diff --git a/EcAlarmSinkSNMP.m b/EcAlarmSinkSNMP.m
index 9c00e96..624a2b7 100644
--- a/EcAlarmSinkSNMP.m
+++ b/EcAlarmSinkSNMP.m
@@ -591,7 +591,7 @@ init_EcAlarmSink(void)
   tinfo->max_column = COLUMN_OBJECTID;
   netsnmp_tdata_register(reg, objectsTable, tinfo);
 
-  /* Create the alarms table as a red-only item for SNMP.
+  /* Create the alarms table as a read-only item for SNMP.
    */
   reg = netsnmp_create_handler_registration(
     "alarmsTable",
diff --git a/EcAlerter.m b/EcAlerter.m
index 4243c63..9a1ca36 100644
--- a/EcAlerter.m
+++ b/EcAlerter.m
@@ -364,7 +364,8 @@ replaceFields(NSDictionary *fields, NSString *template)
 {
   return [NSString stringWithFormat: @"%@ -\nConfigured with %u rules\n"
     @"With SMTP %@:%@ as %@\nPending Email:%@\nPending SMS:%@",
-    [super description], [rules count], eHost, ePort, eFrom, email, sms];
+    [super description], (unsigned)[rules count], eHost, ePort,
+    eFrom, email, sms];
 }
 
 - (void) flushEmailForAddress: (NSString*)address
diff --git a/EcControl.m b/EcControl.m
index faed197..2b329e9 100644
--- a/EcControl.m
+++ b/EcControl.m
@@ -1987,7 +1987,6 @@ static NSString*	cmdWord(NSArray* a, unsigned int pos)
   NSString	*repair;
   NSString	*spacing1;
   NSString	*spacing2;
-  int           minutes;
 
   instance = [alarm moInstance];
   if ([instance length] == 0)
@@ -2032,8 +2031,6 @@ static NSString*	cmdWord(NSArray* a, unsigned int pos)
       spacing2 = @", ";
     }
 
-  minutes = (0.0 - [[alarm eventDate] timeIntervalSinceNow]) / 60.0;
-
   identifier = [NSString stringWithFormat: @"%d", [alarm notificationID]];
 
   alarm = [[alarm copy] autorelease];
@@ -2702,7 +2699,7 @@ static NSString*	cmdWord(NSArray* a, unsigned int pos)
 	  e = [NSString stringWithFormat:
 	    @"%@ top-level is not a dictionary.\n", path];
 	  ASSIGN(configFailed, e);
-	  [[self cmdLogFile: logname] printf: @"%n", configFailed];
+	  [[self cmdLogFile: logname] printf: @"%@", configFailed];
 	  return NO;
 	}
 
diff --git a/EcProcess.h b/EcProcess.h
index 8d70f38..6c25a5f 100644
--- a/EcProcess.h
+++ b/EcProcess.h
@@ -368,7 +368,7 @@ extern NSString*	cmdVersion(NSString *ver);
 - (NSArray*) alarms;
 
 /** Convenience method to clear an alarm as produced by the
- * -alarmConfiguratonFor:specificProblem:perceivedSeverity:additionalText:
+ * -alarmConfigurationFor:specificProblem:additionalText:critical:
  * method.
  */
 - (void) clearConfigurationFor: (NSString*)managedObject
@@ -451,7 +451,7 @@ extern NSString*	cmdVersion(NSString *ver);
 /** Send a SEVERE error message to the server by calling the
  * -cmdAlert:arguments: method.
  */
-- (void) cmdAlert: (NSString*)fmt, ...;
+- (void) cmdAlert: (NSString*)fmt, ... NS_FORMAT_FUNCTION(1,2);
 
 /** Archives debug log files into the specified subdirectory of the debug
  * logging directory.  If subdir is nil then a subdirectory name corresponding
@@ -466,7 +466,7 @@ extern NSString*	cmdVersion(NSString *ver);
 
 /** Send a log message to the server by calling the -cmdAudit:arguments: method.
  */
-- (void) cmdAudit: (NSString*)fmt, ...;
+- (void) cmdAudit: (NSString*)fmt, ... NS_FORMAT_FUNCTION(1,2);
 
 /** Handles loss of connection to the server.
  */
@@ -485,7 +485,8 @@ extern NSString*	cmdVersion(NSString *ver);
 /** Send a debug message - as long as the debug mode specified as 'type'
  * is currently set.  Operates by calling the -cmdDbg:msg:arguments: method.
  */
-- (void) cmdDbg: (NSString*)type msg: (NSString*)fmt, ...;
+- (void) cmdDbg: (NSString*)type
+            msg: (NSString*)fmt, ... NS_FORMAT_FUNCTION(1,3);
 
 /** Send a debug message with debug mode 'defaultMode'.<br />
  * Calls the -cmdDbg:msg:arguments: method.
@@ -495,7 +496,7 @@ extern NSString*	cmdVersion(NSString *ver);
 /** Send a debug message with debug mode 'defaultMode'.<br />
  * Operates by calling the -cmdDebug:arguments: method.
  */
-- (void) cmdDebug: (NSString*)fmt, ...;
+- (void) cmdDebug: (NSString*)fmt, ... NS_FORMAT_FUNCTION(1,2);
 
 /** Called whenever the user defaults are updated (which may be due to a
  * central configuration in additions to other defaults system changes).<br />
@@ -520,7 +521,7 @@ extern NSString*	cmdVersion(NSString *ver);
 /** Send an error message to the server by calling the
  * -cmdError:arguments: method.
  */
-- (void) cmdError: (NSString*)fmt, ...;
+- (void) cmdError: (NSString*)fmt, ... NS_FORMAT_FUNCTION(1,2);
 
 /** Flush logging information.
  */
@@ -672,7 +673,7 @@ extern NSString*	cmdVersion(NSString *ver);
 
 /** Send a warning message to the server.
  */
-- (void) cmdWarn: (NSString*)fmt, ...;
+- (void) cmdWarn: (NSString*)fmt, ... NS_FORMAT_FUNCTION(1,2);
 
 /* Return interval between timeouts.
  */
@@ -740,7 +741,7 @@ extern NSString*	cmdVersion(NSString *ver);
 /** May be used withing cmdMesg... methods to return formatted text to
  * the Console.
  */
-- (void) cmdPrintf: (NSString*)fmt, ...;
+- (void) cmdPrintf: (NSString*)fmt, ... NS_FORMAT_FUNCTION(1,2);
 
 /** Should be over-ridden to perform extra tidy up on shutdown of the
  * process - should call [super cmdQuit:...] at the end of the method.
@@ -885,7 +886,7 @@ extern NSString*	cmdVersion(NSString *ver);
 /** Logs a message iff the process is running in test mode.<br />
  * Operates by calling the -ecTestLog:arguments: method.
  */
-- (void) ecTestLog: (NSString*)fmt, ...;
+- (void) ecTestLog: (NSString*)fmt, ... NS_FORMAT_FUNCTION(1,2);
 
 /** Returns the directory set as the root for files owned by the ECCL user
  */
diff --git a/EcProcess.m b/EcProcess.m
index 1999ba8..e820fa1 100644
--- a/EcProcess.m
+++ b/EcProcess.m
@@ -3683,16 +3683,11 @@ NSLog(@"Ignored attempt to set timer interval to %g ... using 10.0", interval);
   
   return ([server multiple] == nil) ? NO : YES;
 }
+
 @end
 
 @implementation	EcProcess (Private)
 
-// For logging from the Control server.
-- (void) log: (NSString*)message type: (EcLogType)t
-{
-  NSLog(@"%@", message);
-}
-
 - (void) cmdMesgrelease: (NSArray*)msg
 {
   if ([msg count] == 0)
diff --git a/NSFileHandle+Printf.h b/NSFileHandle+Printf.h
index 0d6b4a8..9f1b5c5 100644
--- a/NSFileHandle+Printf.h
+++ b/NSFileHandle+Printf.h
@@ -34,7 +34,7 @@
 @interface	NSFileHandle (Printf)
 
 - (void) printWithFormat: (NSString*)format arguments: (va_list)args;
-- (void) printf: (NSString*)format,...;
+- (void) printf: (NSString*)format,... NS_FORMAT_FUNCTION(1,2);
 - (void) puts: (NSString*)text;
 
 @end