2 files changed, 30 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index f64e18f4..69e672ea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -293,6 +293,18 @@ if test "$enable_epoll" != "no"; then
   fi
 fi
 
+if test "x$enable_epoll" = "xyes"; then
+  AC_CACHE_CHECK([for epoll_create1()], [mhd_cv_have_epoll_create1], [
+    AC_LINK_IFELSE([
+      AC_LANG_PROGRAM([[#include <sys/epoll.h>]], [[
+int fd;
+fd = epoll_create1(EPOLL_CLOEXEC);]])],
+      [mhd_cv_have_epoll_create1=yes],
+      [mhd_cv_have_epoll_create1=no])])
+  AS_IF([test "x$mhd_cv_have_epoll_create1" = "xyes"],[
+    AC_DEFINE([[HAVE_EPOLL_CREATE1]], [[1]], [Define if you have epoll_create1 function.])])
+fi
+
 if test "x$HAVE_POSIX_THREADS" = "xyes"; then
   # Check for pthread_setname_np()
   SAVE_LIBS="$LIBS"
diff --git a/src/microhttpd/daemon.c b/src/microhttpd/daemon.c
index 314dabca..dbe0cb58 100644
--- a/src/microhttpd/daemon.c
+++ b/src/microhttpd/daemon.c
@@ -3333,7 +3333,11 @@ setup_epoll_to_listen (struct MHD_Daemon *daemon)
 {
   struct epoll_event event;
 
+#ifdef HAVE_EPOLL_CREATE1
   daemon->epoll_fd = epoll_create1 (EPOLL_CLOEXEC);
+#else  /* !HAVE_EPOLL_CREATE1 */
+  daemon->epoll_fd = epoll_create (MAX_EVENTS);
+#endif /* !HAVE_EPOLL_CREATE1 */
   if (-1 == daemon->epoll_fd)
     {
 #if HAVE_MESSAGES
@@ -3343,6 +3347,20 @@ setup_epoll_to_listen (struct MHD_Daemon *daemon)
 #endif
       return MHD_NO;
     }
+#ifndef HAVE_EPOLL_CREATE1
+  else
+    {
+      int fdflags = fcntl (daemon->epoll_fd, F_GETFD);
+      if (0 > fdflags || 0 > fcntl (daemon->epoll_fd, F_SETFD, fdflags | FD_CLOEXEC))
+        {
+#if HAVE_MESSAGES
+          MHD_DLOG (daemon,
+                    "Failed to change flags on epoll fd: %s\n",
+                    MHD_socket_last_strerr_ ());
+#endif /* HAVE_MESSAGES */
+        }
+    }
+#endif /* !HAVE_EPOLL_CREATE1 */
   if (0 == EPOLL_CLOEXEC)
     make_nonblocking_noninheritable (daemon,
                                      daemon->epoll_fd);