diff --git a/redo/osxaltest/box.m_ b/redo/osxaltest/box.m
similarity index 52%
rename from redo/osxaltest/box.m_
rename to redo/osxaltest/box.m
index 7021e83a..9c3733f7 100644
--- a/redo/osxaltest/box.m_
+++ b/redo/osxaltest/box.m
@@ -50,28 +50,39 @@
 	return n;
 }
 
-- (NSString *)tBuildAutoLayoutConstraintsKeyNumber:(uintmax_t)nn
+- (void)tFillAutoLayoutHorz:(NSMutableArray *)horz
+	vert:(NSMutableArray *)vert
+	extra:(NSMutableArray *)extra
+	extraVert:(NSMutableArray *)extraVert
+	views:(NSMutableDictionary *)views
+	first:(uintmax_t *)n
 {
-	NSMutableString *constraints;
-	__block uintmax_t n = nn;
+	NSMutableArray *subhorz, *subvert;
+	uintmax_t *first;
+	NSUInteger i;
 
-	if (self->vertical)
-		constraints = [NSMutableString stringWithString:@"V:"];
-	else
-		constraints = [NSMutableString stringWithString:@"H:"];
-	[constraints appendString:@"|"];
-	[self->children enumerateObjectsUsingBlock:^(id obj, NSUInteger index, BOOL *stop) {
-		NSString *thisView;
+	first = (uintmax_t *) malloc([self->children count] * sizeof (uintmax_t));
+	if (first == NULL)
+		abort();
+	subhorz = [NSMutableArray new];
+	subvert = [NSMutableArray new];
+	for (i = 0; i < [self->children count]; i++) {
+		id<tControl> cur;
 
-		// TODO have every control do this
-		[constraints appendString:tAutoLayoutKey(n)];
-		n++;
-	}];
-	[constraints appendString:@"|"];
-	return constraints;
-	// TODOs:
-	// - lateral dimension: for each view of n+1, make other dimension next to first n
-	// 	this way, subelement views get positioned right
+		first[i] = *n;
+		cur = (id<tControl>) [self->children objectAtIndex:i];
+		[cur tFillAutoLayoutHorz:subhorz vert:subvert
+			extra:extra extraVert:extraVert
+			views:views first:n];
+	}
+	// TODO combine subhorz/subvert
+	[subhorz release];
+	[subvert release];
+	free(first);
 }
 
+// TODOs:
+// - lateral dimension: for each view of n+1, make other dimension next to first n
+// 	this way, subelement views get positioned right
+
 @end
diff --git a/redo/osxaltest/button.m b/redo/osxaltest/button.m
index 0ad98f7e..3493c5ac 100644
--- a/redo/osxaltest/button.m
+++ b/redo/osxaltest/button.m
@@ -37,10 +37,15 @@
 	extra:(NSMutableArray *)extra
 	extraVert:(NSMutableArray *)extraVert
 	views:(NSMutableDictionary *)views
+	first:(uintmax_t *)n
 {
-	[horz addObject:@"[view0]"];
-	[vert addObject:@"[view0]"];
-	[views setObject:self->b forKey:@"view0"];
+	NSString *key;
+
+	key = tAutoLayoutKey(*n);
+	(*n)++;
+	[horz addObject:[NSString stringWithFormat:@"[%@]", key]];
+	[vert addObject:[NSString stringWithFormat:@"[%@]", key]];
+	[views setObject:self->b forKey:key];
 }
 
 @end
diff --git a/redo/osxaltest/osxaltest.h b/redo/osxaltest/osxaltest.h
index c9c86912..dbdf7389 100644
--- a/redo/osxaltest/osxaltest.h
+++ b/redo/osxaltest/osxaltest.h
@@ -10,7 +10,8 @@
 	vert:(NSMutableArray *)vert
 	extra:(NSMutableArray *)extra
 	extraVert:(NSMutableArray *)extraVert
-	views:(NSMutableDictionary *)views;
+	views:(NSMutableDictionary *)views
+	first:(uintmax_t *)n;
 @end
 
 @interface tWindow : NSObject<tControl>
@@ -21,12 +22,10 @@
 - (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;
diff --git a/redo/osxaltest/spinbox.m b/redo/osxaltest/spinbox.m
index 75f9cf2c..5f1366f7 100644
--- a/redo/osxaltest/spinbox.m
+++ b/redo/osxaltest/spinbox.m
@@ -49,11 +49,17 @@
 	extraVert:(NSMutableArray *)extraVert
 	views:(NSMutableDictionary *)views
 {
-	[horz addObject:@"[view0]-[view1]"];
-	[vert addObject:@"[view0]"];
-	[vert addObject:@"[view1]"];
-	[views setObject:self->t forKey:@"view0"];
-	[views setObject:self->s forKey:@"view1"];
+	NSString *keyt;
+	NSString *keys;
+
+	keyt = tAutoLayoutKey(*n);
+	keys = tAutoLayoutKey(*n + 1);
+	*n += 2;
+	[horz addObject:[NSString stringWithFormat:@"[%@]-[%@]", keyt, keys]];
+	[vert addObject:[NSString stringWithFormat:@"[%@]", keyt]];
+	[vert addObject:[NSString stringWithFormat:@"[%@]", keys]];
+	[views setObject:self->t forKey:keyt];
+	[views setObject:self->s forKey:keys];
 }
 
 @end
diff --git a/redo/osxaltest/util.m b/redo/osxaltest/util.m
index c5ab8ea2..34635ce7 100644
--- a/redo/osxaltest/util.m
+++ b/redo/osxaltest/util.m
@@ -3,5 +3,5 @@
 
 NSString *tAutoLayoutKey(uintmax_t n)
 {
-	return [NSString stringWithFormat:@"[view%ju]", n];
+	return [NSString stringWithFormat:@"view%ju", n];
 }
diff --git a/redo/osxaltest/window.m b/redo/osxaltest/window.m
index 0da07e8a..942e3053 100644
--- a/redo/osxaltest/window.m
+++ b/redo/osxaltest/window.m
@@ -47,6 +47,7 @@
 	NSMutableDictionary *views;
 	NSUInteger i;
 	NSString *margin;
+	uintmax_t n;
 
 	if (self->c == nil)
 		return;
@@ -57,7 +58,8 @@
 	extra = [NSMutableArray new];
 	extraVert = [NSMutableArray new];
 	views = [NSMutableDictionary new];
-	[self->c tFillAutoLayoutHorz:horz vert:vert extra:extra extraVert:extraVert views:views];
+	n = 0;
+	[self->c tFillAutoLayoutHorz:horz vert:vert extra:extra extraVert:extraVert views:views first:&n];
 	margin = @"";
 	if (self->margined)
 		margin = @"-";