From ffaaf8ab9331668c664c0d6084a90a8a29cf3285 Mon Sep 17 00:00:00 2001
From: Brian 'Redbeard' Harrington <redbeard@dead-city.org>
Date: Thu, 21 Jan 2021 19:10:48 -0800
Subject: [PATCH] configure: ESX does not have timerfd support

Running fio on an ESX host fails due to the lack of support for file
descriptor based notifications of timer expiration.  This change
bypasses patch 696378af added to increase timer accuracy.

Signed-off-by: Brian 'Redbeard' Harrington <redbeard@redhat.com>
---
 configure | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 1306f1b3..e6e33d7f 100755
--- a/configure
+++ b/configure
@@ -2695,6 +2695,7 @@ print_config "Windows PDB generation" "$pdb"
 ##########################################
 # check for timerfd support
 timerfd_create="no"
+if test "$esx" != "yes" ; then
 cat > $TMPC << EOF
 #include <sys/time.h>
 #include <sys/timerfd.h>
@@ -2704,8 +2705,9 @@ int main(int argc, char **argv)
 	return timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK);
 }
 EOF
-if compile_prog "" "" "timerfd_create"; then
-  timerfd_create="yes"
+  if compile_prog "" "" "timerfd_create"; then
+    timerfd_create="yes"
+  fi
 fi
 print_config "timerfd_create" "$timerfd_create"
 
-- 
2.25.1