Fix libevent so it can compile in the few cases where sys/queue.h does not exist.

1. Remove it from libevent207.h because it is not needed.
2. Add compat to the include list so it can use queue.h when needed.

This commit was SVN r24144.

opal/mca/event/libevent207/Makefile.am

@@ -1,5 +1,6 @@
 #
 # Copyright (c) 2010      Cisco Systems, Inc.  All rights reserved.
+# Copyright (c) 2010      Oracle and/or its affiliates.  All rights reserved.
 # $COPYRIGHT$
 # 
 # Additional copyrights may follow
@@ -9,7 +10,7 @@
 
 EXTRA_DIST = .windows
 
-AM_CPPFLAGS = -I$(srcdir)/libevent -I$(srcdir)/libevent/include -I$(builddir)/libevent/include
+AM_CPPFLAGS = -I$(srcdir)/libevent -I$(srcdir)/libevent/include -I$(builddir)/libevent/include -I$(srcdir)/libevent/compat
 
 SUBDIRS = libevent
 

opal/mca/event/libevent207/libevent207.h

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2010      Cisco Systems, Inc.  All rights reserved.
+ * Copyright (c) 2010      Oracle and/or its affiliates.  All rights reserved.
  *
  * $COPYRIGHT$
  * 
@@ -29,7 +30,6 @@
 #ifdef HAVE_SYS_TIME_H
 #include <sys/time.h>
 #endif
-#include <sys/queue.h>
 #include <stdio.h>
 #include <stdlib.h>
 #ifndef WIN32