iso c fix

Changes

@@ -57,6 +57,7 @@ TODO: document portbaility requirements for atomic pointer access
           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

ev.h

@@ -209,29 +209,29 @@ struct ev_loop;
 
 /* 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 */