diff --git a/Source/GSFormat.m b/Source/GSFormat.m
index 3f1190553..58aecb879 100644
--- a/Source/GSFormat.m
+++ b/Source/GSFormat.m
@@ -1564,7 +1564,7 @@ NSDictionary *locale)
 
 	/* The string argument could in fact be `char *' or `wchar_t *'.
 	   But this should not make a difference here.  */
-	  string = (unichar *) args_value[specs[nspecs_done].data_arg].pa_wstring;
+	string = (unichar *) args_value[specs[nspecs_done].data_arg].pa_wstring;
 
 	/* Entry point for printing other strings.  */
       LABEL (print_string):
@@ -1616,6 +1616,7 @@ NSDictionary *locale)
 	    int prc;
 	    unichar *sp;
 	    wchar_t *wsp;
+
 	    len = 0;
 	    prc = prec;
 	    wsp = (wchar_t *)string;
diff --git a/Source/GSHTTPURLHandle.m b/Source/GSHTTPURLHandle.m
index af1df472e..ff2941276 100644
--- a/Source/GSHTTPURLHandle.m
+++ b/Source/GSHTTPURLHandle.m
@@ -331,7 +331,7 @@ static NSLock			*urlLock = nil;
 	name = GSFileHandleConnectCompletionNotification;
       else if (connectionState == writing)
 	name = GSFileHandleWriteCompletionNotification;
-      else if (connectionState == reading)
+      else
 	name = NSFileHandleReadCompletionNotification;
 
       [nc removeObserver: self name: name object: sock];
diff --git a/Source/GSMime.m b/Source/GSMime.m
index a6e721d09..ca4a2be07 100644
--- a/Source/GSMime.m
+++ b/Source/GSMime.m
@@ -1755,7 +1755,7 @@ parseCharacterSet(NSString *token)
 
 - (BOOL) _unfoldHeader
 {
-  char	c;
+  char	c = 0;
   BOOL	unwrappingComplete = NO;
 
   lineStart = lineEnd;
diff --git a/Source/GSString.m b/Source/GSString.m
index 3ae690d0c..fdc09fc9e 100644
--- a/Source/GSString.m
+++ b/Source/GSString.m
@@ -2577,23 +2577,21 @@ transmute(ivars self, NSString *aString)
 		       withString: (NSString*)aString
 {
   int		offset;
-  unsigned	length;
+  unsigned	length = 0;
 
   GS_RANGE_CHECK(aRange, _count);
-  if (aString == nil)
+  if (aString != nil)
     {
-      length = 0;
+      if (GSObjCIsInstance(aString) == NO)
+	{
+	  [NSException raise: NSInvalidArgumentException
+		      format: @"replace characters with non-string"];
+	}
+      else
+	{
+	  length = (aString == nil) ? 0 : [aString length];
+	}
     }
-  else if (GSObjCIsInstance(aString) == NO)
-    {
-      [NSException raise: NSInvalidArgumentException
-		  format: @"replace characters with non-string"];
-    }
-  else
-    {
-      length = (aString == nil) ? 0 : [aString length];
-    }
-
   offset = length - aRange.length;
 
   if (offset < 0)
diff --git a/Source/NSDictionary.m b/Source/NSDictionary.m
index b8b88b50c..0cf39c43c 100644
--- a/Source/NSDictionary.m
+++ b/Source/NSDictionary.m
@@ -790,7 +790,7 @@ static NSString	*indentStrings[] = {
 #define STRIDE_FACTOR 3
 	  unsigned	c,d, stride;
 	  BOOL		found;
-	  NSComparisonResult	(*comp)(id, SEL, id);
+	  NSComparisonResult	(*comp)(id, SEL, id) = 0;
 	  int		count = numKeys;
 #ifdef	GSWARN
 	  BOOL		badComparison = NO;
diff --git a/Source/NSPortNameServer.m b/Source/NSPortNameServer.m
index bce7ba29e..e437ff20b 100644
--- a/Source/NSPortNameServer.m
+++ b/Source/NSPortNameServer.m
@@ -580,7 +580,7 @@ typedef enum {
   NSRunLoop		*loop = [NSRunLoop currentRunLoop];
   struct in_addr	singleServer;
   struct in_addr	*svrs = &singleServer;
-  unsigned		numSvrs;
+  unsigned		numSvrs = 1;
   unsigned		count;
   unsigned		portNum = 0;
   unsigned		len;
@@ -616,7 +616,6 @@ typedef enum {
       /*
        *	Query a single nameserver - on the local host.
        */
-      numSvrs = 1;
 #ifndef HAVE_INET_ATON
       svrs->s_addr = inet_addr("127.0.0.1");
 #else
@@ -938,7 +937,7 @@ typedef enum {
 - (void) removePortForName: (NSString*)name
 {
   NSRunLoop	*loop = [NSRunLoop currentRunLoop];
-  GSPortCom	*com;
+  GSPortCom	*com = nil;
   unsigned	len;
   NSDate	*limit = [NSDate dateWithTimeIntervalSinceNow: timeout];
 
diff --git a/Source/NSSerializer.m b/Source/NSSerializer.m
index ee29ca94b..2e6d81e86 100644
--- a/Source/NSSerializer.m
+++ b/Source/NSSerializer.m
@@ -159,7 +159,7 @@ serializeToInfo(id object, _NSSerializerInfo* info)
     {
       [NSException raise: NSInvalidArgumentException
 		  format: @"Class (%@) in property list - expected instance",
-				[c description]];
+				[object description]];
     }
   c = GSObjCClass(object);
   if (GSObjCIsKindOf(c, CStringClass)
diff --git a/Source/NSURLHandle.m b/Source/NSURLHandle.m
index 8b3d5240c..74c629fcb 100644
--- a/Source/NSURLHandle.m
+++ b/Source/NSURLHandle.m
@@ -492,6 +492,7 @@ static NSLock			*fileLock = nil;
 	}
       NS_HANDLER
 	{
+	  obj = nil;
 	  [fileLock unlock];
 	  [localException raise];
 	}
diff --git a/Source/NSUnarchiver.m b/Source/NSUnarchiver.m
index da0d3da1b..18cafd3f7 100644
--- a/Source/NSUnarchiver.m
+++ b/Source/NSUnarchiver.m
@@ -319,6 +319,7 @@ static Class NSDataMallocClass;
     }
   NS_HANDLER
     {
+      obj = nil;
       RELEASE(unarchiver);
       [localException raise];
     }