Upgrade to libev 4.23

.travis.yml

@@ -8,17 +8,10 @@ branches:
   only:
     - master
 
-os:
-  - linux
-  - osx
-
 rvm:
-  - 2.2
-  - 2.3.1
-  - ruby-head
   - jruby-9.1.6.0 # latest stable
-  - jruby-head
-  - rbx
+  - 2.2.2
+  - 2.3.3
 
 env:
   global:
@@ -30,10 +23,6 @@ env:
 matrix:
   fast_finish: true
   allow_failures:
-    - os:  osx # TODO: make tests pass reliably on OS X
-    - rvm: ruby-head
-    - rvm: jruby-head
-    - rvm: rbx
     - rvm: jruby-9.1.6.0
       env: NIO4R_PURE=true
 

README.md

@@ -199,5 +199,5 @@ to maintain a large codebase.
 Copyright (c) 2011-2016 Tony Arcieri. Distributed under the MIT License.
 See LICENSE.txt for further details.
 
-Includes libev 4.22. Copyright (c) 2007-2015 Marc Alexander Lehmann.
+Includes libev 4.23. Copyright (c) 2007-2016 Marc Alexander Lehmann.
 Distributed under the BSD license. See ext/libev/LICENSE for details.

ext/libev/Changes

@@ -1,18 +1,9 @@
 Revision history for libev, a high-performance and full-featured event loop.
 
-TODO: ev_loop_wakeup
-TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone)
-TODO: faq, process a thing in each iteration
-TODO: dbeugging tips, ev_verify, ev_init twice
-TODO: ev_break for immediate exit (EVBREAK_NOW?)
-TODO: ev_feed_child_event
-TODO: document the special problem of signals around fork.
-TODO: store pid for each signal
-TODO: document file descriptor usage per loop
-TODO: store loop pid_t and compare isndie signal handler,store 1 for same, 2 for differign pid, clean up in loop_fork
-TODO: embed watchers need updating when fd changes
-TODO: document portability requirements for atomic pointer access
-TODO: document requirements for function pointers and calling conventions.
+4.23 Wed Nov 16 18:23:41 CET 2016
+	- move some declarations at the beginning to help certain retarded
+          microsoft compilers, even though their documentation claims
+          otherwise (reported by Ruslan Osmanov).
 
 4.22 Sun Dec 20 22:11:50 CET 2015
 	- when epoll detects unremovable fds in the fd set, rebuild