Index: src/OFRunLoop.m
==================================================================
--- src/OFRunLoop.m
+++ src/OFRunLoop.m
@@ -15,10 +15,11 @@
  */
 
 #include "config.h"
 
 #include <assert.h>
+#include <errno.h>
 
 #import "OFRunLoop.h"
 #import "OFRunLoop+Private.h"
 #import "OFDictionary.h"
 #ifdef OF_HAVE_SOCKETS
@@ -31,10 +32,12 @@
 #endif
 #import "OFSortedList.h"
 #import "OFTimer.h"
 #import "OFTimer+Private.h"
 #import "OFDate.h"
+
+#import "OFObserveFailedException.h"
 
 static OFRunLoop *mainRunLoop = nil;
 
 #ifdef OF_HAVE_SOCKETS
 @interface OFRunLoop_QueueItem: OFObject