Fix compiler warnings.

Test/AssociatedObject2.m

@@ -25,7 +25,6 @@ int main()
 	tc =  [MLTestClass new];
 	objc_setAssociatedObject(tc, &static_char, (id)1223, OBJC_ASSOCIATION_ASSIGN);
 	[tc release];
-	int i = 0;
 	tc =  [MLTestClass new];
 	objc_setAssociatedObject(tc, &static_char, (id)1223, OBJC_ASSOCIATION_ASSIGN);
 	SEL some_sel = sel_registerName(".some_sel");
@@ -33,5 +32,6 @@ int main()
 	class_addMethod(object_getClass(tc), some_sel,
 			(IMP)ff, types);
 	int j = (int)objc_getAssociatedObject(tc, &static_char); 
+	assert(j == 1223);
 	[tc release];
 }

Test/ExceptionTest.m

@@ -27,6 +27,7 @@ int finally(void)
 {
 	__attribute__((cleanup(runCleanup)))
 	int x;
+	(void)x;
 	@try { throw(); }
 	@finally  { finallyEntered = YES; }
 	return 0;

Test/IVarSuperclassOverlap.m

@@ -44,7 +44,7 @@ int main(int argc, char *argv[])
 	Ivar b1 = class_getInstanceVariable(swb, "b1");
 	Ivar b2 = class_getInstanceVariable(swb, "b2");
 	Ivar b3 = class_getInstanceVariable(swb, "b3");
-	Ivar b4 = class_getInstanceVariable(swb, "b3");
+	Ivar b4 = class_getInstanceVariable(swb, "b4");
 	Ivar notBitfield = class_getInstanceVariable(swb, "notBitfield");
 	assert(baseSmall);
 	assert(c1);
@@ -53,6 +53,8 @@ int main(int argc, char *argv[])
 	assert(b1);
 	assert(b2);
 	assert(b3);
+	assert(b4);
+	assert(notBitfield);
 	StartsWithBitfield *swbi = [StartsWithBitfield new];
 
 	// Alternating 01 bit pattern, should catch small overwrites.
@@ -77,8 +79,8 @@ int main(int argc, char *argv[])
 	assert(swbi->b3 == 5);
 	assert(swbi->b4 == 11);
 
-	ptrdiff_t baseSmallOffset = ivar_getOffset(baseSmall);
 #ifdef NEW_ABI
+	ptrdiff_t baseSmallOffset = ivar_getOffset(baseSmall);
 	// These should pass with the old ABI, but they don't at the moment.  The
 	// way that they don't is not very harmful though: we just get a bit of
 	// redundant padding, so I don't consider a fix a very high priority.

Test/ManyManySelectors.m

@@ -13,6 +13,10 @@ static char selBuffer[] = "XXXXXXXselectorXXXXXXXX";
 static id x(id self, SEL _cmd)
 {
 	methodCalled = YES;
+	if (strcmp(selBuffer, sel_getName(_cmd)) != 0)
+	{
+		fprintf(stderr, "'%s' != '%s'\n", selBuffer, sel_getName(_cmd));
+	}
 	assert(strcmp(selBuffer, sel_getName(_cmd)) == 0);
 	return self;
 }

Test/PropertyAttributeTest.m

@@ -31,7 +31,7 @@ __attribute__((objc_root_class))
 
 int main()
 {
-	unsigned int outCount, i;
+	unsigned int outCount;
 	objc_property_t *properties = class_copyPropertyList([helloclass class], &outCount);
 	assert(outCount == 1);
 	objc_property_t property = properties[0];

Test/ProtocolCreation.m

@@ -25,6 +25,7 @@ void checkProtocolMethod(Protocol *p, SEL sel, BOOL isClass, BOOL isOptional)
 
 int main(void)
 {
+	__attribute__((unused))
 	Protocol *force_reference = @protocol(Test2);
 	Protocol *p = objc_allocateProtocol("Test");
 	protocol_addMethodDescription(p, @selector(someClassMethod), "@:", YES, NO);

Test/setSuperclass.m

@@ -166,9 +166,6 @@ static int failures = 0;
 } while(0)
 
 int main(int argc, char **argv) {
-	Class firstSuperclass = objc_getClass("DefaultSuperclass");
-	Class subclass1 = objc_getClass("Subclass1");
-
 	/* Transitioning to a new superclass before +initialize has been called */
 	{
 		Class subclass1 = objc_getClass("Subclass1");
@@ -232,8 +229,6 @@ int main(int argc, char **argv) {
 		class_setSuperclass(subclass2, secondSuperclass);
 		assert(_notInitializedSuperclass2Initialized);
 
-		Subclass2 *subclass2instance2 = class_createInstance(subclass2, 0);
-
 		// CLASS
 		// can call method on subclass
 		expect([subclass2instance1 existsOnSubclass2]);

Test/zeroSizedIVar.m

@@ -43,7 +43,6 @@ int main()
 	assert(class_getInstanceSize(nsarray) == (sizeof(Class) + sizeof(NSUInteger)));
 	Ivar count = class_getInstanceVariable(nsarray, "count");
 	assert(ivar_getOffset(count) == sizeof(id));
-	Ivar objects = class_getInstanceVariable(nsarray, "objects");
 
 	Class bitfield = objc_getClass("BitfieldTest");
 	assert(bitfield);

arc.m

@@ -109,8 +109,6 @@ static inline struct arc_tls* getARCThreadData(void)
 	return tls;
 #endif
 }
-static int count = 0;
-static int poolCount = 0;
 static inline void release(id obj);
 
 /**
@@ -151,7 +149,6 @@ static void emptyPool(struct arc_tls *tls, id *stop)
 			// This may autorelease some other objects, so we have to work in
 			// the case where the autorelease pool is extended during a -release.
 			release(*tls->pool->insert);
-			count--;
 		}
 		void *old = tls->pool;
 		tls->pool = tls->pool->previous;
@@ -163,7 +160,6 @@ static void emptyPool(struct arc_tls *tls, id *stop)
 		       (tls->pool->insert > tls->pool->pool))
 		{
 			tls->pool->insert--;
-			count--;
 			release(*tls->pool->insert);
 		}
 	}
@@ -405,7 +401,6 @@ static inline id autorelease(id obj)
 				pool->insert = pool->pool;
 				tls->pool = pool;
 			}
-			count++;
 			*pool->insert = obj;
 			pool->insert++;
 			return obj;

encoding2.c

@@ -419,7 +419,10 @@ void method_getArgumentType(Method method,
 	const char *types = findParameterStart(method_getTypeEncoding(method), index);
 	if (NULL == types)
 	{
-		strncpy(dst, "", dst_len);
+		if (dst_len > 0)
+		{
+			*dst = '\0';
+		}
 		return;
 	}
 	size_t length = lengthOfTypeEncoding(types);

ivar.c

@@ -14,7 +14,6 @@ ptrdiff_t objc_sizeof_type(const char *);
 
 PRIVATE void objc_compute_ivar_offsets(Class class)
 {
-	struct objc_ivar_list_legacy *legacy = NULL;
 	if (class->ivars == NULL)
 	{
 		Class super_class = class_getSuperclass(class);
@@ -47,7 +46,6 @@ PRIVATE void objc_compute_ivar_offsets(Class class)
 			}
 			ivar_start = super->instance_size;
 		}
-		long class_size = 0 - class->instance_size;
 		class->instance_size = ivar_start;
 		/* For each instance variable, we add the offset if required (it will be zero
 		* if this class is compiled with a static ivar layout).  We then set the

ivar.h

@@ -180,7 +180,7 @@ struct objc_ivar_list
  * `objc_ivar` structs, which have fields appended that this version of the
  * runtime does not know about.
  */
-static struct objc_ivar *ivar_at_index(struct objc_ivar_list *l, int i)
+static inline struct objc_ivar *ivar_at_index(struct objc_ivar_list *l, int i)
 {
 	assert(l->size >= sizeof(struct objc_ivar));
 	return (struct objc_ivar*)(((char*)l->ivar_list) + (i * l->size));

loader.c

@@ -231,7 +231,6 @@ OBJC_PUBLIC void __objc_load(struct objc_init *init)
 		}
 		objc_register_selector(sel);
 	}
-	int i = 0;
 	for (struct objc_protocol *proto = init->proto_begin ; proto < init->proto_end ;
 	     proto++)
 	{

method.h

@@ -77,7 +77,7 @@ struct objc_method_list
  * `objc_method` structs, which have fields appended that this version of the
  * runtime does not know about.
  */
-static struct objc_method *method_at_index(struct objc_method_list *l, int i)
+static inline struct objc_method *method_at_index(struct objc_method_list *l, int i)
 {
 	assert(l->size >= sizeof(struct objc_method));
 	return (struct objc_method*)(((char*)l->methods) + (i * l->size));

properties.h

@@ -217,7 +217,7 @@ struct objc_property_list
  * `objc_property` structs, which have fields appended that this version of the
  * runtime does not know about.
  */
-static struct objc_property *property_at_index(struct objc_property_list *l, int i)
+static inline struct objc_property *property_at_index(struct objc_property_list *l, int i)
 {
 	assert(l->size >= sizeof(struct objc_property));
 	return (struct objc_property*)(((char*)l->properties) + (i * l->size));

protocol.c

@@ -705,7 +705,6 @@ void protocol_addProperty(Protocol *aProtocol,
 	}
 	struct objc_property_list *list = *listPtr;
 	int index = list->count-1;
-	const char *iVarName = NULL;
 	struct objc_property p = propertyFromAttrs(attributes, attributeCount, name);
 	assert(list->size == sizeof(p));
 	memcpy(&(list->properties[index]), &p, sizeof(p));

protocol.h

@@ -79,7 +79,7 @@ struct objc_protocol_method_description_list
  * array of some future version of these structs, which have fields appended
  * that this version of the runtime does not know about.
  */
-static struct objc_protocol_method_description *
+static inline struct objc_protocol_method_description *
 protocol_method_at_index(struct objc_protocol_method_description_list *l, int i)
 {
 	assert(l->size >= sizeof(struct objc_protocol_method_description));

runtime.c

@@ -782,7 +782,6 @@ void *object_getIndexedIvars(id obj)
 	size_t size = classForObject(obj)->instance_size;
 	if ((0 == size) && class_isMetaClass(classForObject(obj)))
 	{
-		Class cls = (Class)obj;
 		size = sizeof(struct objc_class);
 	}
 	return ((char*)obj) + size;