diff --git a/src/libtess.js/dict/Dict.js b/src/libtess.js/dict/Dict.js
index 1186031bcd..fa97f5c280 100644
--- a/src/libtess.js/dict/Dict.js
+++ b/src/libtess.js/dict/Dict.js
@@ -35,6 +35,10 @@
 // require libtess
 /*global libtess */
 
+goog.provide('libtess.Dict');
+goog.require('libtess');
+goog.require('libtess.DictNode');
+
 
 // TODO(bckenny): better typing for DictKey? actually libtess.ActiveRegion
 /** @typedef {Object} */
diff --git a/src/libtess.js/dict/DictNode.js b/src/libtess.js/dict/DictNode.js
index 8a41190a2c..4cb6e34dc9 100644
--- a/src/libtess.js/dict/DictNode.js
+++ b/src/libtess.js/dict/DictNode.js
@@ -36,6 +36,9 @@
 // require libtess.Dict
 /*global libtess */
 
+goog.provide('libtess.DictNode');
+goog.require('libtess');
+
 // TODO(bckenny): better typing for DictKey?
 
 
diff --git a/src/libtess.js/geom.js b/src/libtess.js/geom.js
index b399ec29bf..63524392fa 100644
--- a/src/libtess.js/geom.js
+++ b/src/libtess.js/geom.js
@@ -40,10 +40,8 @@
 // require libtess.GluVertex
 /*global libtess */
 
-
-libtess.geom = function() {
-
-};
+goog.provide('libtess.geom');
+goog.require('libtess');
 
 
 /**
diff --git a/src/libtess.js/libtess.js b/src/libtess.js/libtess.js
index 9c289a0fb4..8c6c714670 100644
--- a/src/libtess.js/libtess.js
+++ b/src/libtess.js/libtess.js
@@ -32,11 +32,7 @@
  * @author bckenny@google.com (Brendan Kenny)
  */
 
-
-/**
- * Base namespace.
- */
-var libtess = libtess || {};
+goog.provide('libtess');
 
 
 /**
diff --git a/src/libtess.js/libtess/CachedVertex.js b/src/libtess.js/libtess/CachedVertex.js
index 71532139e6..b2d9ed9363 100644
--- a/src/libtess.js/libtess/CachedVertex.js
+++ b/src/libtess.js/libtess/CachedVertex.js
@@ -35,6 +35,9 @@
 // require libtess
 /*global libtess */
 
+goog.provide('libtess.CachedVertex');
+goog.require('libtess');
+
 
 
 /**
diff --git a/src/libtess.js/libtess/GluTesselator.js b/src/libtess.js/libtess/GluTesselator.js
index 97bed914bb..f286ed268f 100644
--- a/src/libtess.js/libtess/GluTesselator.js
+++ b/src/libtess.js/libtess/GluTesselator.js
@@ -40,6 +40,16 @@
 // require libtess.sweep
 /*global libtess */
 
+goog.provide('libtess.GluTesselator');
+goog.require('libtess');
+goog.require('libtess.CachedVertex');
+goog.require('libtess.GluMesh');
+goog.require('libtess.mesh');
+goog.require('libtess.normal');
+goog.require('libtess.render');
+goog.require('libtess.sweep');
+goog.require('libtess.tessmono');
+
 // TODO(bckenny): options for just triangles, just tristrips, single tristrip w/ resets
 // other primitives with index buffer? would have to add a better tristrip extractor
 // monotone poly -> tristrip seems possible...
diff --git a/src/libtess.js/mesh.js b/src/libtess.js/mesh.js
index be21302489..402064859d 100644
--- a/src/libtess.js/mesh.js
+++ b/src/libtess.js/mesh.js
@@ -39,13 +39,15 @@
 // require libtess.GluVertex
 /*global libtess */
 
+goog.provide('libtess.mesh');
+goog.require('libtess');
+goog.require('libtess.GluFace');
+goog.require('libtess.GluHalfEdge');
+goog.require('libtess.GluVertex');
+
 // TODO(bckenny): could maybe merge GluMesh and mesh.js since these are
 // operations on the mesh
 
-libtess.mesh = function() {
-
-};
-
 /****************** Basic Edge Operations **********************/
 
 
diff --git a/src/libtess.js/mesh/GluFace.js b/src/libtess.js/mesh/GluFace.js
index c19cf0bcfd..f4a47384f1 100644
--- a/src/libtess.js/mesh/GluFace.js
+++ b/src/libtess.js/mesh/GluFace.js
@@ -36,6 +36,9 @@
 // requre libtess.GluHalfEdge
 /*global libtess */
 
+goog.provide('libtess.GluFace');
+goog.require('libtess');
+
 
 
 /**
diff --git a/src/libtess.js/mesh/GluHalfEdge.js b/src/libtess.js/mesh/GluHalfEdge.js
index ec706cc541..8cbc06c68d 100644
--- a/src/libtess.js/mesh/GluHalfEdge.js
+++ b/src/libtess.js/mesh/GluHalfEdge.js
@@ -38,6 +38,9 @@
 // require libtess.ActiveRegion
 /*global libtess */
 
+goog.provide('libtess.GluHalfEdge');
+goog.require('libtess');
+
 
 
 /**
diff --git a/src/libtess.js/mesh/GluMesh.js b/src/libtess.js/mesh/GluMesh.js
index cc37745ad0..d76eaa4460 100644
--- a/src/libtess.js/mesh/GluMesh.js
+++ b/src/libtess.js/mesh/GluMesh.js
@@ -37,6 +37,12 @@
 // require libtess.GluVertex
 /*global libtess */
 
+goog.provide('libtess.GluMesh');
+goog.require('libtess');
+goog.require('libtess.GluFace');
+goog.require('libtess.GluHalfEdge');
+goog.require('libtess.GluVertex');
+
 
 
 /**
diff --git a/src/libtess.js/mesh/GluVertex.js b/src/libtess.js/mesh/GluVertex.js
index 1e92dab8a1..f69e4383cd 100644
--- a/src/libtess.js/mesh/GluVertex.js
+++ b/src/libtess.js/mesh/GluVertex.js
@@ -35,6 +35,9 @@
 // requre libtess.GluHalfEdge
 /*global libtess */
 
+goog.provide('libtess.GluVertex');
+goog.require('libtess');
+
 
 
 /**
diff --git a/src/libtess.js/normal.js b/src/libtess.js/normal.js
index 43bc6081e2..7834bd470b 100644
--- a/src/libtess.js/normal.js
+++ b/src/libtess.js/normal.js
@@ -36,9 +36,8 @@
 // require libtess.GluTesselator
 /*global libtess */
 
-libtess.normal = function() {
-
-};
+goog.provide('libtess.normal');
+goog.require('libtess');
 
 
 // TODO(bckenny): NOTE:
diff --git a/src/libtess.js/priorityq/PQHandleElem.js b/src/libtess.js/priorityq/PQHandleElem.js
index 8167b646de..12f992a427 100644
--- a/src/libtess.js/priorityq/PQHandleElem.js
+++ b/src/libtess.js/priorityq/PQHandleElem.js
@@ -35,6 +35,9 @@
 // require libtess
 /*global libtess */
 
+goog.provide('libtess.PQHandleElem');
+goog.require('libtess');
+
 // TODO(bckenny): more specific typing on key
 
 
diff --git a/src/libtess.js/priorityq/PQNode.js b/src/libtess.js/priorityq/PQNode.js
index a29342d3c9..b879201320 100644
--- a/src/libtess.js/priorityq/PQNode.js
+++ b/src/libtess.js/priorityq/PQNode.js
@@ -35,6 +35,9 @@
 // require libtess
 /*global libtess */
 
+goog.provide('libtess.PQNode');
+goog.require('libtess');
+
 // TODO(bckenny): maybe just have these created inline as literals
 // (or unboxed directly - PQHandle is just an array index number)
 
diff --git a/src/libtess.js/priorityq/PriorityQ.js b/src/libtess.js/priorityq/PriorityQ.js
index f1a19c9268..eee4c013aa 100644
--- a/src/libtess.js/priorityq/PriorityQ.js
+++ b/src/libtess.js/priorityq/PriorityQ.js
@@ -36,6 +36,10 @@
 // require libtess.PriorityQHeap
 /*global libtess */
 
+goog.provide('libtess.PriorityQ');
+goog.require('libtess');
+goog.require('libtess.PriorityQHeap');
+
 // TODO(bckenny): preallocating arrays may actually be hurting us in sort
 // performance (esp if theres some undefs in there)
 
diff --git a/src/libtess.js/priorityq/PriorityQHeap.js b/src/libtess.js/priorityq/PriorityQHeap.js
index 99a5e1b5ec..90d527114c 100644
--- a/src/libtess.js/priorityq/PriorityQHeap.js
+++ b/src/libtess.js/priorityq/PriorityQHeap.js
@@ -37,6 +37,11 @@
 // require libtess.PQHandleElem
 /*global libtess */
 
+goog.provide('libtess.PriorityQHeap');
+goog.require('libtess');
+goog.require('libtess.PQHandleElem');
+goog.require('libtess.PQNode');
+
 // TODO(bckenny): keys appear to always be GluVertex in this case?
 
 
diff --git a/src/libtess.js/render.js b/src/libtess.js/render.js
index 403a10c4ff..35c49135cc 100644
--- a/src/libtess.js/render.js
+++ b/src/libtess.js/render.js
@@ -40,12 +40,12 @@
 // require libtess.GluMesh
 /*global libtess */
 
+goog.provide('libtess.render');
+goog.require('libtess');
+goog.require('libtess.FaceCount');
+
 // TODO(bckenny): most of these doc strings are probably more internal comments
 
-libtess.render = function() {
-
-};
-
 
 /**
  * [SIGN_INCONSISTENT_ description]
diff --git a/src/libtess.js/render/FaceCount.js b/src/libtess.js/render/FaceCount.js
index 8fd51633d3..d4a9dacad0 100644
--- a/src/libtess.js/render/FaceCount.js
+++ b/src/libtess.js/render/FaceCount.js
@@ -37,6 +37,9 @@
 // require libtess.GluTesselator
 /*global libtess */
 
+goog.provide('libtess.FaceCount');
+goog.require('libtess');
+
 // TODO(bckenny): Used only in private functions of render.js
 
 
diff --git a/src/libtess.js/sweep.js b/src/libtess.js/sweep.js
index 9dc3b64814..2d530a5fd6 100644
--- a/src/libtess.js/sweep.js
+++ b/src/libtess.js/sweep.js
@@ -38,6 +38,15 @@
 // require libtess.PriorityQ
 /*global libtess */
 
+goog.provide('libtess.sweep');
+goog.require('libtess');
+goog.require('libtess.ActiveRegion');
+goog.require('libtess.Dict');
+goog.require('libtess.GluVertex');
+goog.require('libtess.PriorityQ');
+goog.require('libtess.geom');
+goog.require('libtess.mesh');
+
 // TODO(bckenny): a number of these never return null (as opposed to original) and should be typed appropriately
 
 /*
@@ -70,10 +79,6 @@
  *   when it is necessary.)
  */
 
-libtess.sweep = function() {
-
-};
-
 
 /**
  * Make the sentinel coordinates big enough that they will never be
diff --git a/src/libtess.js/sweep/ActiveRegion.js b/src/libtess.js/sweep/ActiveRegion.js
index 169c909417..6e34127ec9 100644
--- a/src/libtess.js/sweep/ActiveRegion.js
+++ b/src/libtess.js/sweep/ActiveRegion.js
@@ -38,6 +38,9 @@
 // require libtess.GluHalfEdge
 /*global libtess */
 
+goog.provide('libtess.ActiveRegion');
+goog.require('libtess.DictNode');
+
 // TODO(bckenny): apparently only visible outside of sweep for debugging routines.
 // find out if we can hide
 
diff --git a/src/libtess.js/tessmono.js b/src/libtess.js/tessmono.js
index 466c1ed5cb..dcaf5e22c1 100644
--- a/src/libtess.js/tessmono.js
+++ b/src/libtess.js/tessmono.js
@@ -38,9 +38,10 @@
 // require libtess.GluMesh
 /*global libtess */
 
-libtess.tessmono = function() {
-
-};
+goog.provide('libtess.tessmono');
+goog.require('libtess');
+goog.require('libtess.geom');
+goog.require('libtess.mesh');
 
 
 /**