From 1118b1912916924bbfa3fd4dced9dfed01fbf0e0 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Mon, 9 Mar 2020 09:44:33 -0700
Subject: [PATCH] configure: Check for clock_gettime seprately from
 __NR_clock_gettime

This helps prioritize using clock_gettime API from libc over syscall
since direct use of __NR_clock_gettime is not time64-safe

Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 configure.ac | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

--- a/configure.ac
+++ b/configure.ac
@@ -125,6 +125,10 @@ case $host in
 esac
 
 AC_CHECK_HEADERS(syscall.h sys/syscall.h mach/mach_time.h)
+
+AC_MSG_CHECKING([for clock_gettime])
+AC_SEARCH_LIBS([clock_gettime], [rt], [AC_DEFINE([HAVE_CLOCK_GETTIME], [1], [use clock_gettime])],)
+
 AC_MSG_CHECKING([for __NR_clock_gettime syscall])
 AC_COMPILE_IFELSE(
     [AC_LANG_PROGRAM(
@@ -143,7 +147,6 @@ AC_COMPILE_IFELSE(
     ],
     [
         AC_MSG_RESULT([no])
-        AC_SEARCH_LIBS([clock_gettime], [rt], [AC_DEFINE([HAVE_CLOCK_GETTIME], [1], [use clock_gettime])],)
     ])
 
 AC_CHECK_HEADER(linux/netlink.h,
