use 'if DEBUG' instead of just ifdef, incase it's somehow DEBUG=0

Endless/Endless-Prefix.pch

···
 #ifndef Endless_Endless_Prefix_pch
 #define Endless_Endless_Prefix_pch
 
-#ifdef DEBUG
+#if DEBUG
 
 /* NSLog() all network activity and boring stuff */
 #define TRACE

Endless/HostSettings.h

···
 + (HostSettings *)forHost:(NSString *)host;
 + (HostSettings *)settingsOrDefaultsForHost:(NSString *)host;
 + (BOOL)removeSettingsForHost:(NSString *)host;
-#ifdef DEBUG
+#if DEBUG
 + (void)overrideHosts:(NSMutableDictionary *)hosts;
 #endif
 

Endless/HostSettings.m

···
 	return [self forHost:HOST_SETTINGS_DEFAULT];
 }
 
-#ifdef DEBUG
+#if DEBUG
 /* just for testing */
 + (void)overrideHosts:(NSMutableDictionary *)hosts
 {