diff --git a/direct/src/actor/Actor.py b/direct/src/actor/Actor.py
index 8a7ef093b0..b9ba299aaa 100644
--- a/direct/src/actor/Actor.py
+++ b/direct/src/actor/Actor.py
@@ -1103,8 +1103,8 @@ class Actor(DirectObject, NodePath):
         # Get a handle to the joint.
         joint = bundle.findChild(jointName)
 
-        if node == None:
-            node = self.attachNewNode(jointName)
+        if node is None:
+            node = partDef.partBundleNP.attachNewNode(jointName)
 
         if (joint):
             if localTransform:
diff --git a/direct/src/filter/CommonFilters.py b/direct/src/filter/CommonFilters.py
index 493f2d9794..894b57c321 100644
--- a/direct/src/filter/CommonFilters.py
+++ b/direct/src/filter/CommonFilters.py
@@ -131,6 +131,9 @@ class CommonFilters:
             if (len(configuration) == 0):
                 return
 
+            if not self.manager.win.gsg.getSupportsBasicShaders():
+                return False
+
             auxbits = 0
             needtex = set(["color"])
             needtexcoord = set(["color"])
@@ -338,7 +341,10 @@ class CommonFilters:
                 text += "  o_color = float4(1, 1, 1, 1) - o_color;\n"
             text += "}\n"
 
-            self.finalQuad.setShader(Shader.make(text, Shader.SL_Cg))
+            shader = Shader.make(text, Shader.SL_Cg)
+            if not shader:
+                return False
+            self.finalQuad.setShader(shader)
             for tex in self.textures:
                 self.finalQuad.setShaderInput("tx"+tex, self.textures[tex])
 
diff --git a/direct/src/showbase/ShowBase.py b/direct/src/showbase/ShowBase.py
index 23588cb978..3f94601af5 100644
--- a/direct/src/showbase/ShowBase.py
+++ b/direct/src/showbase/ShowBase.py
@@ -1279,8 +1279,7 @@ class ShowBase(DirectObject.DirectObject):
         if win == None:
             win = self.win
 
-        if win != None and win.getSideBySideStereo() and \
-                win.hasSize() and win.getSbsLeftYSize() != 0:
+        if win != None and win.hasSize() and win.getSbsLeftYSize() != 0:
             aspectRatio = float(win.getSbsLeftXSize()) / float(win.getSbsLeftYSize())
         else:
             if win == None or not hasattr(win, "getRequestedProperties"):
@@ -2823,9 +2822,10 @@ class ShowBase(DirectObject.DirectObject):
             # changed and update the camera lenses and aspect2d parameters
             self.adjustWindowAspectRatio(self.getAspectRatio())
 
-            if win.getSideBySideStereo() and win.hasSize() and win.getSbsLeftYSize() != 0:
+            if win.hasSize() and win.getSbsLeftYSize() != 0:
                 self.pixel2d.setScale(2.0 / win.getSbsLeftXSize(), 1.0, 2.0 / win.getSbsLeftYSize())
-                self.pixel2dp.setScale(2.0 / win.getSbsLeftXSize(), 1.0, 2.0 / win.getSbsLeftYSize())
+                if self.wantRender2dp:
+                    self.pixel2dp.setScale(2.0 / win.getSbsLeftXSize(), 1.0, 2.0 / win.getSbsLeftYSize())
             else:
                 xsize, ysize = self.getSize()
                 if xsize > 0 and ysize > 0:
diff --git a/panda/src/audiotraits/openalAudioSound.cxx b/panda/src/audiotraits/openalAudioSound.cxx
index da379bfd5c..9abaf24036 100644
--- a/panda/src/audiotraits/openalAudioSound.cxx
+++ b/panda/src/audiotraits/openalAudioSound.cxx
@@ -435,7 +435,11 @@ pull_used_buffers() {
   ReMutexHolder holder(OpenALAudioManager::_lock);
   while (_stream_queued.size()) {
     ALuint buffer = 0;
-    alGetError();
+    ALint num_buffers = 0;
+    alGetSourcei(_source, AL_BUFFERS_PROCESSED, &num_buffers);
+    if (num_buffers <= 0) {
+      break;
+    }
     alSourceUnqueueBuffers(_source, 1, &buffer);
     int err = alGetError();
     if (err == AL_NO_ERROR) {
diff --git a/panda/src/glesgsg/glesgsg.h b/panda/src/glesgsg/glesgsg.h
index c0afb58b56..64d64db216 100644
--- a/panda/src/glesgsg/glesgsg.h
+++ b/panda/src/glesgsg/glesgsg.h
@@ -62,6 +62,9 @@
 // #include <GLESglext.h>
 #endif
 
+// Some implementations (Arch Linux) set this in glext.h
+typedef char GLchar;
+
 #include "panda_esglext.h"
 
 // This helps to keep the source clean of hundreds of ifdefs.
diff --git a/panda/src/glstuff/glGraphicsStateGuardian_src.cxx b/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
index ec9d1d603f..af84e2bafd 100644
--- a/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
+++ b/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
@@ -7585,7 +7585,7 @@ make_shadow_buffer(LightLensNode *light, Texture *tex, GraphicsOutput *host) {
     flags |= GraphicsPipe::BF_size_square;
   }
 
-  CLP(GraphicsBuffer) *sbuffer = new GLGraphicsBuffer(get_engine(), get_pipe(), light->get_name(), fbp, props, flags, this, host);
+  CLP(GraphicsBuffer) *sbuffer = new CLP(GraphicsBuffer)(get_engine(), get_pipe(), light->get_name(), fbp, props, flags, this, host);
   sbuffer->add_render_texture(tex, GraphicsOutput::RTM_bind_or_copy, GraphicsOutput::RTP_depth);
   get_engine()->add_window(sbuffer, light->get_shadow_buffer_sort());
   return sbuffer;
diff --git a/panda/src/ode/odeTriMeshData.cxx b/panda/src/ode/odeTriMeshData.cxx
index 5f02cefa56..a87853c4bb 100644
--- a/panda/src/ode/odeTriMeshData.cxx
+++ b/panda/src/ode/odeTriMeshData.cxx
@@ -99,6 +99,7 @@ OdeTriMeshData(const NodePath& model, bool use_normals) :
 
   write_faces(odetrimeshdata_cat.debug());
 
+#ifdef dSINGLE
   if (!use_normals) {
     build_single(_vertices, sizeof(StridedVertex), _num_vertices,
                  _faces, _num_faces * 3, sizeof(StridedTri));
@@ -107,6 +108,16 @@ OdeTriMeshData(const NodePath& model, bool use_normals) :
                   _faces, _num_faces * 3, sizeof(StridedTri),
                   _normals);
   }
+#else
+  if (!use_normals) {
+    build_double(_vertices, sizeof(StridedVertex), _num_vertices,
+                 _faces, _num_faces * 3, sizeof(StridedTri));
+  } else {
+    build_double1(_vertices, sizeof(StridedVertex), _num_vertices,
+                  _faces, _num_faces * 3, sizeof(StridedTri),
+                  _normals);
+  }
+#endif
 
   preprocess();
 }