upgrade libev to 4.15

This should fix #361.

libev/Changes

@@ -6,10 +6,14 @@ 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 portbaility requirements for atomic pointer access
+
+4.15 Fri Mar  1 12:04:50 CET 2013
         - destroying a non-default loop would stop the global waitpid
           watcher (Denis Bilenko).
 	- queueing pending watchers of higher priority from a watcher now invokes
@@ -32,6 +36,8 @@ TODO: document file descriptor usage per loop
 	- (ecb) add memory fence support for gcc-alpha (Christian Weisgerber).
         - work around some kernels losing file descriptors by leaking
           the kqueue descriptor in the child.
+        - work around linux inotify not reporting IN_ATTRIB changes for directories
+          in many cases.
         - include sys/syscall.h instead of plain syscall.h.
         - check for io watcher loops in ev_verify, check for the most
           common reported usage bug in ev_io_start.
@@ -46,6 +52,13 @@ TODO: document file descriptor usage per loop
         - rewrite the async/signal pipe logic to always keep a valid fd, which
           simplifies (and hopefuly correctifies :) the race checking
           on fork, at the cost of one extra fd.
+        - add fat, msdos, jffs2, ramfs, ntfs and btrfs to the list of
+          inotify-supporting filesystems.
+        - move orig_CFLAGS assignment to after AC_INIT, as newer autoconf
+          versions ignore it before
+          (https://bugzilla.redhat.com/show_bug.cgi?id=908096).
+        - add some untested android support.
+        - enum expressions must be of type int (reported by Juan Pablo L).
 
 4.11 Sat Feb  4 19:52:39 CET 2012
 	- INCOMPATIBLE CHANGE: ev_timer_again now clears the pending status, as

libev/ev.h

@@ -205,33 +205,33 @@ struct ev_loop;
 /*****************************************************************************/
 
 #define EV_VERSION_MAJOR 4
-#define EV_VERSION_MINOR 11
+#define EV_VERSION_MINOR 15
 
 /* eventmask, revents, events... */
 enum {
-  EV_UNDEF    = 0xFFFFFFFF, /* guaranteed to be invalid */
-  EV_NONE     =       0x00, /* no events */
-  EV_READ     =       0x01, /* ev_io detected read will not block */
-  EV_WRITE    =       0x02, /* ev_io detected write will not block */
-  EV__IOFDSET =       0x80, /* internal use only */
-  EV_IO       =    EV_READ, /* alias for type-detection */
-  EV_TIMER    = 0x00000100, /* timer timed out */
+  EV_UNDEF    = (int)0xFFFFFFFF, /* guaranteed to be invalid */
+  EV_NONE     =            0x00, /* no events */
+  EV_READ     =            0x01, /* ev_io detected read will not block */
+  EV_WRITE    =            0x02, /* ev_io detected write will not block */
+  EV__IOFDSET =            0x80, /* internal use only */
+  EV_IO       =         EV_READ, /* alias for type-detection */
+  EV_TIMER    =      0x00000100, /* timer timed out */
 #if EV_COMPAT3
-  EV_TIMEOUT  =   EV_TIMER, /* pre 4.0 API compatibility */
-#endif
-  EV_PERIODIC = 0x00000200, /* periodic timer timed out */
-  EV_SIGNAL   = 0x00000400, /* signal was received */
-  EV_CHILD    = 0x00000800, /* child/pid had status change */
-  EV_STAT     = 0x00001000, /* stat data changed */
-  EV_IDLE     = 0x00002000, /* event loop is idling */
-  EV_PREPARE  = 0x00004000, /* event loop about to poll */
-  EV_CHECK    = 0x00008000, /* event loop finished poll */
-  EV_EMBED    = 0x00010000, /* embedded event loop needs sweep */
-  EV_FORK     = 0x00020000, /* event loop resumed in child */
-  EV_CLEANUP  = 0x00040000, /* event loop resumed in child */
-  EV_ASYNC    = 0x00080000, /* async intra-loop signal */
-  EV_CUSTOM   = 0x01000000, /* for use by user code */
-  EV_ERROR    = 0x80000000  /* sent when an error occurs */
+  EV_TIMEOUT  =        EV_TIMER, /* pre 4.0 API compatibility */
+#endif
+  EV_PERIODIC =      0x00000200, /* periodic timer timed out */
+  EV_SIGNAL   =      0x00000400, /* signal was received */
+  EV_CHILD    =      0x00000800, /* child/pid had status change */
+  EV_STAT     =      0x00001000, /* stat data changed */
+  EV_IDLE     =      0x00002000, /* event loop is idling */
+  EV_PREPARE  =      0x00004000, /* event loop about to poll */
+  EV_CHECK    =      0x00008000, /* event loop finished poll */
+  EV_EMBED    =      0x00010000, /* embedded event loop needs sweep */
+  EV_FORK     =      0x00020000, /* event loop resumed in child */
+  EV_CLEANUP  =      0x00040000, /* event loop resumed in child */
+  EV_ASYNC    =      0x00080000, /* async intra-loop signal */
+  EV_CUSTOM   =      0x01000000, /* for use by user code */
+  EV_ERROR    = (int)0x80000000  /* sent when an error occurs */
 };
 
 /* can be used to add custom fields to all watchers, while losing binary compatibility */

libev/ev_wrap.h

@@ -26,7 +26,6 @@
 #define epoll_eperms ((loop)->epoll_eperms)
 #define epoll_eventmax ((loop)->epoll_eventmax)
 #define epoll_events ((loop)->epoll_events)
-#define evfd ((loop)->evfd)
 #define evpipe ((loop)->evpipe)
 #define fdchangecnt ((loop)->fdchangecnt)
 #define fdchangemax ((loop)->fdchangemax)
@@ -126,7 +125,6 @@
 #undef epoll_eperms
 #undef epoll_eventmax
 #undef epoll_events
-#undef evfd
 #undef evpipe
 #undef fdchangecnt
 #undef fdchangemax