From 2e03c998518387d46c645192e7809a0e8a58508c Mon Sep 17 00:00:00 2001
From: Kevin McCarthy <kevin@8t8.us>
Date: Mon, 24 Jul 2017 11:19:05 -0700
Subject: [PATCH] Add autoconf search for clock_gettime.

It appears to be specified in POSIX.1-2001, so just abort if it's not found.

Add a missing time.h include in mutt_socket.c
---
 configure.ac  | 8 ++++++++
 mutt_socket.c | 1 +
 2 files changed, 9 insertions(+)

diff --git a/configure.ac b/configure.ac
index 4f41632a..ef408ca9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -642,6 +642,14 @@ dnl -- end socket dependencies --
 if test "$need_socket" = "yes"
 then
         AC_CHECK_HEADERS([sys/select.h])
+
+        mutt_save_LIBS="$LIBS"
+        LIBS=
+        AC_SEARCH_LIBS([clock_gettime], [rt],
+                MUTTLIBS="$MUTTLIBS $LIBS",
+                AC_MSG_ERROR([Unable to find clock_gettime function]))
+        LIBS="$mutt_save_LIBS"
+
         AC_MSG_CHECKING([for socklen_t])
         AC_EGREP_HEADER(socklen_t, sys/socket.h, AC_MSG_RESULT([yes]),
                 AC_MSG_RESULT([no])
diff --git a/mutt_socket.c b/mutt_socket.c
index d4b22973..bd585c75 100644
--- a/mutt_socket.c
+++ b/mutt_socket.c
@@ -41,6 +41,7 @@
 #ifdef HAVE_SYS_TIME_H
 #include <sys/time.h>
 #endif
+#include <time.h>
 #include <sys/socket.h>
 #ifdef HAVE_SYS_SELECT_H
 #include <sys/select.h>
-- 
2.50.1