2 files changed, 12 insertions, 1 deletions
diff --git a/src/jsifier.js b/src/jsifier.js
index 8e688d8d..904517e1 100644
--- a/src/jsifier.js
+++ b/src/jsifier.js
@@ -375,11 +375,15 @@ function JSify(data, functionsOnly, givenFunctions) {
     processItem: function(item) {
       function addFromLibrary(ident) {
         if (ident in addedLibraryItems) return '';
+        addedLibraryItems[ident] = true;
+
+        // dependencies can be JS functions, which we just run
+        if (typeof ident == 'function') return ident();
+
         // Don't replace implemented functions with library ones (which can happen when we add dependencies).
         // Note: We don't return the dependencies here. Be careful not to end up where this matters
         if (('_' + ident) in Functions.implementedFunctions) return '';
 
-        addedLibraryItems[ident] = true;
         var snippet = LibraryManager.library[ident];
         var redirectedIdent = null;
         var deps = LibraryManager.library[ident + '__deps'] || [];
diff --git a/src/library_gl.js b/src/library_gl.js
index dbde945c..3c33ec2c 100644
--- a/src/library_gl.js
+++ b/src/library_gl.js
@@ -14,6 +14,8 @@ var LibraryGL = {
     uniforms: {},
     shaders: {},
 
+    matrix: {},
+
     // Linear lookup in one of the tables (buffers, programs, etc.). TODO: consider using a weakmap to make this faster, if it matters
     scan: function(table, object) {
       for (var item in table) {
@@ -834,6 +836,11 @@ var LibraryGL = {
       }
       return Runtime.addFunction(func);
     }
+  },
+
+  glBegin__deps: ['$GL', function() { return 'GL.matrix.lib = ' + read('gl-matrix.js') }],
+  glBegin: function() {
+    Module.print('TODO');
   }
 };