c58ab9f1456edaafc1eb8caa8711c Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@fb.com>
Date: Fri, 16 Sep 2016 10:08:15 -0600
Subject: [PATCH] configure: harden clockid_t test

Don't assume we can assign '0' to a clockid_t type, let's just
memset it to be on the safe side.

Signed-off-by: Jens Axboe <axboe@fb.com>
---
 configure | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 14ec47e9..a24e3eff 100755
--- a/configure
+++ b/configure
@@ -798,10 +798,12 @@ echo "CLOCK_MONOTONIC_PRECISE       $clock_monotonic_precise"
 clockid_t="no"
 cat > $TMPC << EOF
 #include <stdio.h>
+#include <string.h>
 #include <time.h>
 int main(int argc, char **argv)
 {
-  clockid_t cid = 0;
+  clockid_t cid;
+  memset(&cid, 0, sizeof(cid));
   return clock_gettime(cid, NULL);
 }
 EOF
-- 
2.25.1