From 6d42b6697bc5293f77999df5552bbfa9760bd167 Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Thu, 9 Oct 2014 21:18:24 +0900
Subject: [PATCH] examples: Disable tiny-nghttpd if timerfd_create is not
 available

---
 configure.ac         | 10 +++++++++-
 examples/Makefile.am |  4 ++--
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 21cc32b5..f78aef77 100644
--- a/configure.ac
+++ b/configure.ac
@@ -477,10 +477,18 @@ AC_CHECK_FUNCS([ \
   timegm \
 ])
 
+# timerfd_create was added in linux kernel 2.6.25
+
+AC_CHECK_FUNC([timerfd_create],
+              [have_timerfd_create=yes], [have_timerfd_create=no])
+
+
 # Checks for epoll availability, primarily for examples/tiny-nghttpd
 AX_HAVE_EPOLL([have_epoll=yes], [have_epoll=no])
 
-AM_CONDITIONAL([HAVE_EPOLL], [ test "x${have_epoll}" = "xyes" ])
+AM_CONDITIONAL([ENABLE_TINY_NGHTTPD],
+               [ test "x${have_epoll}" = "xyes" &&
+                 test "x${have_timerfd_create}" = "xyes"])
 
 dnl Windows library for winsock2
 case "${host}" in
diff --git a/examples/Makefile.am b/examples/Makefile.am
index 11715c60..0dc4dfb7 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -49,13 +49,13 @@ libevent_server_SOURCES = libevent-server.c
 
 deflate_SOURCES = deflate.c
 
-if HAVE_EPOLL
+if ENABLE_TINY_NGHTTPD
 
 noinst_PROGRAMS += tiny-nghttpd
 
 tiny_nghttpd_SOURCES = tiny-nghttpd.c
 
-endif # HAVE_EPOLL
+endif # ENABLE_TINY_NGHTTPD
 
 if ENABLE_ASIO_LIB