diff --git a/redo/osxaltest/box.m b/redo/osxaltest/box.m
index d17e3440..e9f2a3c2 100644
--- a/redo/osxaltest/box.m
+++ b/redo/osxaltest/box.m
@@ -1,16 +1,13 @@
 // 31 july 2015
 #import "osxaltest.h"
 
-@interface tBox : NSObject<tControl> {
+@implementation tBox {
 	NSMutableArray *children;
 	NSView *sv;
 	BOOL vertical;
 }
-@end
 
-@implementation tBox
-
-- (id)initVertical:(BOOL)vert
+- (id)tInitVertical:(BOOL)vert
 {
 	self = [super init];
 	if (self) {
@@ -21,7 +18,7 @@
 	return self;
 }
 
-- (void)addControl:(NSObject<tControl> *)c stretchy:(BOOL)s
+- (void)tAddControl:(id<tControl>)c stretchy:(BOOL)s
 {
 	// TODO
 }
diff --git a/redo/osxaltest/button.m b/redo/osxaltest/button.m
index 0e7e0d41..29924957 100644
--- a/redo/osxaltest/button.m
+++ b/redo/osxaltest/button.m
@@ -1,14 +1,11 @@
 // 31 july 2015
 #import "osxaltest.h"
 
-@interface tButton : NSObject<tControl> {
+@implementation tButton {
 	NSButton *b;
 }
-@end
 
-@implementation tButton
-
-- (id)initWithText:(NSString *)text
+- (id)tInitWithText:(NSString *)text
 {
 	self = [super init];
 	if (self) {
diff --git a/redo/osxaltest/osxaltest b/redo/osxaltest/osxaltest
deleted file mode 100755
index f20c5c9c..00000000
Binary files a/redo/osxaltest/osxaltest and /dev/null differ
diff --git a/redo/osxaltest/osxaltest.h b/redo/osxaltest/osxaltest.h
index dd56a4c7..e7ddb038 100644
--- a/redo/osxaltest/osxaltest.h
+++ b/redo/osxaltest/osxaltest.h
@@ -9,8 +9,17 @@
 @end
 
 @interface tWindowDelegate : NSObject<NSWindowDelegate>
-- (void)tSetControl:(NSObject<tControl> *)cc;
+- (void)tSetControl:(id<tControl>)cc;
 - (void)tRelayout;
 @end
 
+@interface tBox : NSObject<tControl>
+- (id)tInitVertical:(BOOL)vert;
+- (void)tAddControl:(id<tControl>)c stretchy:(BOOL)s;
+@end
+
+@interface tButton : NSObject<tControl>
+- (id)tInitWithText:(NSString *)text;
+@end
+
 extern NSString *tAutoLayoutKey(uintmax_t);
diff --git a/redo/osxaltest/windelegate.m b/redo/osxaltest/windelegate.m
index c7dd2f58..2df0b668 100644
--- a/redo/osxaltest/windelegate.m
+++ b/redo/osxaltest/windelegate.m
@@ -2,7 +2,7 @@
 #import "osxaltest.h"
 
 @implementation tWindowDelegate {
-	NSObject<tControl> *c;
+	id<tControl> c;
 }
 
 - (id)init
@@ -13,7 +13,7 @@
 	return self;
 }
 
-- (void)tSetControl:(NSObject<tControl> *)cc
+- (void)tSetControl:(id<tControl>)cc
 {
 	self->c = cc;
 }