From da60629201ff7a781bbf06107bb5f65afa919533 Mon Sep 17 00:00:00 2001
From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Fri, 16 Feb 2018 09:41:22 +0100
Subject: [PATCH] configure: improve check for timestamping options

The socket.h header provided by musl doesn't seem to include the kernel
headers and is missing SCM_TIMESTAMPING_PKTINFO, which causes the
Linux-specific code in chrony to fail to build.
---
 configure | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure b/configure
index 7b57992..a08dda7 100755
--- a/configure
+++ b/configure
@@ -700,6 +700,7 @@ then
     struct scm_ts_pktinfo pktinfo;
     pktinfo.if_index = pktinfo.pkt_length = 0;
     return pktinfo.if_index + pktinfo.pkt_length + HWTSTAMP_FILTER_NTP_ALL +
+           SCM_TIMESTAMPING_PKTINFO +
            SOF_TIMESTAMPING_OPT_PKTINFO + SOF_TIMESTAMPING_OPT_TX_SWHW;'; then
     add_def HAVE_LINUX_TIMESTAMPING_RXFILTER_NTP 1
     add_def HAVE_LINUX_TIMESTAMPING_OPT_PKTINFO 1